CUL-DAR75.96    Abstract:    [1809--1882.04.00]   [references incomplete] `Q91-Q127'   Text   Image

The Complete Work of Charles Darwin Online 96 (5 Abstract Quarts Pamphlets 91. Naudin on new characters variability of Hybrids, quoted in Dom. An. 92. Gaudry Pikermi fossil – very good, on transitional forms in fossil mammals 93. Rutimeyer Zahmen Rindes use Dom. an. 96. Göppert on strange fossil plant, intermedial on first appearance of algæ monocot 97. Alph. Milne Edwards – Some isolated Birds had many extinct forms, as Flamingoes –  on glacial birds in S. Europe 98. Hofman on struggle of

CUL-DAR75.68    Abstract:    [1809--1882.04.00]   [references incomplete] `[G]159-[G]183'   Text   Image

The Complete Work of Charles Darwin Online 68 (6 8vo Pamphlet 159 Dana on Azoic Rock in America 14 [textra porphery] during Silurian Carb. periods 17, 19 Imperfection of N. American Geological record 28 Leidy has described Cretacean Cetacea Latham 146, 147 On Classification in Languages by descent/ 141 bis on extinction of intermedial vars (1853) Naudin – on crosses of the two Stramonium's – Do not cross by insects – On Reversions p 9 Petunia not crossing by insects. Lubbock p 7 on variation

CUL-DAR75.99    Abstract:    [1809--1882.04.00]   [references incomplete] `Q228-Q276'   Text   Image

The Complete Work of Charles Darwin Online 99 (8 Abstract of 4to Pamphlets 228 Saporta. Proofs of very slow modification in fossil plants of Konmi, (Eubac) Cartal. 230 Eimer, Lacerta muralis cœrulea of Capri p. 18 great difference in [unity] of var. on islets off Capri on Capri p 19 The vars kept separate when in confinement p 24 The sp. varies in the same manner on Capri, at Naples on continent 29 many intermediate forms, but the same in distinct places. p. 32 do. p. 36 38 causes – 37. a

CUL-DAR205.8.62-63    Abstract:    [Undated]   'Annales Des Sciences Naturelles (Botany)' 3s 12: 19ff; 13: [reference incomplete]; 14: 141   Text   Image

The Complete Work of Charles Darwin Online (1 Ann. des Sc. nat. Bot. Series 3 Tome 12. [1849] p. 196 Melastomacearum Monographicæ Descriptionis Auctore Carolo Naudin. p. 199 Character of whole Family rasissime abortu unisexuales – Stamina ….. petalorum numéro sæpissime dupla et alternatim inter se inæqualia, iis rarius numéro æqualia connectivo infra loculos sæpissime producto et varie appendiculato Stylus [simplex] sæpius filiformis, stigmate punctiformis p. 200 Subdivision of Order. I

CUL-DAR128.-    Note:    1852--1860   'Books Read' and 'Books to be Read' notebook   Text   Image

birds. 2 vols. Halifax. Cuvier, Georges. 1830. Éloge historique de Louis-François-Elisabeth Baron Ramond. Mémoires de l'Académie Royale des Sciences de l'Institut de France. Histoire de l'Académie. Analyse des travaux de l'Académie royale des sciences, pendant l'année 1826, pp. clxix-cc. Ferguson, George. 1854. Ferguson's illustrated series of rare and prize poultry. London. [Darwin Library in CUL] Memoirs of the Board of Agriculture of New York. New York. 1823-6. Naudin, Charles. 1852

CUL-DAR128.-    Note:    1852--1860   'Books Read' and 'Books to be Read' notebook   Text   Image

. 1859 [Heer 1854] Yules Ava (Innes) Hairy woman— (Read) [Yule 1858] Heer, Oswald. 1854. Introduction à la flore tertiäre de la Suisse. (Translated by C. T. Gaudin.) Bibliothèque Universelle. Archives des Sciences Physiques et Naturelles 26: 293-314. Jesse, Edward, ed. 1849. The natural history of Selborne [By Gilbert White]. With additions and supplementary notes by Sir William Jardine. (Bohn's Illustrated Library.) London. Naudin, Charles. 1856. Nouvelles recherches sur les caractères

