RECORD: Darwin, C. R. n.d. List of genera out of the Manual which have 2 or more species with vars (omitting Carex & Salix). CUL-DAR15.2.18. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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.
[18]
List of Genera out of the Manual which have 2 or more species with vars. (omitting Carex & Salix)
No' of species in genera
Lespedeza 6
Galium 10
Silphium 5
Helianthus 16
Nabulus 9
Gentiana 9
Polygonum 20
Agrostis 6
Elymus 4
Panicum 19
10
104 [รท] 10 (10.40
There are 66 genera (carex & salix omitted) so the 10/66 in proportion of genera with 2 or more vars to a spec genus.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 7 September, 2023