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Aug. 13/77/

Lupinus Sleep

Do petioles move? ie in beans approach each other —(see Back)

L. Pilosa. The leaf of young plant consists of a stem of 8 to 10 leaflets which during day are horizontal: at night slope downwards vertically or at very high angle.

V examine all the beans

L. pubescens: (The first leaf on most of seedlings (after cotyledon which do not move) has only e leaflets & resemble a closer; the 2d leaf has 5 leaflets. The leaflets lies during day in same horizontal plane & during sleep; but whole petiole rises up so that the 3 or 5 leaflets still all in same plane now stand vertically; & the [tied] & 5-fid leaves, which stand opposite to each other, are pressed almost closely or quite closely against one another: How the older leaves behave I cannot imagine when more than 5 leaflets.

⸮⸮⸮ CC

First imperfect observations

L. nanus (1s leaflet 3) I think the 5 all rise up

L. speciosus do

L. arborius — no sign of sleep.

L. luteus leaflets rise up the longer ones generally standing vertically, the shorter inclined & I do not doubt petioles rise up. [sketch]

L. 4 — polyphyllus no sleep

L. mirabilis, the whole star of leaves apparently becomes highly inclined, but whether due mainly to movement of petiole or leaflet I know not — marked 3 with petiole perpendicular & north in the position