RECORD: Darwin, C. R. [1881].12.29. Roots / Solanum. CUL-DAR62.76. 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.

[76]

Roots

Dec. 29th Solanum (Empress) greater hardy sp which produces large berry woody greenhouse young plant — 4 roots were immersed for 20 1/2° 21° in sol of 4 to 1000— & in one of these [illeg] In cells lying immediately beneath epidermis for some distance & some way up root [cut visible] minute aggregation mass only of some granular & sometimes hyaline brown matter. — Moreover In many of isolated elongated cells near vascular bundle isolated dark brown, opake, fine granular matter in — many of these cells — These rootlets were merely split longitudinally — These similar roots kept for 20 1/2° in water similarly split & none of the above phenomena. — Innumerable starch grains in all cases.

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

File last updated 22 July, 2023