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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
bedeutend überwogen haben, wie »vir hernach anzunehmen Grund finden werden. Der Fall mit dem Oxlip ist interessant; dem kaum irgend ein and. ei Anzahl übi Landbezirk auf- gemeine Oxlip (nicht die l und vulgaris Bartfield den Rändern b Feldes und kleinen Waldes zu finden. In anderen Bezirken ist das Oxlip i : in der Nähe atzten fünfund- _ Jahre nicht mehr als fünf oder sechs Pflanzen oder Pflanzen- ii hwer zu errathen, was die Ursache dieser ihrere zu der nämlichen Form gehörende Pflanzen Wihe der
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
Primula elatior, Jacq., or the Bardfield Oxlip, is found in England only in two or three of the eastern counties. On the Continent it has a somewhat different range from that of the cowslip and primrose; and it inhabits some districts where neither of these species live.* In general appearance it differs so much from the common oxlip, that no one accustomed to see both forms in the living state could afterwards confound them; but there is scarcely more than a single character by which they can
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
CHAPTER II. HYBRID PRIMULAS. The Oxlip a hybrid naturally produced between Primula veris and vulgaris The differences in structure and function between the two parent-species Effects of crossing long-styled and short-styled Oxlips with one another and with the two forms of both parentspecies Character of the offspring from Oxlips artificially self-fertilised and cross-fertilised in a state of nature Primula elatior shown to be a distinct species Hybrids between other heterostyled species of
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
gefunden werdi zweiten so müssen wir künftig /'. pulgm Priimik rdfield Oxlip wird in nur in zwei oder drei der östlichen Grafschaften gefunden. A.ul 18 Vel- Verbreitung; und sie bewohnt einige Districte, wo keii In der allgemeinen Erscheinung weichl Behr vom gemeinen Oxlip ab, dasz Niemand, der daran 'ormen im lebenden Zi r verwechseln kann: esgibt aber kaum mehr als einen einzigen Charaoter, durch welchen niiiii bezeichnet werden kann, nämlich, ihre tinear-nblongen sind dem Kelch an ls. Wenn
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
PRIMULAS. The Oxlip a hybrid naturally produced between Primula veris and vulgaris The differences in structure and function between the two parent-species Effects of crossing long-styled and short-styled Oxlips with one another and with the two forms of both parent-species Character of the offspring from Oxlips artificially self-fertilised and cross-fertilised in a state of nature Primula elatior shown to be a distinct species Hybrids between other heterostyled species of Primula Supplementary
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
heterostyled dimorphic and trimorphic plants illegitimately fertilised with their own-form pollen, I shall have occasion to show that with the present species and several others, equal-styled varieties sometimes appear. PRIMULA ELATIOR, Jacq. Bardfield Oxlip of English Authors. This plant, as well as the last or Cowslip (P. veris, vel officinalis), and the Primrose (P. vulgaris, vel acaulis) have been considered by some botanists as varieties of the same species. But they are all three undoubtedly
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
other species of the genus. For instance I raised a red primrose from seed from a protected plant, and the flowers, though still resembling those of the primrose, were borne during one season in umbels on a long foot-stalk like that of a cowslip. With regard to the second class of facts in support of the cowslip and primrose being ranked as mere varieties, namely, the well-ascertained existence in a state of nature of numerous linking forms*: If it can be shown that the common wild oxlip, which is
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
smaller flowers, of a paler colour, almost like those of the primrose; the scapes were at first single-flowered, but later in the season a tall thick scape, bearing many flowers, like that of the parent oxlip, was thrown up. The third plant likewise produced at first only single-flowered scapes, with the flowers rather small and of a darker yellow; but it perished early. The second plant also died in September; and the first plant, though all three grew under very favourable conditions, looked
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
7 inches in height, which bore umbels of flowers of the same character as before. This fact led me to examine the other plants after they had flowered and were dug up; and I found that the flower-peduncles of all sprung from an extremely short common scape, of which no trace can be found in the pure primrose. Hence these plants are beautifully intermediate between the oxlip and the primrose, inclining rather towards the latter; and we may safely conclude that the parent oxlips had been
