Sends several plants with abortive anthers or bad pollen.
Showing 21–26 of 26 items
Sends several plants with abortive anthers or bad pollen.
Sends Orchis.
Is coming to London.
Wrote to J. B. E. Bornet on CD’s behalf, declining the offer of seeds of Draba. But now Bornet writes that he is sending seeds to CD anyway [see 5592].
Corrects his previous description of the fertilisation of Indigofera.
Thanks for CD’s ["Fertilization of orchids", Collected papers 2: 138–56].
Although Thomas Meehan’s paper ["Variations in Epigaea repens", Proc. Philadelphia Acad. Nat. Sci. (1868): 153–6] shows great variability in this genus, JTM sees a need to qualify the generalisation that there is as much variation in the wild as under domestication. He knows no evidence for a constant proportion between variability in the wild and under cultivation.
Observations on correlation between leaf size and exposure to sun and shade.
Has evidence for two varieties of Ophrys apifera in England, which live in mutually exclusive colonies.
Leaflet variation at the tip of Lathyrus stems.
Sends seeds of Lathyrus and suggests an advantage of climbing plants is to shed their seeds in places secure from animals.
Contrary to F. Delpino, in JTM’s experience Ophrys aranifera is not sterile. However, seed germination is poor.
In a densely overgrown plot Convolvulus sabatius, not normally a twiner, becomes one.
Continues his extensive study on variability in Arbutus, and speculates on selection in fruit shape.