[294]

Sarracenia purpured [purpurea]

Circumnutation of young Pitcher

A young leaf, with the pitcher-part expanded bladder swollen, but with the hood frond not open.   8 1/2 inches in height, had glass filament fixed transversely across apex & traced on vertical glass under skylight — (Apex of leaf 20 inches from glass, so tracing immensely magnified this applies only to 3d when Tracing more magnified.) [sketch]

See Tracing on July 2d, no doubt circumnutates.

(On July 3d put pot further off (viz 20 inches) & this day's Tracing better (engrave this alone) from 8º a.m. on 3d to 10º 15 a.m on 4th. There can be no doubt circumnutates though though on very small scale.—

(Temp. on 2d  17 1/2  to 18º C. — on 3d 17º C.)