RECORD: Darwin, C. R. n.d. Limnanthemum Indicum / Draft of Orchids, p. 162. CUL-DAR110.B9-B10. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. RN1

NOTE: 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). See record in the Darwin Online manuscript catalogue, enter its Identifier here.

The text of the draft corresponds to Orchids, p. 162.


[9]

Limnanthemum Indicum 2. forms described by Thwaites ─ spec. allied to [illeg] bean dry & in spirit─

I have examined only 2 flowers in Spirits

Long-styled with style about twice as long as in short-styled; in long-styled to foliaceous stigma is larger, not so much folded together with stigmatic papillæ rather more protuberant on edges.─ In the long-styled filaments of stamens about half as long as in short-styled; & anther itself smaller:

I fancy pollen in short-styled short anther ⸮ / in long-styled is rather larger ─ see Thwaites note about same shape & ovule equally numerous in both forms.─

Examine pollen out of dry flowers in cupboard & again in spirit. Rexamine all above statements.─

[Forms of flowers, p. 116]

[10]

Limnanthemum Indicum

long-styled ─ long style very much longer & thinner than in short-styled

Stigma seems more foliaceous in long-styled

pollen of short-styled 7-8

─ of long-styled ab 5-6

about long 6 short 7

long-styled is to short-styled in length as 14 to 5 breadth 3 3 to 5

Say only grains certainly larger short-styled

Length 280 long-styled ─ 14/5 breadth = 30/50

2nd [illeg] 210-70 ─ 3/1

In Menyanthes short-styled seem to be larger anther

[10v]

[Top of page excised]

not singular

orifice.

If a thick needle be injected into the mouth of the nectary (fig. A) & then withdrawn, the viscid disc will surely be withdrawn, bearing with it the elegant fan of radiating pollen-masses. These undergo no change in position. but if the needle be now inserted into the nectary of another flower (fig. C.) the ends of the pollen-masses necessarily strike necessarily hit the upper slope surface & the laterally sloping sides of the rostellum, & glancing off


Return to homepage

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 27 April, 2023