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
per capsule. So that out of the eight possible unions between the two forms of these two species, six were utterly barren, and two fairly fertile. We have seen also the same sort of extraordinary irregularity in the results of my twenty different crosses (Tables 14 to 18), between the two forms of the oxlip, primrose, and cowslip. Mr. Scott remarks, with respect to the results of his trials, that they are very surprising, as they show us that the sexual forms of a species manifest in their
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
hybride Nachkommen u'ilt. d V ii dem lan ait seinem eigenen Pollen befi ä drei langgriffelige Pflanzen dara Die erste derselben war in jedem Merkmal mit seiner Eltern- trug eher etwas kleinere Blüthen, von r /'. '»/'/ ''/'.-: die Schäfte waren zuerst einblüthig Jahre aber kam ein hoher dicker, viele Blüthen 1 der des elterlichen Oxlip, hervor. Die dritfc lucirte gleichfalls zuerst nur einblül 1- kleineren und dunkler gelben Bio ein. Auch die zweite Pflanze starb im September ab, und dii Pflanze
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
ii-| Hybride Primeln. Blüthen der /'. vulgaris, mit Pollen von dem lau Oxlip befruchtet, acht Kapseln producirten (Tabelli indessen nur ein niedriges Mittel an Samen enthielten, während dieselbe Zahl \on Blüthen der P. vulgaris ahnlich vom langgriffeligen B Oxlip, /'. elatior, befruchtet, nur eine einzige Kapsel re Pflanze eine durchaus um der /'. vulgaris vi dene Species ist. Pflanzen von P. elatior sind in einem Garten fünf- undzwanzig Jahre hindurch durch Samen fortgepflanzt worden und
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
dimorpher und trimorpher Pflanzen nach illegitimer Befi Gelegenheil enden und mehreren andern S] Primula elatior ip i und die Primel i Botanikern al worden. Sie sind aber alle drei unzweifelhaft verschieden, wie im erden wird. Die vor! hnung der allgemeinen Ersi ,Oxlip ähnlich, wi Primula elatior wird in England nur in zwei oder drei der 'ii Grafschaft! id ich bin von Mr. Doubledav mit n Pflanzen versehen worden, Aufmerksamkeit auf ihre Existenz in Eng] Theilen des Continent i 1 II. Müller9
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
und in manchen Beziehungen nicht gut zur Bastardbefruchi teichfalls reichlich verbastardirt worden. England wird das gemeine ,Oxlip', m -lip'i und P. vulgaris var. (,primrose') häufig gefunden und es tritt gelegentlich beinahe überall auf. Ii indermediären hybriden Form und der Existenz der P. elatior (dem ,Bardfield Oxlip'j, welche in gewissem Grade dem gemeinen « xliji ahnlich ist, ist der Anspruch der drei .in den l.'.n._ i Arien häufiger und ausfuhrlicher I -iIniii. Jahr 1875, : und 5j s
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
sex of a di cious plant, under similar circumstances, being crossed by the opposite sex of an allied and neighbouring species. Mr. H. C. Watson, a critical and most careful observer, made many experiments by sowing the seeds of cowslips and of various kinds of oxlips, and arrived at the following conclusion, namely, that seeds of a cowslip can produce cowslips and oxlips, and that seeds of an oxlip can produce cowslips, oxlips, and primroses. This conclusion harmonises perfectly with the view
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
extremely small. As these hybrids varied so much, an almost perfectly graduated series of forms, connecting together the two widely distinct parent-species, could easily have been selected. This case, like that of the common oxlip, shows that botanists ought to be * 'The Effects of Cross and Self-fertilisation,' 1876, p. 89. [page] 8
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
state of nature; and this is the only instance of such an occurrence known to me, with the exception of some wild plants of the Oxlip a hybrid between P. veris and vulgaris which were equal-styled. Herr Breitenbachs case is remarkable in another way; for equal-styled flowers were found in two instances on plants which bore both long-styled and short-styled flowers. In every other instance these two forms and the equal-styled variety have been produced by distinct plants. PRIMULA VULGARIS, Brit
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
\ -n ersten Blick sehr stark zu auf, von mehreren competent i, dasz sie P. und Oxlip au ler nämlichen Pflanze gezogen haben, und zweitens auf dem häufigen Vorkommen von Pflanzen im Naturzustande, welche alle inter- mediäre Stufen zw i geringem Werthe; denn da mau früher die Bedeutung der Heterostylie nicht kannte, wurden die tanzen in keinem Falle' gegen die Besuche der ln- hützt; und die Gefahr, das/, eine isolirte I mehrei wenn sie ron derselben Form sind, von einer be- nachbarten /' kreuzt
