RECORD: Darwin, William Erasmus. n.d. firstly as to Males' (botanical notes). CUL-DAR186.41. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2023. 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.


[41]

firstly as to males.

difference in size of pollen,

— length of filaments

— length of styles

— size of anthers

— size of papillæ on stigmas

— length of pedicels

As to degrees of ripeness of anthers as to possibility of either setting seed.

be sure that males do not graduate into one another —

also corroborate as to shape of cup.—

see Wheel shaped protuberances in Corolla.

as to difference of abortiveness of ovaries

[42]

is to females.

difference in length of pistils as to difference of papilin, as to difference of rudimentary stamens (mem diff. of petals)

Whether one sets seeds sooner or in greater quantities [illeg] after, as difference in shape of cup,  also of length of pedicel

see whether differences correspond in the males & females of either kind

i.e. diff. of long female to those of long male.

[42v]

as to difference of size of ovary.

as to difference of fertility in each

as to graduation

I red.

II yellow.

III Blue.

IV green.

V red yellow.

VI Red Blue

VII Red Green.

VIII yellow Blue.

IX Blue green.

X Red yellow Blue

XI Red Blue green

XII yellow blue green

XIII Red yellow green

XIV 2 Red yellow

XV 2 yellows


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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 20 November, 2023