From:
William Cecil (Bill) Marshall
To:
Charles Robert Darwin
Date:
30 Aug [1874]
Source of text:
DAR 58.1: 125–6
Summary:
Sends CD a box of Pinguicula leaves.
Contributor:
Darwin Correspondence Project
Sends CD a box of Pinguicula leaves.
Glad to hear about sticky fluid on leaves. WCM need not bother to count leaves.
Utricularia catch freshwater Crustaceans, which cannot be digested and rot in the bladders. CD is interested to identify any substance produced in the putrefaction before it is resolved into gases and salts of ammonia. He has reason to believe that the plant absorbs such products.