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Trifolium strictum (S. European)

1878

Oct. 30 Cots first open at noon & horizontal: at 10° 20' P.m. formed about right angle together, so cd. hardly be said to be asleep. First day days of life [rose] 45°

one of this age marked with pin.—

(Summit of Petiole constricted, white, formed of shorter cells than below.) ie a Pulvinus.

The following refers to the seedling born on Oct 30' & others born on November 1

Nov 4th 10° 15' P.m bases of Cots in close contact & standing almost vertically but with apices upper portions deflected — Petioles greatly increased thus → [sketch]

[Right margin:] Nov. 17th. Cots still raised at night

After 2 or 3 days old the Cots are more acted on & stand more vertically than they do the first day & by this time the petioles have grown considerably

Nov 8' 10' P.m — cots in same state, they stand vertically, but with upper part reflexed— a single true leaf formed, (with 2 side folded together) & which stands outside the joined Cots

Nov. 11th 10° 15. Cot. still raised, a small true leaf, hairy, now expanded (in bud state folded like closed Dionæa) & it is very curious that out of the 4 seedlings old enough to have formed true leaf, 3 of them have the 2 Cots not facing each other, but one bent at wide →

[62v]

wide angle, even rectangle to other, & the true leaf places upper surface almost in contact with the one slewed cotyledon! Like Melilotus.— [sketches] b a a

a a the 2 Cots seem from above edge

Edge of true leaf seen from vertically above, I shd have said true leaf rises up perpendicularly —

Both surfaces of the 1st true leaf silvery under water

(It is very important about [illeg] [torsion] of petiole of of cotyledon, unique case strengthens belief that rising true sleep)

Nov. 13th the blade of single true leaf in during day lies in plane parallel to line joining the two cots— or at rt rt angle to the plane of either Cot; but at night when it rises it twists somewhat to one side so that as to face to left, the young true leaf being turned at on the side of the observer. &

The left cot is twisted at right angles— or almost right angle to the opposite cot, which holds its in day day position, except that it stands upright— The twisting is effected by the twisting of whole petiole, which is concave in the upper or inner side. This is obvious when seedling viewed laterally, for in right petiole the inner concave side of the right petiole cannot be seen, whilst of the left petiole the whole concavity is visible: I do not think that pulvinus is twisted.

It was the left Cot. in all the 3 specimens, as yet mature enough to undergo this stronger movement. Wonderfully like true leaflet of Melilotus.

[in margin:] The torsion of petiole, apparently also shown by lines of cells, not moving straight down its length:

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Trifolium strictum

Nov. 17th The oldest seedlings have now blade of true leaf rather above Cot, but is still turned a little obliquely & arches over the slightly oblique left. Cot.

Two other seedlings are now old enough to (included in Franks observation show that true leaf turns to left.