RECORD: Darwin, C. R. n.d. Names / Monocot. CUL-DAR16.213-215. 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-DAR16 contains calculations and tables for Darwin's 'big book' Natural Selection F1583.


[213]

Monocots

[List of names, numbers and calculations not transcribed]

Now out of the 437 genera 132 genera have one or more species (exactly each of these genera has 1.33 species sehr gemein) sehr gemein, & these 132 genera include 517 species, so that each has 132/517 (3.91.

Consequently the remaining genera (437 - 132 =) 305 genera in number, which have not one species "sehr gemein" include (1019 - 517 =) 502 species, & therefore these 305 genera have on average 305/502 (1.64

So that genera which have 1 or more species se sehr gemein include more than double, the number on average, than do those genera which have not one. —

Flora Ratisbonensis

(Naturhistorische Topographie von Regensburg zweiter Band) by Dr. A. E. Fürnrohr. 1839.— (see Decandolle for Families p. 467. worked out same way

Carex 43 omitted

[214]

[List not transcribed]

[214v]

Flora Ratisbonensis

very common species

Old & New M. S.

[215]

Flora Ratisbonensis. see for table old Paper

Summary

Carex alone omitted.—

In genera having 5 4 species & upwards there are 74/377 of sehr gemein species 99/493

In genera with 4 spe: there are 25/116 These omitted

In genera with 3 species & downwards there are 79/526 s. gemein

Now 99/493 = 200/1000

79/526 = 156/1000 Can there be any mistake in Boreau calculation?

Carex sehr gemein 941 956 968 / 3 sehr gemein

43 sp.

983 [-] 940 [=] 43

377 [+] 43 [=] 420

359

493 [+] 43 [=] 536


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 7 September, 2023