Observation on morphology of Primula ovarium sent for DO’s use.
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Observation on morphology of Primula ovarium sent for DO’s use.
Has been looking at separation of sexes in poplars.
Interested in reversion.
Does not understand all CD said on inheritance.
JDH now remembers that Origin was "published" some time before it was "distributed" and therefore appeared prior to his own essay [see also 2478].
Impossible to say whether some Dipterocarpaceae survived a cold period or have developed since.
Thanks for potatoes, which may be useful in crossing.
Germination of seeds in earth on partridge’s foot.
Enthusiastic about JS’s work on Passiflora self-incompatibility.
CD quotes JS on rostellar pollen germination [in "Fertilisation of orchids", Collected papers 2: 77–8]. H. Crüger attributes it to ants’ carrying stigmatic secretion to pollen.
Homomorphic cowslip seedlings are, sadly, showing variation.
No summary available.
Encloses a dialogue on species from a New Zealand newspaper [S. Butler’s First dialogue on evolution, from the Christchurch Press].