RECORD: Darwin, C. R. 1865-1866. Seedling Red Cowslip (no 28) from Mr Scott almost equal-styled [tables]. CUL-DAR108.104-107. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/).

REVISION HISTORY: Transcribed and edited by John van Wyhe 6.2025. 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).


104

1865

Seedling Red Cowslip (no 28.) from Mr Scott almost equal-styled

A 10 ft. by own pollen black thread

B 10 ft. by pollen of long & short-stylescourse combe white thread

C self-fertilised without aid

Black Thread White Thread

39 [+] 42 [+] 42 [=] 123 [÷] 3 [=] 41.0         

22 [+] 32 [+] 33 [+] 34 [=] 121 [+] 16 [=] 137 [÷] 4 [=] 34.2    121 [÷] 4 [=] 31.2    

38 [+] 32 [+] 38 [+] 26 [+] 31 [+]   [+] 38 [=] 203 [÷] 6 [=] 33.9 34.3 average    All under 14 everywhere omitted.

These 2 plants are conjointly included in above number 10

No (40) with stigma a little below anther, but afterwards thrusted up a truss with stigma a little above anther!

For plants 1866

104v

[calculation]

206 [÷] 6 [=] 34.3

105

1865

Seeding Red Cowslip (equal-styled)

No 27 strictly equal-styled with stamens not top of corlla

By own pollen Black thread flowers

Self-fert

By both pollen of common cowslip

In 1866 very good pods

Then 2 plants are included in above number of flower [illeg] of 19 & 16

No 37 like 27 but had little pollen, much have had colour as soon flowers are self-fertilised.

No 44 strictly equal-styled, not fertilised all self-fertilised

All rather small but apparently good seeds

106

1865

Red Cowslip seedlings from Scott.

No 41 short-styled —all Self-fertilised

See 1866

This plant produced extraordinary long [petals] any other stamen with styles [2 words illeg]

In 1866 average 35.1 for 18 pods

No 39 a short-styled plant (like in 41)

8 ft. by pollen of a long-styled red cowslip Black Th.

8 ft by pollen of long-styled common cowslip White Th.

Self-fertilised

See 1866

(nothing)

No 26 a long-styled plant

8 ft by pollen of short-styled red cowslip Black

8 ft by pollen of short-styled common cowslip white

Self-fertilised These ought to be self-fertilised

See for structure 1866

107

 

By own pollen

Self-fert

by both pollens of common cowslip

10: 7: 196

10 : 286

10. 5. 137

2 plants

10 3: 71

8: 274

16 :12 323

2 plants

[=] 20. 10: 267 average 16.7

9: 407

[=] 26: 17 :460

1

 

10. 356

    average 27.0

1

 

4 .70

 

1  7 Plants

 

[=] 41.: 1393 average 33.98

 

 

  

 

 

 

 

(average 37.0 4/41 with less than 15 seed)

 

 

5/10 with less than 15 seed / If none rejected average is only 20.2

 

4/26 with less than 15 seed If none rejected average 23.5

 

 


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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 11 December, 2025