RECORD: Darwin, C. R. [1847.07.09]. Abstract of Watson, Cybele Britannica. CUL-DAR46.2.B54. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2022. RN3
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR46.2 contains Notes for Natural selection.
[B54]
In Watson's Cybele in the monocot, (excluding as in Dicot, the Alien & Sarnian genera) there are 103 105 genera & 315 312 species (with same exclusions). Hence each genus has, on average 103/315 (3.05 species.
Of these 103, 105 there are 48 genera, which have one or more species, extending over all 18 or 17 Provinces. There are 111 species which thus extend — The 48 genera, which include these 111 species, have altogether 241 species, therefore each of the 48 genera has on average 48/241 (5.02, species & therefore larger than average of 3.05. Conversely those genera, 55 in number, which have not one of their 74 species, ranging over all 18 or 17 Provinces, have only on average 1.34 species in each genus.—
Taking Dicots & Monocots altogether, with same exclusions. (see most fully stated under Dicots) There are 477 Genera and 1255; hence each genus has an average 477/1255 1239 (2.63 species.
More accurate 477) 1238 2.6 (say nearly 2.6 or over)
Of these total 468 477 genera, there are 227 genera, (having (419) one or more species) 4 found in every 18 or 17 Provinces.— These 227 genera include 893 species; hence each of the genera has on average 3.93 species. Conversely the 250 genera, with (362) species, of which not one ranges over whole 18 or 17 Provinces, have on average each genus only 1.44 species in each.—
Grand Summary
(All these calculations must be done again)
1.44 3 4.32
[B54v]
Area 18 or 17 Provinces Species in genus Aliens without(?)
Provinces 2-6 Counties Area general Counties
Area 18 or 17 Provinces
Species in genus
not
Aliens without(?)
1069 Crocus G
Provinces 2-6 Area general Counties
Counties
Provinces
Listera ovata
Epipectis latifolia Orchis mascula
-- latifoli
maculata
Gymnadenia conopsea Habenaria bifolia
viridis Iris pseudacorus Allium ursinum
Hyacinthus nonscriptus Alisma plantago
-- ranunculoides Triglochin maritima
palustre Potamogeton pectinatus
pusillus perfoliatus
aliens 2
5
8
l
3
2
6
l (3)
2
vernus.
1070(?) C. nudiflorus Narcissus poeticus
biflorus Galanthus G nivalis(?) Lilium G martagon Tulipa G sylvestris(?) Allium 2 spec
Ornithogalum 2 spec Muscari G racemosum Convallaria bifolia
(12)
12
7
25
1032
1043
1044
1049
1058
1059
1061
1064
1065
1075
1078
1085
1088
1092
1096
1100
no6 no8
3 9 17 .75
3 3 17 60
4 7 18 68
2 7 18 82
3 9 18 82
5 15 18
5 10
2 5 18 70200
3 3 18 82
3 6 17 70
6 15 18 80
2 2 17 75
5 7 17 70
4 8 18
6 10 18 80
2 3 17 70
5 12 17 70
4 10 17 70
rufescens
llll 4 8 70
Zannichellia
natans
oblongus 16
l
Monoco
2 7 22
4 10 18 82
5 6 18 80
3 6 18 70100
Zoestera marina Lemna minor Sparganium natans
simplex ramosum
Juncus conglomeratus
effusus acutiflorus lampocarpus supinus compressus bufonius squarrosus
16 Gen. sp. 34
l 4
3
18
76
6 12 17 50
2 4 18 81
3 8 18
5 12 17 70
3 10 18
2 6 18 82
102 219
18 82
18 82
18 82
17 70
18 82
18 80
13x17 34 2524
Monocot
Watson, Hewett Cottrell. 1847-1860. Cybele Britannica; or British plants, and their geographical relations. London: Longman & Co. 4 vols. and part 1 of supplement, III, 87. IV, 69. XI, 4. [inscribed in vol. 1 "from the author"] CUL-DAR.LIB.664 vol. 1 PDF vol. 2 PDF vol. 3 PDF vol. 4 PDF supplement PDF
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
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