From Hubert Airy [before 15] July 1872
Summary
Outlines his theory on the origin of existing orders of leaf arrangement. Believes spiral and whorled orders have evolved from a primitive distichous arrangement. These arrangements permit a compact bud form of small surface area that can withstand external changes in temperature, and in particular can tolerate frost.
Author: | Hubert Airy |
Addressee: | Charles Robert Darwin |
Date: | [before 15] July 1872 |
Classmark: | DAR 159: 16 |
Letter no: | DCP-LETT-8412 |
Document type
letter | (1) |
Author
Airy, Hubert | (1) |
Addressee
Darwin, C. R. | (1) |
Correspondent
Airy, Hubert | (1) |
Darwin, C. R. | (1) |