CUL-DAR205.7.146    Abstract:    [Undated]   'Annales Des Sciences Naturelles (Botany)' 4s 11 1859: 6   Text   Image

The Complete Work of Charles Darwin Online [146] Annales des Sc. Nat 4th. Series. Bot. Tom XI 1859 p. 6. Naudin on Cucumis, says he considers as good species, not only those that are sterile when crossed, but those when crossed produce fertile offspring, which present sensible. anomalies anomalies in their manner of growth — or whose whose offspring revert revert with more or less rapidity to either parent type

F380    Book:     Darwin, C. R. 1860. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. New York: D. Appleton. New edition, revised and augmented.   Text   Image   PDF

cies and varieties, and from the principle of general gradation, that species have been modified; and he attributes the modification to the change of circumstances. The author (1855) has treated Psychology on the principle of the necessary acquirement of each mental power and capacity by gradation. In 1852 (Revue Horticole, p. 102), M. Naudin, a distinguished botanist,* has expressly stated his belief that species are formed in an analogous manner as varieties are under cultivation; and the

F381    Book:     Darwin, C. R. 1861. On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 3d ed. Seventh thousand.   Text   Image   PDF

modification to the change of circumstances. The author (1855) has also treated Psychology on the principle of the necessary acquirement of each mental power and capacity by gradation. In 1852 ('Revue Horticole,' p. 102) M. Naudin, a distinguished botanist, has expressly stated his belief that species are formed in an analogous manner as varieties are under cultivation; and the latter process he attributes to man's power of selection. But he does not show how selection acts under nature. He believes

F2291    Periodical contribution:     Darwin, C. R. 1913. [Letter to Charles Naudin, 1863]. In Louis Blaringhem, La notion d'espèce et la disjonction des hybrides, d'après Charles Naudin (1852-1875). Progressus rei botanicae 4: 27-108, p. 94.   Text   Image

. J'anticipe avec grand intérêt votre ouvrage sur l'Hybridation. Agréez mes remerciements cordi(aux) pour votre extrême bonté et croyez moi, avec beaucoup de respect, votre très obéissant serviteur. Charles Darwin. 1) 1) Madame Naudin m'a fait l'honneur de me remettre cinq lettres inédites de Darwin à son mari; celle-ci fut rédigée en français, sans doute parle secrétaire de Darwin, qui a seulement mis au bas sa signature; les autres sont en anglais, de la main de Darwin; l'une d'elles est

CUL-DAR18.(1-235)    Draft:    [1864]   'On the movements and habits of climbing plants' part 2   Text   Image

(The formation rapid growth of these adhesive discs, with their power of enveloping the finest fibres, in one of the most remarkable peculiarities in the structure function of tendrils. We have seen that these are formed by two species of Bignonia by Ampelopsis; and I hear from Dr. Hooker that Naudin has described a Cucurbitaceous genus, the extremities of the tendrils all adhere to are enlarged spread out like fingers all adherent. The outgrowth of the disc, in the former genus is caused by

F1578    Periodical contribution:     Olby, R. C. ed. 1963. Charles Darwin's manuscript of pangenesis. British Journal of the History of Science 1: 251-263.   Text   Image

those who have closely studied hybrids and mongrels, especially M. Naudin, believe that all the characters of both parent-species are commingled, often in very unequal degrees in the unified product, but are not fused together or changed in nature like two elements in a chemical union. We sometimes see evidence of this in the manner in which the petals of mongrel hybrid plants are finely streaked or blotched with the pure colours of the two parent-forms; and still more plainly in their reversion

