RECORD: Darwin, C. R. n.d. Doubt Monocot. being more difficult to hybridise than Dicot. CUL-DAR205.7.215. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. 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-DAR205.7 contains notes on hybridism, sterility and pigeons.


(2

Doubt Monocot. being more difficult to hybridise than Dicot; as Brown says

Rhod Dauricum & Ponticus have crossed times of flowering very different & size — The wild Crinum near Rio, was a natural cross between an aquatic and wood plant. ⸮ Perhaps note as these crosses were sterile

— I think 2 Loasa; a shrubby & climbing plant in Erythrina have crossed. The foregoing facts much opposed to Constitution being governing law — Work out constitutions & in animals゠ Ask whether lowland & Alpine plants have crossed?

Natal Gladiolus will not cross with S. Africa species — now will a Half-bred do cross with do — Here country appears to come in—

Hippeastrum self-impregnated & crossed, the former

[text excised] ved this personally

[The bottom portion of this note is at CUL-DAR205.7.213:]

scapes always die. — Say he [text excised]

Herbert

The hybrids from 2 Loasas, have so continued true with little variation for several generations. Thinks there is more & more there is a tendency


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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 10 May, 2023