The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1881]. Celery (Apium) / Butter-cup. CUL-DAR62.53. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 5.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR62 contains for Darwin's papers 'The action of carbonate of ammonia on the roots of certain plants', 1882, F1800 and 'The action of carbonate of ammonia on chlorophyll-bodies', 1882, F1801.

[53]

Celery (Apium.) after about 20° in 4 to 1000, some granular matter in some outer cells, & here & there a few aggregated together — I think granular cells alternate with rows without granular matter, but am not at all sure.

Three fresh rootlets for 24° in 7 to 1000 — no granular or agg. matter in the younger roots, but in one rather older & thicker root some spheres of a bluish colour in the deeper cells.— I noticed before that here & there streaks of blue in roots — case like that of stolons & young shoots of Mercurialis perennis; but the blue in latter case also appears in stump projecting above plain water.

Butter-cup in sol. of 4 to 1000 for 21°— near tips brown matter & minute hyaline spheres in some exterior cells. — no regular alternation of granular matter —

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)