30. KEY AND FLORA 
but only 1 cell ovule-bearing; the 1-seeded utricle inclosed 
by the base of the perianth.* 
1. P. cordata L. PrckereEL WEED. Stem stout, erect, 2-4 ft. high. 
Leaves long, from heart-shaped to lanceolate and ‘often halberd- 
shaped; apex and basal lobes obtuse, finely nerved. Spike dense, 
2-4 in. long; peduncles inclosed by the spathe. Perianth hairy, blue, 
the upper lip with 2 yellow spots; tube 6-ribbed, curved, rather longer 
than the lobes. Ovary oblong. In ponds and slow streams.* 
9. JUNCACEZH. Rusn Famirty 
Grass-like perennial or annual herbs, mostly growing on 
wet soil. Stems mostly erect but sometimes creeping, simple 
or branched, naked or leafy and jointed. Leaves cylindrical, 
sheathing at the base, very slender and pointed or flattened 
and grass-like. Flowers in cymes or panicles, which may be 
very loose and spreading, or so compact as to form a head, 
sometimes with a rigid scape prolonged beyond the flower 
cluster. Flowers usually bracted. Perianth of 6 nearly equal, 
scale-like, persistent divisions. Stamens 3 or 6, inserted on 
the base of the perianth. Ovary free, 1- or 3-celled, many- 
ovuled; style single; stigmas 3, usually hairy. Fruit a 1- or 
3-celled, 3-many-seeded capsule. [Most species flower late in 
the season, and their identification is too difficult for one 
without considerable experience. ]* 
10. LILIACEZH. Liry Famiry 
Mostly herbs. Flowers actinomorphic. Perianth free from 
the ovary. Stamens nearly always 6, one before each division 
of the perianth. Ovary usually 3-celled; fruit a pod or berfy, 
few—many-seeded. 
Except in the genus Trillium the divisions of the perianth 
are colored nearly alike. 
