[17]

Caladium

[datasheet 22-24 not transcribed]

After 8° each morning fell & fell on one day till 4° P.m & on the other day till only 10 a.m & then on both days nn [Thursday] till 7 or 9° P.m & then fell & so continued to fall all night only slightly zig-zag ascending & descending lines nearly coincide

[Movement in plants, p. 390]

[17v]

52 663

Chap. E 10

expected that plants having their flowers thus peculiarly constructed sh would require to be crossed than ordinary and sh would thus profit in a greater degree by the process than ordinary or simple flowers; but this does not seem to hold good. Thus Tropaeolum minus has a long nectary and an irregular corolla, whilst Limnanthes douglasii has a regular flower and no proper nectary, yet the crossed seedlings of both species are to the self-fertilised in height as 100 to 79.

Salvia coccinea has an irregular corolla, with a curious apparatus by which insects depress the stamens, while the flowers of Ipomœa are regular; and the crossed seedlings of the former are in height to the self-fertilised as 100 to 76, whilst those of the Ipomœa are as 100 to 77. Fagopyrum is dimorphic, and Anagallis collina is non-dimorphic, and the crossed seedlings of both are in height to the self-fertilised as 100 to 69. A flower may, however, be be adapted to certain kinds of insects, independently of its structure, by secreting nectar particularly attractive to them and