[19 and 20]

Epinasty

Pinus pinaster

F 150

(same scale no lettering)

Epinastic downwards

(Pinus pinaster; describing movement of young leaf on a young plant in a pot, decr the epinasty, traced on vertical glass under skylight, from 6'45 am Jun 2d to 10.40 P.m June 6th.)

[20v]

4 615

Chap. E 10

they include a considerable number of species belonging to the same genera, some of which were are quite sterile and others quite sterile when thus protected by a net from the access of insects.

List of plants, which when insects are excluded, are quite sterile, or produce, as far as I could judge, less than half the number of seeds produced by unprotected plants.

Passiflora alata, racemosa, cærulea, edulis, laurifolia, and some individuals of P. quadrangularis (Passifloraceæ) are quite sterile: see Variation of Animals and Plants under Domestication Chap XVLL 2nd Edit Vol. II p. 118.

Viola canina (Violaceæ), perfect flowers quite sterile unless fertilised by bees or artificially fertilised.

V. tricolor (do), sets very few and poor capsules.

Reseda odorata (Resedaceæ) some individuals quite sterile.

R. lutea, (do) some individuals produce very few and poor capsules.