From Asa Gray [2 June 1862]1
Long-styled Houstonia has shorter, stouter, & far more hispid stigmas—smaller anthers, & smaller pollen than short styled,—evidently a step towards the separation of the sexes.2
I am kept very hard at work all this month in College, &c— But after 6th. July, I can do something.3
Viola (V. cucullata, & V. lanceolata) is very pretty for cross-fertilizing.
Ever Yours | A. Gray
Do I bore you, with these scattering notes?
I jot things down here—keeping no other records, & send them off to you.
I enclose some flower-buds of Arethusa—.4 You can soak them.
Discusses heterostyly in Houstonia.
Please cite as
Darwin Correspondence Project, “Letter no. 3588,” accessed on 27 August 2016, http://www.darwinproject.ac.uk/DCP-LETT-3588