F1733    Periodical contribution:     Darwin, C. R. 1865. On the movements and habits of climbing plants. [Read 2 February] Journal of the Linnean Society of London (Botany) 9: 1-118, 13 text figures.   Text   Image   PDF

the revolving-power. With respect to the abortion of tendrils, certain cultivated varieties of Cucurbita pepo have, according to Naudin†, either quite lost these organs or bear semi-monstrous representatives of them. In my limited experience, I have met with only one instance of their natural suppression, namely, in the common Bean. All the other species of Vicia, I believe, bear tendrils; but the Bean is stiff enough to support its own stem, and in this species, at the end of the petiole where

F834a    Book:     Darwin, C. R. 1865. On the movements and habits of climbing plants. London: Longman, Green, Longman, Roberts & Green and Williams & Norgate.   Text   Image   PDF

the revolving-power. With respect to the abortion of tendrils, certain cultivated varieties of Cucurbita pepo have, according to Naudin†, either quite lost these organs or bear semi-monstrous representatives of them. In my limited experience, I have met with only one instance of their natural suppression, namely, in the common Bean. All the other species of Vicia, I believe, bear tendrils; but the Bean is stiff enough to support its own stem, and in this species, at the end of the petiole where

F385    Book:     Darwin, C. R. 1866. On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 4th ed. 8th thousand.   Text   Image   PDF

so-called distinct species; and to these a third may be added, namely, the common turnip. According to the ordinary view of each species having been independently created, we should have to attribute this similarity in the enlarged stems of these three plants, not to the vera causa of community of descent, and a consequent tendency to vary in a like manner, but to three separate yet closely related acts of creation. Many similar cases of analogous variation have been observed by Naudin in the

F385    Book:     Darwin, C. R. 1866. On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 4th ed. 8th thousand.   Text   Image   PDF

forms, and he experimented on uncultivated species of willows; whilst Naudin, on the other hand, insists in the strongest terms on the almost universal tendency to reversion in hybrids, and he experimented chiefly on cultivated plants. G rtner further states that when any two species, although most closely allied to each other, are crossed with a third species, the hybrids are widely different from each other; whereas, if two very distinct varieties of one species are crossed with another

F385    Book:     Darwin, C. R. 1866. On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 4th ed. 8th thousand.   Text   Image   PDF

distinguishing species and varieties, and from the principle of general gradation, that species have been modified; and he attributes the modification to the change of circumstances. The author (1855) has also treated Psychology on the principle of the necessary acquirement of each mental power and capacity by gradation. In 1852 M. Naudin, a distinguished botanist, expressly stated, in an admirable paper on the Origin of Species ('Revue Horticole,' p. 102; since partly republished in the 'Nouvelles Archives

CUL-DAR109.B78    Note:    1866.07.21   Lythrum / One of the last lot of hom[omorphic] long-styled seedling from   Text   Image

Examine pollen of natural Plant next year, not oldest plant of all. See Naudin Archives fore reference about sexes being affected by Hydrandria.─ bears on all coming long-style

F674    Book:     Darwin, C. R. 1867. Die Entstehung der Arten im Thier- und Pflanzen-Reich durch natürliche Zuchtwahl, oder Erhaltung der vervollkommneten Rassen im Kampfe um's Daseyn. Translated by H. G. Bronn and J. V. Carus. Stuttgart: Schweizerbart. 3d ed.   Text   Image   PDF

Umstände zu. Derselbe Verfasser hat 1855 diePsychologie nach dem Princip einer nothwendig stufenvveisen Er-werbung jeder geistigen Kraft und Fähigkeit bearbeitet. Im Jahre 1852 hat Naudin, ein ausgezeichneter Botaniker,in einem vorzüglichen Aufsatz über die Entstehung der Arten(Recue horticole p. 102, später zum Thuil wieder abgedrucktin den »Nowelles Archive* du Museum T. I, p. 171) ausdrück-lich erklärt, dass nach seiner Ansicht Arten in analoger Weisevon der Natur, wie Varietäten durch die