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
Trimorphic Plants. Ibid. vol. x. 1868, p. 393. On the Specific Differences between Primula veris, Brit. Fl. (var. officinalis, Linn.), P. vulgaris, Brit. Fl. (var. acaulis, Linn.), and P. elatior, Jacq.; and on the Hybrid Nature of the Common Oxlip. With Supplementary Remarks on Naturally Produced Hybrids in the Genus Verbascum. Ibid. vol. x. 1868, p. 437. * The term heterostyled does not express all the differences between the forms; but this is a failure common in many cases. As the term has
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F1277    Book:     Darwin, C. R. 1877. The different forms of flowers on plants of the same species. London: John Murray.   Text   Image   PDF
; Campanula colorata, 330 Ononis column , 325 minutissima, 326, 341 parviflora, 326 Origanum vulgare, 298 Oxalis acetosella, 181, 182; pistil of, 261; cleistogamic flowers, 321; pollen-grains, 338 Bowii, 179 compressa, 179 corniculata, 181 Deppei, 179 hedysaroides, 213 homostyled species, 181 incarnata, 322 Regnelli, 173 175, 212 rosea, 178, 213 (Biophytum) sensitiva, 181, 322; stigma, 253 speciosa, 169, 175, 212 stricta, 181, 182 trop oloides, 182 Valdiviana, 170 172, 211, 212 Oxlip, the Bardwell
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F1297    Book:     Darwin, C. R. 1877. Die verschiedenen Blüthenformen an Pflanzen der nämlichen Art. Translated by J. V. Carus. Stuttgart: Schweizerbart.   Text   Image   PDF
Blüthen desselben Characters wie Früher trugen. Diese Ti. führte mich darauf, die anderen Pflanzen zu untersuchen, nachdem sie geblüht hatten und ausgegraben waren: und ich fand, dasz die Blüthen- Aller von einem aus/erst kurzen gemeinsamen Schalte entspran- i dem in der reinen /'. vulgaris keine Spur zu sehen ist. Es daher diese Pflanzen wunderschön in der Mute zwischen dem Oxlip und dei nach der letztem hinni und wir können ruhig liehen Oxlips vi ulgaris befrucl I aren. nen nun gegebenen
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
forms of the common oxlip. Illegitimate union. Legitimate union. Illegitimate union. Legitimate union. Short-styled oxlip, by pollen of short-styled oxlip: 20 flowers fertilised, did not produce one capsule. Short-styled oxlip, by pollen of long-styled oxlip: 10 flowers fertilised, did not produce one capsule. Long-styled oxlip, by its own pollen: 24 flowers fertilised, produced five capsules, containing 6, 10, 20, 8, and 14 seeds. Average 11 6. Long-styled oxlip, by pollen of short-styled oxlip
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
, by pollen of short-styled oxlip: 8 flowers fertilised, produced not one capsule. Long-styled cowslip, by pollen of short-styled oxlip: 8 flowers fertilised, produced one capsule, containing 26 seeds. Long-styled cowslip, by pollen of long-styled oxlip: 8 flowers fertilised, produced three capsules, containing 5, 6, and 14 seeds. Average 8 3. Short-styled cowslip, by pollen of long-styled oxlip: 8 flowers fertilised, produced eight capsules, containing 58, 38, 31, 44, 23, 26, 37, and 66 seeds
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
We see in these five tables the number of capsules and of seeds produced, by crossing both forms of the oxlip in a legitimate and illegitimate manner with one another, and with the two forms of the primrose and cowslip. I may premise that the pollen of two of the short-styled oxlips consisted of nothing but minute aborted whitish cells; but in the third short-styled plant about one-fifth of the grains appeared in a sound condition. Hence it is not surprising that neither the short-styled nor
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
hereafter see good reason to believe. The case of the oxlip is interesting; for hardly any other instance is known of a hybrid spontaneously arising in such large numbers over so wide an extent of country. The common oxlip (not the P. elatior of Jacq.) is found almost everywhere throughout England, where both cowslips and primroses grow. In some districts, as I have seen near Hartfield in Sussex and in parts of Surrey, specimens may be found on the borders of almost every field and small wood
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
where. Owing to the frequency of this intermediate hybrid form, and to the existence of the Bardfield oxlip (P. elatior), which resembles to a certain extent the common oxlip, the claim of the three forms to rank as distinct species has been discussed oftener and at greater length than that of almost any other plant. Linn us considered P. veris, vulgaris and elatior to be varieties of the same species, as do some distinguished botanists at the present day; whilst others who have carefully
