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To Daniel Oliver [12 April 1863]
Summary
Working on monstrous Primula. Is ovule anatropous as Asa Gray says, or amphitropous? Does he know natural path of pollen tubes in Primula. Can the tube enter the ovule by the chalaza?
| Author: | Charles Robert Darwin |
| Addressee: | Daniel Oliver |
| Date: | [12 Apr 1863] |
| Classmark: | DAR 261.10: 46 (EH 88206029) |
| Letter no: | DCP-LETT-4083 |