F674    Book:     Darwin, C. R. 1867. Die Entstehung der Arten im Thier- und Pflanzen-Reich durch natürliche Zuchtwahl, oder Erhaltung der vervollkommneten Rassen im Kampfe um's Daseyn. Translated by H. G. Bronn and J. V. Carus. Stuttgart: Schweizerbart. 3d ed.   Text   Image   PDF

an, dass Bastarde lang cultivirter Pflanzen mehr zum Rückfall geneigt sind, als Bastarde von Arten im Naturzustande; und dies erklärt wahrscheinlich die eigentümlichen Verschiedenheiten in den Resultaten verschiedener Beobachter. So bezweifelt Max Wichura, ob Bastarde überhaupt je in ihre Stammformen zurück- schlagen; er experimentirte mit nicht cultivirten Arten von Wei- den ; während Naudin in der stärksten Weise die fast allgemeine Neigung zum Rückfall bei Bastarden betont, er experimentirte

F877.1    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 1.   Text   Image   PDF

distinguished botanist, M. Naudin,136 a flood of light has recently been thrown on this group of plants. M. Naudin, during many years, observed and experimented on above 1200 living specimens, collected from all quarters of the world. Six species are now recognised in the genus Cucurbita; but three alone have been cultivated and concern us, namely, C. maxima and pepo, which include all pumpkins, gourds, squashes, and vegetable marrow, and C. moschata, the water-melon. These three species are not known

F877.1    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 1.   Text   Image   PDF

referring to the species of Cucurbita, says, au milieu de toutes les variations du fruit, les tiges, les feuilles, les calices, les corolles, les étamines restent invariables dans chacune d'elles. Yet M. Naudin in describing Cucurbita pepo (p. 30) says, Ici, d'ailleurs, ce ne sont pas seulement les fruits qui varient, c'est aussi le feuillage et tout le port de la plante. Néanmoins, je crois qu'on la distinguera toujours facilement des deux autres espèces, si l'on veut ne pas perdre de vue les

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

above alluded to as varieties, as does a far higher authority, namely, M. Naudin.21 Sageret22 has observed that certain melons have a greater tendency, whatever the cause may be, to keep true than others; and M. Naudin, who has had such immense experience in this group, informs me that he believes that certain varieties intercross more readily than others of the same species; but he has not proved the truth of this conclusion; the frequent abortion of the pollen near Paris being one great

F878.1    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 1.   Text   Image   PDF

of melons, in which the fruit is so like that of the cucumber, both externally and internally, that it is hardly possible to distinguish the one from the other except by the leaves. The varieties of the melon seem to be endless, for Naudin after six years' study has not come to the end of them: he divides them into ten sections, including numerous sub-varieties which all intercross with perfect ease.143 Of the forms considered by Naudin to be varieties, botanists have made thirty distinct

F879.1    Book:     Darwin, C. R. [1868]. The variation of animals and plants under domestication. With a preface by Asa Gray. New York: Orange Judd and Co. vol. 1.   Text   Image   PDF

researches of a distinguished botanist, M. Naudin,136 a flood of light has recently been thrown on this group of plants. M. Naudin, during many years, observed and experimented on above 1200 living specimens, collected from all quarters of the world. Six species are now recognized in the genus Cucurbita; but three alone have been cultivated and concern us, namely, C. maxima and pepo, which include all pumpkins, gourds, squashes, and vegetable marrow, and C. moschata, the water-melon. These three

F877.1    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 1.   Text   Image   PDF

presque comparable à celle des espèces les mieux caractérisées. One variety, l'Orangin (pp. 43, 63), has such prepotency in transmitting its character that when crossed with other varieties a vast majority of the seedlings come true. Naudin, referring (p. 47) to C. pepo, says that its races ne diffèrent des espèces véritables qu'en ce qu'elles peuvent s'allier les unes aux autres par voie d'hybridité, sans que leur descendance perde la faculté de se perpétuer. If we were to trust to external

