From Robert Caspary [after 9 June 1866]
Summary
Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].
Author: | Johann Xaver Robert (Robert) Caspary |
Addressee: | Charles Robert Darwin |
Date: | [after 9 June 1866] |
Classmark: | DAR 109: A81; DAR 111: B45, B48b, B48c |
Letter no: | DCP-LETT-10344 |