RECORD: Darwin, C. R. n.d. Elastic threads of O. mascula are viscid. CUL-DAR70.164. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2021. 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-DAR70 contains material for Darwin's book Orchids (2d ed. 1877).
[164]
Elastic threads of O. mascula are viscid. In one pollinium I found 153 packet; a small packet contained 85 grain each with 4 granules: 90 grains would be under mark on average.
Put in note at end of Ch. VII. say estimated withot any extreme case as about 6200
{153 packets [x] 90 grains [=] 13770 [x] 4 granules [=] 55080 [x] 2 pollinia [=] 11,0160 granules in one anther
I believe I might say 100 grains in each packet safely
see over
[164v]
15300 [x] 4 granules [=] 61200 [x] 2 pollinia [=] 12, 2, 400 granules
each capable of emitting pollen tube
[4 words illeg] 120,000
I doubt whether a flower ever gets all pollens of one anther.
Sq 122 [3 words illeg]
)120,000
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022