156 REPORT OF NEW JERSEY STAT]^. MUSEUM. 



SSSSS- Flowers inconspicuous, in an open pani- 

 cle, scattered singly or clustered in 

 heads (panicle sometimes congested), 

 green or brownish. Leaves grass-like 

 or awl-shaped and whole plant resem- 

 bling a sedge. Juncacece, p. 328 

 ee. Leaves cauline. 



f. Leaves oval, ovate, etc. (at least 25 mm. wide). 

 g. Flowers green, in a large open panicle. 



Veratrum, p. 342 

 gg. Flowers white, small, star-shaped. 

 li. In a dense slender spike. 



Chamalirium, p. 341 

 Jih. In a compact terminal panicle. 



i. Parts in six. Vagnera, p. 348 



a. Parts in four Unifolium, p. 349 



ggg. Flowers white or yellow, bell-shaped. 



h. Single yellow. Uvularia, p. 343 



hh. In umbels, white Polygonatum, p. 349 

 ff. Leaves sagittate, flowers blue. 



Pontederia, p. 327 

 fff. Leaves uniform, flowers small, from a leafy 

 spathe. Heteranfhera reniformis, p. 327 



ffff. Leaves grass-like or long linear, sword-like 

 (never as much as 25 mm. wide). 

 g. Flowers without a perianth, very minute. 

 h. Flowers in dense terminal spikes 

 (cattails). Typha, p. 158 



/;/;, Flowers globular umbels of stamens 

 or pistils. Sparganium, p. 159 



lihh. Flowers in a slender dense spike 

 (a spadix) on the side of a flat leafy 

 scape. Acortis, p. 317 



gg. Flowers with conspicuous perianth. 

 /;. Flowers in a spike. 



i. Yellow with chaffy bracts. 



Abama, p. 338 

 n. White or greenish-white. 

 /. Stem glutinous. 



Tofleldia, p. Z2>7 

 jj. Stem not glutinous. 



k. Leaves grass-like, harsh, 

 in a dense tuft. 



XeropJiylluin, p. 339 

 kk. Leaves linear, 18 mm. 

 broad, smooth. 



Chrosperma, p. 341 

 hli. Flowers in an umbel or solitary. 

 i. Sepals green, petals blue. 



Trade scantia, p. 325 



