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Gray, Asa in addressee 
1870-1879::1875 in date 
Harvard University, Archives of the Gray Herbarium in repository 
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From:
Charles Robert Darwin
To:
Asa Gray
Date:
30 May [1875]
Source of text:
Archives of the Gray Herbarium, Harvard University (121)
Summary:

Wants seeds of Nesaea verticillata for crossing experiments to see whether seedlings from "illegitimate unions" are sterile like true hybrids.

Contributor:
Darwin Correspondence Project