RECORD: Darwin, C. R. 1862. Wild Cowslips in Pots experimented on in greenhouse. CUL-DAR108.70. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 12.2022. RN2

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 volumes CUL-DAR108-111 contain material for Darwin's book Forms of flowers (1877).


[70]

Wild Cowslips in Pots, experimented on in greenhouse in Spring of 1862.

Short-styled — (stick)

0 [+]  all bad seeds [+] 73 [+] 0 [+] 87 [+] 77 [+] 0 sh [+] 0 sh (10 crossed) 12    seven Pods— average 57.3

0 [+] 0 [+] 0 [+] 39 poor seeds [+] sh [+] 0 [+] 17 (10 crossed)   11

50 Blue silk Braid [+] 48 thick red thread or string [+] 40 bad seed white Bobbin. [+] 59 Blue Braid [+] 0 White Bobbin— shaked

(Used in Lythrum paper)

(These were the products of the umbels which did not perish from the heat.)

50 crossed first homomorphically with cowslip & in 24° heterotrophically with polyanthus

48 59. do do do do do

Hybrids Primrose & Cowslips Cowslip by pollen of Primrose

15 very poor seed [+] 7 dos do [+] some all poor & bad [+] 0 do }    white Bobbin    result of homomorphic cross on both long & short styled with pollen of primrose
――

(6 tried) on all the umbels    33 [+] 15 [+] 7 [=] 55 [÷] 5

0 [+] 48 appear pretty good } thick red thread    Result of Hetermorphic cross on both long & short-styled cowslip of pollen of primrose.
――

(6 tried) (on all the umbels)

p. 76 Experiment Book gives record of what was tried.

[70v]

→ What does J. Scott mean by saying that Polyanthus more fertile than Cowslip with Primrose?? See his Paper


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

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