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From:
Charles Robert Darwin
To:
John Ralfs
Date:
13 July [1874]
Source of text:
American Philosophical Society (Mss.B.D25.443)
Summary:

Discusses specimens of Utricularia.

Mentions JR’s work on desmids [The British Desmidieae [Desmidiae!?] (1848)].

Contributor:
Darwin Correspondence Project