From Asa Gray [10–16] June [1863]
Summary
Possible dimorphism in Phlox.
Knows of no U. S. law prohibiting marriage of cousins.
Gives references to papers on phyllotaxy.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | [10–16] June [1863] |
| Classmark: | DAR 165: 136 |
| Letter no: | DCP-LETT-4198 |
