RECORD: Darwin, C. R. n.d. CUL-DAR15.2.36. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Text prepared and edited by John van Wyhe. RN1
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-DAR15.2 contains calculations and tables for Darwin's 'big book' Natural Selection F1583.
36
(11
(Decandolle)
Orders divided almost exactly equally (unfavouralbe X vars calculated)
Largest Genera Smallest genera
2 places of Decimals 2 places
X Acanthaceae 133/668 = ✔ 199/1000 133/200 = 1.50
164/755 = ✔ 217/1000 X 164.221 = 1.34
Solanaceae 149/81 = ✔ 175/1000 149/209 = 1.40
120/707 = ✔ 169/1000 120/185 = 1.54
Borragineae 39/309 = ✔ 126/1000 39/51 = 1.30
30/282 = ✔ 106/1000 30.45 = 1.50
X Scrophulariae 65/867 = ✔ 74/1000 65/75 = 1.15
77/893 = ✔ 86/1000 X 77/92 = 1.19
X Labiatae
115/1153 = ✔ 99/1000 115/138 = 1.20
125/1124 = ✔ 111/1000 X 125/192 = 1.53 ✔
X Protacea
63/479 = ✔ 131/1000 ✔
63/87 = 1.38
96/505 = ✔ 190/1000 X 96/137 = 1.42
X Verbenaceae 13/281 = ✔ 46/1000 13/13 = 1.0
13/307 = ✔ 42/1000 13/13 = 1.0
Leguminosae 138/1749 = 77 /1000 138/192 = 1.39
123/1807 = 68 /1000 123/161 = 1.30
Rosaceae 81/350 = 231 /1000 ✔
81/278 = 3.43
46/356 = 129 /1000
46/94 = 2.04
Polygoniaceae 80/341 = 234 /1000 ✔
80/149 = 1.86
58/335 = 108 /1000
58/74 = 1.27
Little order 83/767 = 108 /1000
83/133 = 1.59
77/759 = 101 /1000 767 [+] 759 [=] 1526
77/90 = 1.16
Summary 959/7815 [+] 7830 [=] 15645 = 122 /1000 959/1525 = 1.59
929/7830 = 118 /1000 (Q)
929/1304 = 1.40
N.B. Rosaceae & Polygoniaceae, which have far more varyng species in large genera than small have far more varieties to species.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 December, 2025