To Asa Gray 20 March [1863]
Summary
Discusses the meaning of C. K. Sprengel’s term "dichogamy". Dichogamous plants are functionally monoecious; Primula is functionally dioecious.
Reports Hermann Crüger’s observations of Cattleya and of bees pollinating Catasetum. Crüger will observe Melastomataceae.
Has built a hothouse.
Fears Amsinckia cannot be dimorphic.
Ill health slows his work on Variation.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 20 Mar [1863] |
| Classmark: | Gray Herbarium of Harvard University (58) |
| Letter no: | DCP-LETT-4053 |
Matches: 1 hit
- … 10–20 June [1862] and 26[–7] November [1862] , and letters from Asa Gray , 18–19 August 1862 and 29 December 1862 ). Gray evidently discussed Bates 1861 in a letter to CD written on 9 February 1863 that has not been found; CD quoted Gray’s comments in a letter to Henry Walter Bates of 4 March [1863] . Bates sent a copy of his paper to Gray in January, after CD had persuaded Gray to attempt to have it reviewed in the American Journal of Science and Arts , of which he was one of the contributing editors (see letter to H. W. Bates, 12 …
