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Cassia mimosoides — syringed like last; [movement] of leaflets directed themselves forward but did not touch each other, so that there was furrow between as in Mimosa prostrata — I do not know whether they become inverted — Sleep in the same fashion, so leaflets are little above peduncle!

All the leaflets were not equally affected; I cannot understand good.—

Shaking plant causes leaflets to close a little

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Cassia pubescens: a widely different looking sp. 2 long leaves, (each with 3 pairs of leaflets) when awake formed rt  ∟ to each each other on opposite side of stem or at about 45° with axis; & 2 terminal leaflets at right angles to them & a little divergent from each other

Both side wetted & no silver: the upper s. not well wetted, but this does not depend on wax, for after ether equally & partially dry after immersion.

When going to sleep tall long leaves rise up towards axes of stem; the 2 terminal & side leaflets approach each other so as to overlap & bend downwards; so that they hang nearly vertically down; but they do not become reversed; the upper surfaces face a little above the horizon. No, they now show some little tendency to inversion for the upper face of each leaf has become inclined towards each other, so that the 2 faces form about a right angles to each other. (9° 30' the long petioles of the leaves now stand up vertically; & the leaflets hang down almost but otherwise as described.

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Cassia calliantha 1873

with numerous leaflets like a mimosa — opposite leaves nearly in same plane & horizontal— leaflets nearly horizontal & directed a little towards apex of leaf— very imperfectly silvery on both sides, & least on under side I think — a very short agitation in water cause both sides to be wetted.

The leaflets move down down & forward, ie towards apex of leaf & become at the same time inverted as in C. corymbosa (photographed) & in C. lævigata, which sleeps just like C. corymbosa

Plants very young with only 4 leaves & so perhaps not perfect action — (9° 40' the leaves have risen very little or not at all, but the leaflet back of the leaflets hang down vertically, though directed towards apex of the leaf — The terminal leaflets are not, or very little, so as to point towards base of leaf, as in the common species.—

(July 18th syringed with water at 67°— main petioles held same position, but each leaflet twisted on its axis, so that blade became oblique & I think became a little depressed.)