RECORD: Darwin, C. R. n.d. Henslows List / Genera with 5 sp[ecies] & up. CUL-DAR16.144. (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.
144
Henslows List
Genera with 5 sp & up |
Genera with 4, 3, 2 & 1 sp. |
69 No' of sp. with common or lesser vars [÷] 560 no' of spec [=] .123 (Q) |
67 species with Common or lesser vars [÷] 692 no' of sp [=] .096 (Q) |
The result wd have been much strngr if both kinds of vars. had been included
Proportion of vars to species; latter 136 in number.—
107 no' of above vars. [÷] 69 no of above sp [=] 1.550 (Q) |
94 [÷] 67 [=] 1.402 (Q) |
Varieties marked by (—) considered by eminent Bot. as sp.
not included in above. (There are 62 of them)
Genera with 5 sp. & up. |
Genera with 4 & under |
33 no of sp. with 9— var) [÷] 560 no' of sp. [=] .058 (Q) |
29 no' of sp. with (— var) 692 no' of sp. [=] .0431 .041 (Q) |
33 [+] 29 [=] 62 |
|
Proportion of vars. to sp.
|
35 vars with (—) [÷] 29 sp. with (— var) 1.206 (Q) |
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 December, 2025