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

The law of reversion is equally powerful with hybrids, when they are sufficiently fertile to breed together, or when they are repeatedly crossed with either pure parent-form, as with mongrels. It is not necessary to give instances, for in the case of plants almost every one who has worked on this subject from the time of Kölreuter to the present day has insisted on this tendency. Gärtner has recorded some good instances; but no one has given more striking cases than Naudin.18 The tendency

F914.1    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 1.   Text   Image   PDF

 Früchte. 10. Cap. die Charactere, welche sie für specifisch werthvoll halten, unveränderlich sind. Um ein Beispiel zu geben, so sagt ein gewissenhafter Schriftsteller l39 , der sich auf die Arbeiten von Mr. Naudin  stützt, und von den Arten der Cucurbita spricht, au milieu de toutes les variations du fruit, les tiges, les feuilles, les calices, les corolles, les etamines restent invariables dans chacune d'elles. Doch sagt Mr. Xaudin  bei der Beschreibung von G. pepo ( pag. 30): Ici

F914.2    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 2.   Text   Image   PDF

hat beobachtet, dass gewisse Melonen eine grossere Neigung haben, sich reiner zu halten als andere, was auch die Ursache hiervon sein mag; und Mr. Naudin., der eine so ngeheure Erfahrung iiber diese Gruppe hat, theilt mir mit, dass er glaubt, gewisse Varietaten kreuzen sich viel leichter als andere derselbenSpecies; er hat aber die Richtigkeit dieser Erfahrung nicht bewiesen; das hau:fige Fehl­ schlagen des Pollens in der Nahe von Paris bietet eine grosse Schwierig­ keit dar. Nichtsdestoweniger

F879.1    Book:     Darwin, C. R. [1868]. The variation of animals and plants under domestication. With a preface by Asa Gray. New York: Orange Judd and Co. vol. 1.   Text   Image   PDF

purple-podded pea, the coats of the seeds alone have been affected in colour. We shall now see that the ovarium itself, whether forming a large fleshly fruit or a mere thin envelope, may be modified by foreign pollen, in colour, flavour, texture, size, and shape. The most remarkable instance, because carefully recorded by highly competent authorities, is one of which I have seen an account in a letter written, in 1867, by M. Naudin to Dr. Hooker. M. Naudin states that he has seen fruit growing on

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

and useless. Hemp, on the other hand, fails to produce in England that resinous matter which is so largely used in India as an intoxicating drug. The fruit of the Melon is greatly influenced by slight differences in culture and climate. Hence it is generally a better plan, according to Naudin, to improve an old kind than to introduce a new one into any locality. The seed of the Persian Melon produces near Paris fruit inferior to the poorest market kinds, but at Bordeaux yields delicious fruit

F878.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 2.   Text   Image   PDF

and useless. Hemp, on the other hand, fails to produce in England that resinous matter which is so largely used in India as an intoxicating drug. The fruit of the Melon is greatly influenced by slight differences in culture and climate. Hence it is generally a better plan, according to Naudin, to improve an old kind than to introduce a new one into any locality. The seed of the Persian Melon produces near Paris fruit inferior to the poorest market kinds, but at Bordeaux yields delicious fruit

F878.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 2.   Text   Image   PDF

aceous. This latter fact is well shown by the male flowers of di cious plants, which, according to Gallesio,115 first become double. Again, G rtner116 often insists that the flowers of even utterly sterile hybrids, which do not produce any seed, generally yield perfect capsules or fruit, a fact which has likewise been repeatedly observed by Naudin with the Cucurbitace ; so that the production of fruit by plants rendered sterile through any other and distinct cause is intelligible. K lreuter

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

process of self-attraction or self-affinity; this segregation taking place either by seminal or by bud-propagation. Naudin further believes that the segregation of the two specific elements or essences is eminently liable to occur in the male and female reproductive matter; and he thus explains the almost 48 'Nouvelles Archives du Muséum,' tom. i. p. 151. [page] 4

