Text Online
From:
Darwin, Emma
To:
Darwin, W. E.
Date:
[c. 17 May 1864]
Source of text:
DAR 219.1: 80
Summary:
No summary available.
Contributor:
Darwin Family Letters
No summary available.
No summary available.
CD much obliged for specimen and drawings.
CD would like to see Rhamnus, as an American species is dimorphic.
Sends red cowslip pollen to be measured.
Instructions on measuring pollen of dimorphic plants.
Thanks WED for measuring cowslip pollen. Sends dimorphic flowers.
Experiment instructions.
Discusses WED’s observations on polymorphic flowers.
CD says Meneanthes is now in flower.
Writes of dimorphic plants.
Mentions WED’s extraordinary discovery of some pollen-grains of different sizes. The observations must be followed up.