Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].
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Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].
Ovules of males of two forms [of Rhamnus catharticus?] are abortive and both females have incomplete stamens.
Sends some specimens of three kinds of buckthorn.
He is not grieved at CD’s omissions of his [JDH’s] work [from Origin, 4th ed.]. It proves nothing – claims only to be illustration of using CD’s methods.
In London for the Botanical Congress; regrets missing CD.
Lyell and CD have mistaken H. Lecoq’s position on glaciers. He has not denied the possibility of a glacial period, only that decreased temperature is needed for their extension.
Recommends F. J. Ruprecht on vegetable detritus in the black earth chernozem of Russia.
Sends blooms of Cytisus purpureus-elongatus.
Identifies a plant.
CD will not find Hermann Schacht’s Lehrbuch [der Anatomie und Physiologie der Gewächse (1856–9)] at the Linnean Society Library.
Sends proofs [of "On hybridization among plants", Pop. Sci. Rev. 5 (1866): 304–13].
Regrets delay in returning CD’s books.
Encourages CD to make "disparaging remarks".
Thanks for criticism of proofs of his paper [see 5117].
Not sure whether CD believes in reversion and would like a positive statement as this is the one point C. V. Naudin especially observed. Naudin offers his remarks on ovules as a matter to be proved ["Nouvelles recherches sur l’hybridité", Nouv. Arch. Mus. Hist. Nat. 1 (1865): 25–176].
Will take earlier train to Down.
In response to CD’s request for bud-sports, he sends a piece of a fern-leaved beech.
Has altered paper according to CD’s comments.
Returns books.
Thinks Rhamnus is a case of a dimorphic plant that has become dioecious.
"It [Rhamnus catharticus?] is certainly a case of dimorphic become dioecious."
Reports on his health.
Discusses a surveying expedition under Richard Charles Mayne on which his son will be Second Lieutenant; hopes to arrange for them to excavate some bones in the Falklands.
Sends flowers of the differing kinds [of Rhamnus?] with observations.
He has had a great struggle with Buckthorn, and would like CD to see the measurements some time.