i

Movements of Cotyledons Trifolium subterraneum

Nov 21. (Possesses a good pulvinus.)

Only the angle made by lamina observed & this increased rose from 30º above in the day (12.46) to 70' above at 8 40pm that is the leaf rose 40º— The other specimen rose from 38º to 80 that is 42º— The cotyledons were not arched in wards as afterwards

— Nov 23 18.7C— day (1.45 pm) — Left leaf — horizontal, rt leaf 5º below

[sketch] at night 10.26 pm the cotyledons arch in wards} left leaf — 80º above; rt leaf 82 below above

Therefore the left leaf rose 90º & then fell 10º by going inwards to 80º— The right leaf rose 95º & fell 12º 8

Nov 24. 9.15 am. Left leaf 25º above right 35 above

The petioles only observed on night of Nov 23 & morning of Nov 24; they were

Nov 23 night}—left 60 above Right 68 above

Nov 24 morning — 60 ─ 60 ─

Therefore no appreciable movement

Therefore one had sank 8º & the other none by morning (i.e. petioles hardly move)

ii

Trifolium subterraneum Plant II

Nov 21. Cotyledon rose 42 degrees as described on (i)

Nov 23 1.45 pm} left leaf 55º above Rt leaf 55º above

10º. 26' pm — — — 82º —— 80 —

[sketch]

That is the left one rose 35º & fell 8º; right rose 35 & fell 8º 10

Nov 24 9º.15' am 15 above — 10º above

Therefore during night left leaf rose 8º to the vertical & then fell 75º to Rt ; the right leaf rose 10º in the same way till it got vertical & fell 80º

The petiole angles were as follows

Nov 23—1. 45 day 10 20 night Nov 24          9.15 morning

L 70º above 70 above 62 above

R 45 above 55 above 55 above

Nov. 29th 10º 30' a.m, the blades of Cots. of same seedlings as above almost horizontal; at 9º 15' P.m they stood vertical & not inclined inwards.

Look at when 1' leaf developed, on account of slewing of 1 Cotyledon