[25]

Nov. 25' 1879. Cucurbita ovifera (Sachs' curvature)

10 30' a.m

4 seeds which had germinated in different positions, most of them flat on ground, were pinned with radicle perpendicularly down & parallel to pin.

4° 30' P.m. 2 of them with radicle now inclined under seed owing to bending of young Hypocotyl. — So that Sachs curvature (ie epinasty) conquers geotropism, as in case of Bean. —

"I may say if pinned through cotyledon which are then fixed at early age with to lid of jar, then the bending of the hypocotyl makes the radicle — in a few hours highly inclined".

Nov. 26' 8 a.m. seeds placed edgeways & horizontally = from arch & tuft head as at B.—

[sketches]

Judging from suspended seeds I think much will take place only in plane at right angle to plane of flat seed. & which is the natural position of dependent cotyledons.

27th 8° a.m put big pins parallel to radicles.

[25v]

Seed placed stood when radicle germinating in peat, with radicles perpendicularly down— hypocotyl short & hardly developed upright & Cotyledon, all in position ultimately attained — yet h arched & makes close to Cotyledons & thus rises rose to surface in doing this it generally turned the seed upside down so that end whence radicle protruded was now vertically upwards, & some of the cotyledons hypocty had partially straightened themselves. — In compact earth the seed wd hardly be able to turn upside down & thence I suppose Cots might be it is doubtful whether cots cd be withdrawn. In 2 some cases the peat was so compact that seed had been turned only sufficiently to be placed horizontally, & cotyledons, now be bent were in act of withdrawing.—

The bending always takes place to side where at base of hypocoty from Sachs curvature there is a transverse crest or sometime a double knob.