RECORD: Darwin, C. R. n.d. List of Dicots. added in Supplement. CUL-DAR16.246a-246b. 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.


[246a]

List of Dicots. added in Supplement

Ranunculus 1 sp.

Arabis 1

Thlapsi 1

Gypsophila 1

Epilobium 2

Aciphylla 1

Olearia 1

Ozothamnus 2 sp

Raoulia 1

Senecio 1

Scutellaria 1

3. genera to be added / 13 species

To be added to Genera having vars

Ranunculus 1

Epilobium 2

Aciphylla 1

Olearia 1

Raoulia 1

Senecio X 1

7

[246av]

[page crossed]

Of Dicotyledons in Hookers New Zealand Flora there are 197 genera & 526 species, giving to each genus on average 2.68 species.

Of these genera, there are 60 genera with either one or more species, having 1 or more varieties (which I daresay some [will] consider in more some cases species). These 60 genera include 280 species, ie have on average 4.66 species to genus. — But there are 3 genera, much larger than average most others & very variable viz

Senecio with 19

coprosma 19

veronica 24

[total] 62

Subtracting these (for from chance, it might be thought, if these had vars, it wd vitiate result) the result is 3.84 per genus, which is much above 2.68, (or properly with the 3 genera having 61 subtracted) 2.4.

(Even if Epilobium with 14. var. species be subtracted then the 56 genera will have 3.66 species per genus.—)

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[246b]

Hooker New Zealand Flora. Monocot. Genera having varieties — corrected by Supplement

[List not transcribed]

Hooker New Zealand


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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