Helmet, the upper sepal of Monkshood is so called.
Helvolous, grayish-yellow.
Hemi- in compounds from the Greek, half; e. g. Hemispherical, &c.
Hemicarp, half-fruit, one carpel of an Umbelliferous plant, [121].
Hemitropous (ovule or seed), nearly same as amphitropous, [123].
Hepta- (in words of Greek origin), seven; as Heptagynous, with seven pistils or styles. Heptamerous, its parts in sevens. Heptandrous, having seven stamens.
Herb, plant not woody, at least above ground.
Herbaceous, of the texture of an herb; not woody, [39].
Herbarium, the botanist's arranged collection of dried plants, [186].
Herborization, [184].