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

Prescott's 'Hist. of Mexico,' vol. ii. p. 61. 88 Sageret, 'Pomologie Physiologique,' 1830, p. 47; Gallesio, 'Teoria della Riproduzione,' 1816, p. 88; Godron, 'De l'Espèce,' 1859, tom. ii. pp. 63, 67, 70. In my tenth and eleventh chapters I have given details on the potato; and I can confirm similar remarks with respect to the onion. I have also shown how far Naudin concurs in regard to the varieties of the melon. [page] 21

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

Naudin, few in number; whilst those producing small fruit yield a vast number. Lastly, I have endeavoured to show in the eighteenth chapter that with many cultivated plants unnatural treatment checks the full and proper action of the reproductive organs, and they are thus rendered more or less sterile; consequently, in the way of compensation, the fruit becomes greatly enlarged, and, in double flowers, the petals are greatly increased in number. With animals, it has been found difficult to

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

heard it remarked, certain diseases appear actually to gain strength by the intermission of a generation. The transmission of dormant gemmules during many successive generations is hardly in itself more improbable, as 54 In these remarks I, in fact, follow Naudin, who speaks of the elements or essences of the two species which are crossed. See his excellent memoir in the 'Nouvelles Archives du Muséum,' tom. i. p. 151. VOL. II. 2 D [page] 40

F878.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 2.   Text   Image   PDF

hybrid plants raised from species which have not been cultivated, whilst, with those which have been long cultivated, they are of frequent occurrence. This conclusion explains a curious discrepancy: Max Wichura,50 who worked exclusively on willows, which had not been subjected to culture, never saw an instance of reversion; and he goes so far as to suspect that the careful G rtner had not sufficiently protected his hybrids from the pollen of the parent-species: Naudin, on the other hand, who

F878.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 2.   Text   Image   PDF

nature of the fruit; for, as Van Mons remarks,25 variations in the leaves are generally accompanied by some modification in the flower, and consequently in the fruit. In the Serpent melon, which has a narrow tortuous fruit above a yard in length, the stem of the plant, the peduncle of the female flower, and the middle lobe of the leaf, are all elongated in a remarkable manner. On the other hand, several varieties of Cucurbita, which have dwarfed stems, all produce, as Naudin remarks with surprise

F878.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., second issue. vol. 2.   Text   Image   PDF

cases we must follow Naudin,42 and admit that the essence or element of the two species, which terms I should translate into the gemmules, have an affinity for their own kind, and thus separate themselves into distinct stripes or blotches; and reasons were given, when discussing in the fifteenth chapter the incompatibility of certain characters to unite, for believing in such mutual affinity. When two forms are crossed, one is not rarely found to be prepotent in the transmission of character over

F914.1    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 1.   Text   Image   PDF

ausführlicher sehen werden, wo gewisse Thatsachen nach der bedeutenden Autorität von Gärtner und Kölreuter  angeführt werden 13( 5 Die Formen von C. pepo  werden von Naudin  unter sieben Sektionen classificirt, von denen eine jede untergeordnete Varietäten umfasst. Er hält diese Pflanze für die aller Wahrscheinlichkeit nach variabelste in der ganzen Welt. Die Frucht der einen Varietät (p. 33, 46) übertrifft im Volumen die einer andern um mehr als zweitauseudmal! Wenn die Frucht von sehr bedeutender

F914.1    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 1.   Text   Image   PDF

im Ansehen sehr verschieden sind, producirte in den ersten drei Jaliren eckige, fünfseitige Stengel und dann einige platte Stengel, wie die von G. phyllanthus. Kölreuter  führt auch Fälle von hybriden Lobelias und Verbascums an, welche Anfangs Blütlien von einer Farbe und später in der Jahreszeit Blütlien von einer verschiedenen Farbe pro- ducirten ,o;5 . Naudin 104  erzog vierzig Hybride von Datura laevis,  die er mit D. stramonium befruchtet hatte, und drei dieser Hybride erzeugten viele

