analogous variation in Cucurbitæ, ii. [349];
acclimatisation of Cucurbitaceæ, ii. [313];
production of fruit by sterile hybrid Cucurbitaceæ, ii. [172];
on the melon, i. 360, ii. [108], [275];
incapacity of the cucumber to cross with other species, i. 359.
Nectarine, i. 336-344;
derived from the peach, i. 337, 339-342;
hybrids of, i. 339;
persistency of characters in seedling, i. 340;
origin of, ibid.;