From Daniel Oliver [before 31 March 1864]1
My dear Sir/
I enclose some memoranda of tendril literature which perhaps some day you may look at.2 From analogy, & their relation structurally to Cucurbits I thought the tendrils of Passionflowers must probly. be essentially the same as those of Cucumbers,—but In Modecca (at least one or 2 species) they are axial formations,3 & indeed DeCandolle in Prodromus speaks of them as being Pedunculi axillares. 4 Naudin is very possibly in error or too general in his view of foliar nature of Cucumber-tendrils.5
Yours very sincly | D. O.
Dr. Hooker6 pointed out to me that DeCandolle makes 2 Tribes of Cucurbitaceae differ in their tendrils. Nhandirobeae, cirrhi axillares, pedunculares, & Cucurbiteae,—cirrhi laterales stipulares.7
The foliar nature of the tendril in Modecca (one or two species at least) clearly breaks down:— branches of the tendril bearing flowers & fruit.8
Have you seen ‘Recherches nouvelles sur la cause du mouvement spiral des tiges volubiles’ par M. Isidore Léon.—in ‘Bulletin de la Société Botanique de France’ Vol. V. (351. 610. &c.)?9
If not shall I abstract it for you? | D. O.
Encloses memorandum on tendrils. Nature of tendrils in Modecca.