F914.2    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 2.   Text   Image   PDF

doch nicht als unabiinderlich characteristisch fiir dieselben be-    18 Kolreuter theilt in'seiner »DrittenFortsetzung« 1766, p. 53. 59, Fil.He mit, ebenso in seiner bekannten »Abhandlung Qber Lavatera und Ja­ lapa.. Gartner, Bastarderzeugung, -p. 437. 441 u. s. w. Naudin, in seinen Recherches sur· l'Hybridite in:· Nouvelles Archives du Museum. Tom. I. p, 25. -by [page break] 48 Vererbung. . 13. Cap

F914.2    Book:     Darwin, C. R. 1868. Das Variiren der Thiere und Pflanzen im Zustande der Domestication. Stuttgart: Schweizerbart. vol. 2.   Text   Image   PDF

Forman reducirt oder a.bsorbirt werden; und ein noch hoherer Grad von Variabilitat erscheint, wenn drei distincte Species, und am allermeisten, wenn vier Species durch anfein­ anderfolgende Kreuzungen in einander verschmolzen warden·. -Ober die­ sen Punkt hinaus gelang es Gartner 42, auf dessen Autoritat die.vor­ stehenden Angaben gema.cht warden, niemals eine Verbj.ndung zu be­ wirken. Aber M a x W i l h n r a 43 vereinigte sechs distincte Species von 40 Naudin, Comptes rendus, 21. Novbr. 1864

F879.1    Book:     Darwin, C. R. [1868]. The variation of animals and plants under domestication. With a preface by Asa Gray. New York: Orange Judd and Co. vol. 1.   Text   Image   PDF

One variety, IOrangin (pp. 43, 63), has such prepotency in transmitting its character that when crossed with other varieties a vast majority of the seedlings come true. Naudin, referring (p. 47) to C. pepo, says that its races ne different des esp ces v ritables quen ce quelles peuvent sallier les unes aux autres par voie dhybridit , sans que leur descendance perde la facult de se perp tuer. If we were to trust to external differences alone, and give up the test of sterility, a multitude of

F877.1    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 1.   Text   Image   PDF

——————————————— 90 'Nouvelles Archives du Muséum,' tom. i. p. 143. 91 See on this head, Naudin, idem, p. 141. 92 The statement is believed by Dr. Lindley in 'Gard. Chron.,' 1857, pp. 382, 400. [page] 39

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

Corbié, 'Les Pigeons,' 1824, p. 226. 15 'Bastarderzeugung,' s. 256, 290, c. Naudin ('Nouvelles Archives du Muséum,' tom. i. p. 149) gives a striking instance of prepotency in Datura stramonium when crossed with two other species. 16 Flourens, 'Longévité Humaine.' p. 144, on crossed jackals. With respect to the difference between the F 2 [page] 6

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

any facts; for all experimenters, Kölreuter, Gärtner, Herbert, Sageret, Lecoq, and Naudin, have been struck with the wonderful vigour, height, size, tenacity of life, precocity, and hardiness of their hybrid productions. Gärtner52 sums up his conviction on this head in the strongest terms. Kölreuter53 gives numerous precise measurements of the weight and height of his hybrids in comparison with measurements of both parent-forms; and speaks with astonishment of their statura portentosa, their

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

the bony protuberances which properly support the horns exist as mere rudiments. With cultivated plants it is far from rare to find the petals, stamens, and pistils represented by rudiments, like those observed in natural species. So it is with the whole seed in many fruits; thus near Astrakhan there is a grape with mere traces of seeds, so small and lying so near the stalk that they are not perceived in eating the grape. 85 In certain varieties of the gourd, the tendrils, according to Naudin

F877.2    Book:     Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st ed., first issue. vol. 2.   Text   Image   PDF

to believe that in any of these cases long-lost characters have reappeared, and in most of them this certainly has not occurred. Three species of Cucurbita have yielded a multitude of races, which correspond so closely in character that, as Naudin insists, they may be arranged in an almost strictly parallel series. Several varieties of the melon are interesting from resembling in important characters other species, either of the same genus or of allied genera; thus, one variety has fruit so