[21]

Oct 28th

Lathyrus aphaca. t.s sensitive on all sides, perhaps most on under side. near curled curved tip — Arise alternately on opposite side of axis, & sweep from side to side — Tendril straight thin simple.=

Stipules are closed in pair on summit of plant. The Tendril forces it way out whilst stipules closed. & are sensitive & axis moves. My observations to day made on tendril, of which the stipules had half opened. The tendril itself had no movement or very slight, whereas the summit of plant moved in ellipse (reverse of hand of watch) in nearly 5°. The tendril is rather long & projecting out at 45° from axis is carried about by movement of axis.—

The above ellipse not perfectly completed in about 5°: this second ellipse, had longer axis at 45° to longer axis of 1st. ellipse— (3) [sketch]

[21v]

Oct 29th L. aphaca— At first, tendril at 45° to axis, & then becomes horizontal & ultimately inclined downwards. Last night, t. moved half ellipse at ∟' to first & long ellipse see (3) in diagram.— Dotted line, line of movement today. —

The tendrils have no independent movement certainly!!!—

After being kept 2 or 3 days in middle of room to N. (gloomy weather) only movement to & from light— revolving movement destroyed — Dutrochet says bright light does same

[21b]

Oct 19th. 63

Tendrils.

C. flammula— the peduncle which curled when I left home [14 October, to London], are still permanently curved — compare to sense of Animals.— touch & corresponding movements.

Cobæa —scanden— in each branchlet the hooks point to all points of compass—

Begonia unguis— tendrils drop off. — not more use than thorn to a bramble.—

Galium aparine & Lathyrus nissolia no movement— might be expected in last, as leaves apparently modified tendrils.

Tropæolum Canariense young plant, a foot or 2 high— an old plant in autumn, though in hot-house movement far slower —