RECORD: Darwin, C. R. n.d. Genera with 5 species & upwards. CUL-DAR16.205. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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-DAR16 contains calculations and tables for Darwin's 'big book' Natural Selection F1583.
(12
Boreau Centre du France
Boreau Centre du France (12
|
Genera with 5 species & upwards |
|
Genera 4 species |
|
Genera with 3, 2, 1 species |
|
Page of MS. |
C.C |
|||||
|
|
|
|
|
|
|
p. 1 |
7 |
18 |
2 |
5 |
2 |
11 |
2. |
4 |
24 |
0 |
0 |
1 |
15 |
3 |
7 |
20 |
0 |
0 |
4 |
17 |
4 |
0 |
1 |
0 |
0 |
2 |
14 |
5 |
5 |
20 |
1 |
4 |
1 |
12 |
6 |
2 |
4 |
0 |
2 |
5 |
16 |
7 |
1 |
13 |
0 |
2 |
5 |
18 |
8 |
9 |
28 |
2 |
4 |
3 |
14 |
9 |
6 |
15 |
0 |
0 |
0 |
5 |
p. 10 |
5 |
13 |
0 |
4 |
4 |
11 |
|
46 |
156 |
5 |
21 |
27 |
134 |
Carex |
0 |
7 |
|
|
5 |
21 |
|
46 |
163 |
|
|
32 |
|
grand total |
5 |
21 |
|
|
|
|
|
27 |
134 |
|
|
|
|
|
78 |
|
|
|
|
|
|
|
|
|
G. Total |
5 |
21 |
|
|
|
|
|
46 |
163 |
|
|
|
|
78 |
318 |
|
Boreau Centre du France (12
|
Genera with 5 species & upwards |
|
Genera 4 species |
|
Genera with 3, 2, 1 species |
|
Page of MS. |
vars & C.C. com'nd |
C.C |
vars & C.C com'd |
vars & C.C. com'd |
C.C. |
|
|
|
|
|
|
|
|
p. 1 |
7 |
18 |
2 |
5 |
2 |
11 |
2. |
4 |
24 |
0 |
0 |
1 |
15 |
3 |
7 |
20 |
0 |
0 |
4 |
17 |
4 |
0 |
1 |
0 |
0 |
2 |
14 |
5 |
5 |
20 |
1 |
4 |
1 |
12 |
6 |
2 |
4 |
0 |
2 |
5 |
16 |
7 |
1 |
13 |
0 |
2 |
5 |
18 |
8 |
9 |
28 |
2 |
4 |
3 |
14 |
9 |
6 |
15 |
0 |
0 |
0 |
5 |
p. 10 |
5 |
13 |
0 |
4 |
4 |
11 |
|
46 |
156 |
5 |
21 |
27 |
134 |
Carex |
0 |
7 |
|
|
5 |
21 |
|
46 |
163 |
|
|
32 |
155 |
grand total |
5 |
21 |
|
|
|
|
|
27 |
134 |
|
|
|
|
|
78 |
311 |
|
|
|
|
|
|
|
|
G. Total |
5 |
21 |
|
|
|
|
|
46 |
163 |
|
|
|
|
78 |
318 |
|
Therefore in large genera 156/679 are common = 229/1000
In the small genera, of 3, 2, & 1 the very common or C.C. species are 134/625 = 214/1000
In genera with 4 species 21/116 = 181/1000
too few for average
Omitting cultivated plants & the 4 genera, there are 1420 species of which 311 are very common = 219/1000
(This makes me put no confidence in foregoing results; it does not seem that C.C. do occur more in the larger genera.—)
1420 total species [-] 189 total species presenting vars [=] 1231 — total species not presenting vars.
233 — C.C. & not having vars /1231 total species not having vars = 189/1000
311 total species marked C.C [-] 78 species C.C. & having vars [=] 233 C.C. not having vars
78 species C.C. & having vars /189 species having vars = 412/100
/over
[12v]
or we may say of the total 1420 species 311 are C.C. = 311/1420 = 219/1000
Whereas of the 189 species, having vars, 78 are C.C. or very common = 78/189 = 412/1000
This clearly shows that the very common species most often present varieties — or the most variable species are most common.
Boreau, Alexandre. 1840. Flore du centre de la France; ou description des plantes qui croissent spontanément dans la région centrale de la France, et de celles qui y sont cultivées en grand, avec l'analyse des genres et des espèces. 2 vols. in 1. Paris: Roret.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 14 December, 2025