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
somewhat smaller and more deeply coloured than those of the common primrose. From what I have myself observed with oxlips, I cannot doubt that this plant was an oxlip in a highly variable condition, almost like that of the famous Cytisus adami. This presumed oxlip was propagated by offsets, which were planted in different parts of the garden; and if Prof. Henslow took by mistake seeds from one of these plants, especially if it had been crossed by a primrose, the result would be quite intelligible
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
species exist or have recently existed; and this holds good, as far as I can discover, with the oxlip; but the P. elatior of Jacq., which, as we shall presently see, constitutes a distinct species, must not be confounded with the common oxlip. Secondly, by the supposed hybrid plant being nearly intermediate in character between the two parent-species, and especially by its resembling hybrids artificially made between the same two species. Now the oxlip is intermediate in character, and
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
illegitimately fertilising, pure cowslips and primroses. The four corresponding legitimate unions, however, were moderately fertile, and one (viz. that between a short-styled cowslip and the long-styled oxlip in Table 17) was nearly as fertile as if both parents had been pure. A short-styled primrose legitimately fertilised by the long-styled oxlip (Table 18) also yielded a moderately good average, namely 48 7 seeds; but if this short-styled primrose had been fertilised by a long-styled
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
oxlip is a hybrid between the primrose and cowslip, it is not surprising that eight long-styled flowers of the primrose, fertilised by pollen from the long-styled common oxlip, produced eight capsules (Table 18), containing, however, only a low average of seeds; whilst the same number of flowers of the primrose, similarly fertilised by the long-styled Bardfield oxlip, produced only a single capsule; this latter plant being an altogether distinct species from the primrose. Plants of P. elatior
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
Primula elatior, Jacq., or the Bardfield Oxlip, is found in England only in two or three of the eastern counties. On the Continent it has a somewhat different range from that of the cowslip and primrose; and it inhabits some districts where neither of these species live.* In general appearance it differs so much from the common oxlip, that no one accustomed to see both forms in the living state could afterwards confound them; but there is scarcely more than a single character by which they can
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
CHAPTER II. HYBRID PRIMULAS. The Oxlip a hybrid naturally produced between Primula veris and vulgaris The differences in structure and function between the two parent-species Effects of crossing long-styled and short-styled Oxlips with one another and with the two forms of both parent-species Character of the offspring from Oxlips artificially self-fertilised and cross-fertilised in a state of nature Primula elatior shown to be a distinct species Hybrids between other heterostyled species of
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
CONTENTS. PREFACE TO REPRINT OF 1884 Page v PREFACE xiii INTRODUCTION 1 13 CHAPTER I. HETEROSTYLED DIMORPHIC PLANTS: PRIMULACE . Primula veris or the Cowslip Differences in structure between the two forms Their degrees of fertility when legitimately and illegitimately united P. elatior, vulgaris, Sinensis, auricula c. Summary on the fertility of the heterostyled species of Primula Homostyled species of Primula Hottonia palustris Androsace Vitalliana 14 54 CHAPTER II. HYBRID PRIMULAS. The oxlip
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
heterostyled dimorphic and trimorphic plants illegitimately fertilised with their own-form pollen, I shall have occasion to show that with the present species and several others, equal-styled varieties sometimes appear. PRIMULA ELATIOR, Jacq. Bardfield Oxlip of English Authors. This plant, as well as the last or Cowslip (P. veris, vel officinalis), and the Primrose (P. vulgaris, vel acaulis) have been considered by some botanists as varieties of the same species. But they are all three undoubtedly
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
other species of the genus. For instance, I raised a red primrose from seed from a protected plant, and the flowers, though still resembling those of the primrose, were borne during one season in umbels on a long foot-stalk like that of a cowslip. With regard to the second class of facts in support of the cowslip and primrose being ranked as mere varieties, namely, the well-ascertained existence in a state of nature of numerous linking forms*: If it can be shown that the common wild oxlip, which is
