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DCP-LETT-4055

From:
John Scott
To:
Charles Robert Darwin
Date:
21 Mar [1863]
Source of text:
DAR 177: 85
Summary:

Thanks for CD’s answers on Passiflora

and Asa Gray review.

Has observed gradation of sterility in Oncidium species.

Has observed rostellar germination and fertilisation in Laelia. The latter was prevented in Bletia by covering the stigma with plaster of Paris.

Gongora atropurpurea capsules are swelling.

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Darwin Correspondence Project
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