so KEY AND FLORA 



but only 1 cell ovule-bearing; the 1-seeded utricle inclosed 

 by the base of the perianth.* 



1. P. cordata L. Pickerel 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. JUNCACE.a;. Rush Family 



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 

 S-celled, 3-many-seeded capsule. [Most species flower late in 

 the season, and their identification is too difiicult for one 

 without considerable experience.]* 



10. LILIACEJE. Lily Family 



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 berry, 

 few-many-seeded. 



Except in the genus Trillium the divisions of the perianth 

 are colored nearly alike. 



