26 



Key 



Page 



b. Flowers green or greenish. 



(1) Vine armed with spines... Smilax — 66 



(2) Plant not a vine Schoenocaulon — 62 



e. Flowers pink to red. 



(x) Leaves thick, spongy, mottled Manfreda — 67 



(y) Leaves not thick or spongy. 



r. Leaves onion-scented Allium — 62 



s. Leaves not onion-scented, 

 m. Flowers clustered. 



(1) Stamens feathery at base Tradescantia— 59 



(2) Stamens not feathery Schoenocaulon— 62 



n. Flowers solitary Atamosco— 68 



d. Flowers yellow to brown. 



(1) Flowers lily-like Atamosco— 68 



(2) Flowers not lily-like Typha— 58 



e. Flowers blue to purple. 



m. Petals and sepals 3 each, alike in 

 color. 



(x) Leaves plaited Nemastylis — 69 



(y) Leaves not plaited. 



r. Leaf -blades broad Pontederia — 60 



s. Leaf -blades narrow. 



(m) Sepals and petals thick .Androstephium — 63 



(n) Petals and sepals thin. 



(1) Stems flattened Sisyrinchium— 70 



(2) Stems not flattened ...Quamasia — 63 



n. Petals and sepals 3 each, unlike. 



r. Petals 3 alike in size Tradescantia— 59 



s. Petals 3, 2 large, 1 small, incon- 

 spicuous. 



(1) Spathe erect, unfolded Commelinantia — 59 



(2) Spathe folded Commelina— 60 



B, Leaves with netted veins. 



(I) Leaves mainly opposite, clustered or 

 whorled. 



x. Leaves with 1 main vein at base. 



a. Flowers yellow or orange or green- 

 ish-yellow, 

 m. Flowers composite — See Key to 



Asteraceae Asteraeeae— 205 



n. Flowers simple, 

 (x) Shrubs. 



