618 CONTEIBUTIONS FKOM THE NATIONAL HEEBAKIUM. 



New Mexico: Tunitcha Mountains; Chama; Sierra Grande; Santa Fe and Las 

 Vegas mountains; West Fork of the Gila; Hillsboro Peak; Luna; White and Sacra- 

 mento moiintains. Meadows and thickets in the moimtains, Transition to Hud- 

 Bonian Zone. 



2. Valeriana ovata Rydb. BulL Torrey Club 31: 645. 1904. 



Valeriayia acutiloba ovata A. Nels. in Coulter, New Man. Rocky Mount. 476. 1909. 



Type locality: "Cameron's Cove," Colorado. 



Range: Mountains of Colorado and New Mexico. 



New Mexico: San Mateo Moimtains; Santa Fe and Las Vegas mountains; Sandia 

 Mountains; Magdalena Moimtains; Holts Ranch; Kingston; Organ Peak; White 

 Mountains. Transition and Canadian zones. 



3. Valeriana acutiloba Rydb. Bull. Torrey Club 28: 24. 1901. 



Type locality: Near Gray-Back Mining Camp, Sangre de Cristo Range, Colorado. 

 Range: Wyoming to Arizona and New Mexico. 



New Mexico: Santa Fe and Las A''egas mountains. Damp woods, in the Tran- 

 sition and Canadian zones. 



Order 50. ASTERALES. 



KEY TO THE FAMILIES. 



Flowers all with tubular corollas or none, or only 

 the imperfect ray flowers with ligulate corol- 

 las. 



Stamens distinct; flowers unisexual 143. AMBKOSIACEAE (p. 631). 



Stamens united by the anthers or if distinct the 



flowers perfect 144. ASTERACEAE (p. 637). 



Corollas of all or only of the perfect flowers bilabi- 

 ate or ligulate. 

 Corollas all ligulate; herbage usually with milky 



juice; style branches filiform 141. CICHORIACEAE (p. 618). 



Corollas of all or only the perfect flowers 

 bilabiate; herbage without milky juice; 

 style branches short, not filiform 142. MUTISIACEAE (p. 630). 



141. CICHORIACEAE. Chicory Family. 



Herbs, mostly with milky bitter juice; leaves alternate; heads homogamous and 

 ligulate, the flowers all perfect and with ligulate corollas; ligules 5-toothed at the 

 apex; anthers auriculate at the base, not caudate; style branches filiform, minutejy 

 papillose, not appendaged. 



key to the genera. 



Pappus of plumose bristles, often paleaceous at the base. 

 Achenes truncate at the apex, not beaked; flowers 



pink 1. Ptiloria (p. 620). 



Achenes beaked; flowers white to purple. 



Flowers white or pinkish; leaves runcinate; in- 

 volucres with a few calyculate outer 



bracts 2. Nemoseris (p. 621) , 



Flowers purple; leaves entire; involucres with- 

 out outer calyculate bracts 3. Tragopoqon (p. 621). 



