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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 45º 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. (9º 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 — (9º 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 67º— main petioles held same position, but each leaflet twisted on its axis, so that blade became oblique & I think became a little depressed.)

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