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
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 20 November, 2023