3. Perianth wholly free from the ovary.
Pistils numerous or few in a head or ring. [Alismaceæ], [553]
Pistil one, compound (cells or placentæ mostly 3).
Perianth not glumaceous or chaffy; flowers not in dense heads.
Stamens 6 (in Maianthemum 4), similar and perfect.
Scurfy-leaved epiphyte; seeds hairy-tufted. [Bromeliaceæ], [511]
Marsh herbs; carpels nearly distinct or separating closed from the axis; seed without albumen. Juncagineæ, in [Naiadaceæ], [557]
Terrestrial, not rush-like; seeds with albumen.
Perianth of similar divisions or lobes, mostly colored. [Liliaceæ], [517]
Perianth of 3 foliaceous and green sepals and 3 colored withering-persistent petals. [Trillium] in [Liliaceæ], [517]