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: 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