RECORD: Darwin, C. R. 1863-1865. Fertility of common Cowslip. CUL-DAR108.75. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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 volumes CUL-DAR108-111 contain material for Darwin's book Forms of flowers (1877).
[75]
In 1865. 8 sh. styled flowers were Het. fert. & produced 3 pods with 3/8
52 58 64 seed!
12 pods of long & short-styled plants Cowslip Polyan growing naturally in border gave average of 38.7 seed.
Short-styled 8 good pods Hom. fert gave only average of 9.3 seeds
Three long-styled gave 22 pods Hom. fert. with average of 19.1 seed; by excluding 2 poor pods average rises to 20.2.
1864 Heteromorphic flower
Short-styled— Het. Union. 7 pods 42.1
― Hom. 10 pods 20.3
Long-styled Het. 4 pods 40.7
Short styled Hom. 5. — 20.2
1863 Long-styled Het. — 38.7
Fertility of common Cowslip
[75]
[calculations not transcribed]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 8 January, 2023