RECORD: Darwin, C. R. n.d. There are 84 genera common to Europe. CUL-DAR50.E55-E56. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. 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.
[E55]
(1
There are 84 genera common to Europe & marked x = extra-tropical or chiefly so. – Could there be any (certainly few I presume) genera added to these, equally extratropical, but found only in Asia or North America, for they would in fact come into same category.
Haloragis, Microtis, &c see list [illeg]
These 84 genera (or more, if these are N. Asiatic or N. American genera) contain how many species in Australia? [insertion:] I have added the numbers
And of such species in these 84 genera, how many are endemic to Australia & how many common to Europe (& N. Asia or N. America)?
[insertion:] I have added the numbers (approx) of each genus
[insertion:] These are in the European lists of species!
This would be very interesting to me, as it would show how many species had probably been there manufactured since Glacial Epoch.
[E55v]
It would be interesting to see whether same genera or orders have [few words illeg] & Australia. What does [illeg] India mean
Is not the extra-tropical resemblance of Cape & SW Australia due to Glacial epoch as shown by character of Abyssinian Flora & on W. African south?
[E56]
(2
Of the species included in the 84 genera how many are annual? Is it a large proportion compared to the proportion in Europe? This bears on passage of the Tropics: but perhaps it would be best to take only the species which are terrestrial.
A great proportion of both are herbaceous weeds, but few are true annuals. Consult Loudon in which all will be found
In some list of species common to (Victoria & Tasmania) & Europe. Are those marked * lowland Indian plants; I suppose so. It would greatly add to interest of list to me, if some would append [symbol] for annual & some mark for aquatic & sub-aquatic. Was it not very difficult to eliminate the introduced plants? yes mostly
No I have very few dubious & have marked all that are possibly introduced
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022