Information on Cyclamen and other plants.

Identification of some plants.

"Bloom".

Thanks for WTT-D’s help.

Burying action of seeds.

"Bloom" on ferns.

The amphicarpic habit.

Thanks for letter. CD now has all the seeds and information he requires.

Value and origin of amphicarpic habit.

Wants Trifolium resupinatum for "bloom" experiment.

Letter from Gaston de Saporta.

Germination of onion.

CD gives his opinion on how the physiological laboratory at Kew should be equipped. It would be a pity if the laboratory were not supplied with as many good instruments as their funds could provide.

Review of Forms of flowers [Nature 17 (1878): 445–7].

CD wants some plants; asks Lynch to raise some Cactaceae for him. Observations on sensitivity and movements of radicle.

WTT-D’s statement perverted by Times [4 May 1878, p. 6, on WTT-D’s Royal Institution lectures on vegetable morphology].

S. H. Vines’s work on light inhibition of Phycomyces hyphae ["The influence of light upon the growth of unicellular organs" (1878), Arb. Bot. Inst. Würzburg 2 (1882): 133–47] suggests heliotropism in green plants is independent of, and more primitive than, photosynthesis.

Heliotropism in aerial roots.

Frank Darwin’s work.

Heliotropism. Requires some plants for experiments.

Germination of Cactaceae; CD wants seeds. Site of action of growth-stimuli.

Will dispatch plants for Kew tomorrow.

Cactus and Cycas seedlings: observations and queries.

Working hard on plant movements.

Movements of cotyledons of Oxalis.

Francis Darwin at Würzburg with Julius Sachs.

Thanks for seeds and plants.

News of Francis and Horace Darwin.

Asks WTT-D to identify a leaf.

Name of plant: Colocasia antiquorum, Schott. = Caladium esculentum, Hort. Vent.

Movement and sensitivity of flower parts; relationship to cross-fertilisation.

Sends specimens.

Sensitive plants.