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
smaller flowers, of a paler colour, almost like those of the primrose; the scapes were at first single-flowered, but later in the season a tall thick scape, bearing many flowers, like that of the parent oxlip, was thrown up. The third plant likewise produced at first only single-flowered scapes, with the flowers rather small and of a darker yellow; but it perished early. The second plant also died in September; and the first plant, though all three grew under very favourable conditions, looked
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
7 inches in height, which bore umbels of flowers of the same character as before. This fact led me to examine the other plants after they had flowered and were dug up; and I found that the flower-peduncles of all sprung from an extremely short common scape, of which no trace can be found in the pure primrose. Hence these plants are beautifully intermediate between the oxlip and the primrose, inclining rather towards the latter; and we may safely conclude that the parent oxlips had been
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
per capsule. So that out of the eight possible unions between the two forms of these two species, six were utterly barren, and two fairly fertile. We have seen also the same sort of extraordinary irregularity in the results of my twenty different crosses (Tables 14 to 18), between the two forms of the oxlip, primrose, and cowslip. Mr. Scott remarks, with respect to the results of his trials, that they are very surprising, as they show us that the sexual forms of a species manifest in their
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
. 169. On the Character and Hybrid-like Nature of the Offspring from the Illegitimate Unions of Dimorphic and Trimorphic Plants. Ibid. vol. x. 1868, p. 393. On the Specific Differences between Primula veris, Brit Fl. (var. officinalis, Linn.), P. Vulgaris, Brit. Fl. (var, acaulis, Linn.), and P. elatior, Jacq.; and on the Hybrid Nature of the Common Oxlip. With Supplementary Remarks on Naturally Produced Hybrids in the Genus Verbascum. Ibid. vol. x. 1868, p. 437. [page]
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
one sex of a di cious plant, under similar circumstances, being crossed by the opposite sex of an allied and neighbouring species. Mr. H. C. Watson, a critical and most careful observer, made many experiments by sowing the seeds of cowslips and of various kinds of oxlips, and arrived at the following conclusion, namely, that seeds of the cowslip can produce cowslips and oxlips, and that seeds of an oxlip can produce cowslips, oxlips, and primroses. This conclusion harmonises perfectly with the
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
extremely small. As these hybrids varied so much, an almost perfectly graduated series of forms, connecting together the two widely distinct parent-species, could easily have been selected. This case, like that of the common oxlip, shows that botanists ought to be * 'The Effects of Cross and Self-fertilisation,' 1876, p. 89. [page] 8
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
state of nature; and this is the only instance of such an occurrence known to me, with the exception of some wild plants of the Oxlip a hybrid between P. veris and vulgaris which were equal-styled. Herr Breitenbach's case is remarkable in another way; for equal-styled flowers were found in two instances on plants which bore both long-styled and short-styled flowers. In every other instance these two forms and the equal-styled variety have been produced by distinct plants. PRIMULA VULGARIS, Brit
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F1281    Book:     Darwin, C. R. 1884. The different forms of flowers on plants of the same species. 3d thousand. Preface by Francis Darwin. London: John Murray.   Text   Image   PDF
colorata, 330 Ononis column , 325 minutissima, 326, 341 parviflora, 326 Origanum vulgare, 298 Oxalis acetosella, 181, 182: pistil of, 261; cleistogamic flowers, 321; pollen-grains, 338 Bowii, 179 compressa, 179 corniculata, 181 Deppei, 179 hedysaroides, 213 homostyled species, 181 incarnata, 322 Regnelli, 173 175, 212 rosea, 178, 213 (Biophytum) sensitiva, 181, 322; stigma, 253 speciosa, 169, 175, 212 stricta, 181, 182 trop oloides, 182 Valdiviana, 170 172, 211, 212 Oxlip, the Bardwell, 32, 72
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A501.1    Book:     Krause, Ernst. 1885. Charles Darwin und sein Verhältnis zu Deutschland. Leipzig: E. Günther. vol. 1.   Text   Image   PDF
