[8]

Desmodium Nov 25

[sketch] J joint of large leaflet j — little Leaflet L terminal leaf I leaflet lateral

[measurements not transcribed]

Proximate cause of movement of leaflets of Hedysarum—

They have become aborted for different reasons— in one case of mimosa for want of space; with Hedysarum probably from compaction

The thickness of j joint is between 0.3mm & 0.4mm of J full grown about 1.3mm

Therefore joint of little leaflet nearly as long as the joint of full-grown terminal leaf

[9]

Desmodium average of 2 full grown leaf

[measurements not transcribed]

[9v]

[calculations not transcribed]

[10]

2

M. albida

Average of 3, A, A', A''

[calculations not transcribed]

[11]

Nov 28 M. albida full grown leaves [sketch]

Length measure on the under surface [measurements not transcribed]

Here to joint of little leaf about 1/2 of length of that of big leaves

Leaf II [table not transcribed]

Breadth big leaves about 1 mm

little 0.3 mm

(Relative sizes of Pulvinus)

[12]

1)

Old Plant

Upper pair of leaves

[Figures and measurements not transcribed]

At 6 o'clock therefore the leaf distance has diminished almost as much as it ever does. Whereas the leaves are very far from perpendicular at that time and had not moved & during the interval of time from 5.10 to 6— the leaf angle has not diminished— At 8.30 the leaves have become perpr [perpendicular] and a slight further diminution of leaf distance had taken place— At 10. 25 no change perceptible—

[12v]

Desmodium

[13]

2)

Old Plant

Second pair of leaves

[Figure and measurements not transcribed]

(a) is leaf angle at fr about 5.10 – 5.38 at 8.30 leaves were perpr

Here also the leaf distance began to diminish before the leaves were perpr

[14]

3

Tall young Plant

Second pair of Leaves

[Figure and measurements not transcribed]

Again leaf distance begins to diminish before leaves are perpendicular—

At 5.46 the leaf angle was about (a); so that between 6.46 & 8.30 the leaf sunk through an angle (a) while the leaf distance altered very little; its great change have taken place by 5.10—

[15]

4)

Tall young Plant

First pair of Leaves {CROOKED}

[Figure and measurements not transcribed]

The only use of this series is to show that the leaf distance begins to diminish before the leaves become perpendicular—

[16]

5)

Small young Plant

Second pair of Leaves

{first pair not old enough to measure}

[Figure and measurements not transcribed]

Leaf distance begins to diminish before leaves are perpendicular. The main greater part of the diminution having taken place by 5.25

[16v]

(39

Desmodium

Sleep— movements of main Petioles