124 LILIACEiE. 



27. STENANTHITJM, Gray. 



1. S. occidentale, Gr. Slender, 1-2 ft. high: perianth 4-7 lines long; segments 

 linear-lanceolate, tips recurved: linear seeds winged. Or., N. 



28. TOIiFIELDIA, Hudson. 



1. T. occidentalis, Wats. Viscid-pubescent: involucre 3-lobed often reddish. 



2. T. glutinosa, Willd. Involucre scarcely lobed, near the flower. Or., N. & E. 



29. NAUTHECIUM, Moehring. 

 1. N. Californicum, Baker. Raceme loose, 3-5 in. long: perianth 3-4 linea long: 

 capsule bright salmon-color; seeds with tails at both ends. N. CaL 



30. XEROPHYLLUM, Michaux. 



1. X. tenax, Nutt. Stem 2-5 ft. high: perianth-segments ^-^ in. long. CaL, N. 



2. Z. Douglasii, Wats. Smaller in every way. Columbia River. 



