Part 14 (1/2)

Anthers extrorse, opening lengthwise. IRIDACEae, 513

Stamens 6; flowers usually on a scape from a bulb.

AMARYLLIDACEae, 515

[2.] _Perianth adherent only to the base or lower half of the ovary._

Perianth woolly or roughish-mealy; leaves often equitant.

HaeMODORACEae, 512

Perianth smooth; the leaves gra.s.s-like.

Stenanthium, etc., in LILIACEae, 517

[3.] _Perianth wholly free from the ovary._

Pistils numerous or few in a head or ring. ALISMACEae, 553

Pistil one, compound (cells or placentae 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. BROMELIACEae, 511

Marsh herbs; carpels nearly distinct or separating closed from the axis; seed without alb.u.men. Juncagineae, in NAIADACEae, 557

Terrestrial, not rush-like; seeds with alb.u.men.

Perianth of similar divisions or lobes, mostly colored.

LILIACEae, 517

Perianth of 3 foliaceous and green sepals and 3 colored withering-persistent petals. Trillium in LILIACEae, 517

Perianth of 3 persistent green sepals, and 3 ephemeral deliquescent petals. COMMELINACEae, 538

Stamens 6, dissimilar, or only three with perfect anthers.

Sepals 3, herbaceous; ephemeral petals 3, unequal.

COMMELINACEae, 538

Perianth tubular, 6-lobed. PONTEDERIACEae, 535

Stamens 3, similar. Moss-like aquatic. MAYACEae, 537

Perianth wholly glumaceous, of 6 similar divisions. JUNCACEae, 539

Perianth partly glumaceous or chaff-like; flowers in very dense heads. Rush-like or aquatic.

Flowers perfect; inner perianth of three yellow petals; perfect stamens and plumose sterile filaments each 3; pod 1-celled, many-seeded on 3 parietal placentae. XYRIDACEae, 536