RECORD: Darwin, C. R. 1-27.08.1862. [diagrams of pollen from differently-styled stamens of Lythrum]. CUL-DAR27.2.B24-B32,B32bis. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed and edited by John van Wyhe 7.2025. 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.
Darwin excised various portions and annotated others.
B24
Aug 11 1862
[sketch]
Long stamens of Long styled Lythrum
Short stamens of Short-styled Lythrum.
B25
Aug 27 62
[sketch]
Long stamens of Long pistilled Lythrum.
Short stamens of long styled
(glass with a ledge)
Long stamens of Long styled L.
B26
Aug 27 62
[sketch]
Long stamens of Long pistilled styled Lythrum.
(with no rim on glass)
Short stamens of short styled Lythrum
B27
Aug 11 1862.
C
[sketch]
Long stamen pollen of Long styled L anther more open than in other two beginning to whither — strongest powered — soaked 4 or 5 min.
Short of pollen from other
B28
Aug 27 62)
[sketch]
Short stamens of long styled Lythrum
(glass without rim)
Short stamens of middle styled.
B29
Aug 14
[sketch]
long stamen pollen of long styled Lythrum
soaked two minutes - been gathered two days
a well opened fl. — strongest power
long stamen pollen of Long styled L- strong
B30
Aug 14
[sketch]
Short sh. sh. styled
one minute in water
Long st. of do
B30v
Lythrum
B31
Aug 9 1862
B
[sketch]
Long stamen's pollen of S. pistilled Lythrum after soaking &c anthers not opening
Long stamens of Short styled L. after soaking &c — anthers just opening
strongest power - plant kept same time as A
Short stamen pollen of L. styled Lythrum &c
B32
Aug 9 1862
A
[sketch]
pollen of short stamen of m style Lythrum
anthers just open — pollen soaked from 3-4 minutes in water
under strongest power — flowers have been kept 3 or 4 days but not whithered
Cam. lucida
pollen of long stamen, do —
of long stamens of ditto
ditto—
ditto—
B32v
[sketch]
B32v
Drawn Cam. Lucida. Aug 1. 62
The measurings by the micrometer seem unequal —and make it more difficult to judge of the sizes
[sketch]
Short stamen's pollen from same flower under same power—
Micrometer lines
Long stamens pollen from Long styled Lythrum.
Lythrum — open flower —anther valves just beginning to open.
under strongest object glass and eye piece
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 3 July, 2025