Has been copying out references from Natural History Review [possibly D. Oliver, "The structure of the stem in dicotyledons; being references to the literature of the subject", Nat. Hist. Rev. n.s. 2 (1862): 298–329].
Suggests DO study high incidence of separate sexes in freshwater plants.
Having trouble understanding laws of phyllotaxy in order to grasp Hugh Falconer’s objections.
L. C. Treviranus on Primula [see 3980] misses the "prettiness" of the adaptations.
John Scott says P. scotica is never dimorphic.
Observation on morphology of Primula ovarium sent for DO’s use.
Nectar secretion in Edwardsia. Could the stamen protect stigma?
Sends monstrous Primula with three pistils.
Had never heard of Robert Caspary, but what DO thinks is the placenta could be a whorl of pistils without stigmas.
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?
Thanks for information on Primula ovules. From what DO says the pollen-tubes ought to find their way to the micropyle.
Sends F. Hildebrand’s paper for publication by the Linnean Society or in Natural History Review.
Recommends Wyman’s short notice ["Report on Dr Jeffries Wyman’s experiment on the cause of contractility in vegetable tissues"] in the Proceedings of the American Academy of Arts and Sciences 3 (1852–7): 167.
Fertile flowers of violets, except Viola tricolor, require insect visits.
No summary available.