tiefgelben Prtmula veri, und der blassen stengellosen Primula acauto vorkommende hochstenglige Zwischenform (0,HP der Engländer), die man mit der ähniichen Primula e/aho~ (Barl field-Oxlip der Engländer) verwecbselt(und daram alle vier Formen als durch Übergänge verbundene Varietâten einer und derselben Art angesehen) hatte, vielmehr ein von der letzteren Art durchaus verschiedener Bastard zwischen den ungleichgriffligen Formen ) 0 the s^al relations of ,1, three for , o/ Lytlrr^ Salicari . A. a
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F1452.3    Book:     Darwin, Francis ed. 1887. The life and letters of Charles Darwin, including an autobiographical chapter. vol. 3. London: John Murray.   Text   Image   PDF
, Jacq.; and on the Hybrid Nature of the Common Oxlip. With Supplementary Remarks on Naturally Produced Hybrids in the Genus Verbascum. Ibid. 1869. The following letter shows that he began the work on heterostyled plants with an erroneous view as to the meaning of the facts.] C. Darwin to J. D. Hooker. Down, May 7 [1860]. . . . . I have this morning been looking at my experimental cowslips, and I find some plants have all flowers with long stamens and short pistils, which I will call male plants
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F1452.3    Book:     Darwin, Francis ed. 1887. The life and letters of Charles Darwin, including an autobiographical chapter. vol. 3. London: John Murray.   Text   Image   PDF
pamphlet from Germany, with the complimentary title of Darwinische Arten-Enstehung-Humbug ! Farewell, my best of old friends, C. DARWIN. C. Darwin to Asa Gray. September 10, [1867?] . . . . The only point which I have made out this summer, which could possibly interest you, is that the common Oxlip found everywhere, more or less commonly in England, is certainly a hybrid between the primrose and cowslip; whilst the P. elatior (Jacq.), found only in the Eastern Counties, is a perfectly distinct and
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F1452.3    Book:     Darwin, Francis ed. 1887. The life and letters of Charles Darwin, including an autobiographical chapter. vol. 3. London: John Murray.   Text   Image   PDF
from the common oxlip, except by the length of the seed-capsule relatively to the calyx. This seems to me rather a horrid fact for all systematic botanists. . . . . C. Darwin to F. Hildebrand. Down, November 16, 1868. MY DEAR SIR, I wrote my last note in such a hurry from London, that I quite forgot what I chiefly wished to say, namely to thank you for your excellent notices in the 'Bot. Zeitung' of my paper on the offspring of dimorphic plants. The subject is so obscure that I did not expect
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F1452.3    Book:     Darwin, Francis ed. 1887. The life and letters of Charles Darwin, including an autobiographical chapter. vol. 3. London: John Murray.   Text   Image   PDF
. acaulis, Linn.), and P. elatior, Jacq.; and on the Hybrid Nature of the common Oxlip. With Supplementary Remarks on naturally-produced Hybrids in the genus Verbascum. [1868:] Linn. Soc. Journ. x. 1869 (Botany), pp. 437 454. Note on the Habits of the Pampas Woodpecker (Colaptes campestris). Zool. Soc. Proc. Nov. 1, 1870, pp. 705 706. Fertilisation of Leschenaultia. Gardeners' Chronicle, p. 1166, 1871. The Fertilisation of Winter-flowering Plants. 'Nature,' Nov. 18, 1869, vol. i. p. 85. Pangenesis
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A75    Book:     Bettany, G.T. 1887. Life of Charles Darwin. London: Walter Scott.   Text   Image
Note on the Common Broom (Cytisus Scoparius). Linn. Soc. Jour., vol. ix., 1867 (Bot.), p.358. On the character and hybrid-like nature of the offspring from the illegitimate unions of dimorphic and trimorphic plants. Linn, Soc. Jour., vol. x., 1869 (Bot), pp. 393-437. On the specific difference between Primula veris, Brit. Fl. (var. officinalis, Linn.). P. vulgaris, Brit. Fl. (var. acaulis, Linn.) and P. elatior, Jacq. and on the hybrid nature of the common Oxlip. With supplementary remarks on
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F1452.3    Book:     Darwin, Francis ed. 1887. The life and letters of Charles Darwin, including an autobiographical chapter. vol. 3. London: John Murray.   Text   Image   PDF
, 293; on different forms of flowers in species of Primula, iii. 298, 300; on Lythrum, iii. 301; on Linum grandiflorum, iii. 302 note; on di cio-dimorphism, iii. 303; on dimorphic plants, iii. 306, 308; on the Oxlip, iii. 306; on the fertilisation of Linum grandiflorum, iii. 302, note; on movement of tendrils, iii. 313; on the climbing of Bignonia capreolata, iii. 314; on climbing plants, iii. 316; on Drosera, iii. 318, 322, 325; on the bloom of leaves and fruit, iii. 340. Gray, John Edward, his
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