650 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



the flowers; calyx teeth conspicuous; corolla yellow; stylopodium 

 absent; fruit oblong, 3 to 8 mm. long, slightly compressed dorsally, 

 the lateral and dorsal wings broadly linear to subovate in cross section, 

 the oil tubes usually solitary in the intervals, 2 to 4 on the commis- 

 sure, the seed face plane or slightly concave. 



Key to the species 



1. Plants more or less puberulent; involucel bractlets usually ciliate; fruit boat- 

 shaped, the wings subovate in cross section 1. O. alpina. 



1. Plants glabrous; involucel bractlets not ciliate; fruit not boat-shaped, the 

 wings broadly linear in cross section 2. O. macdougali. 



1. Oreoxis alpina (A. Gray) Coult. and Kose, Contrib. U. S. Natl. 



Herbarium 7: 144. 1900. 



Cymopterus alpinus A. Gray, Amer. Jour. Sci. ser. 2, 33: 408. 

 1862. 



Keet Seel, Navajo Indian Reservation (J. Howell 69), without 

 locality (Palmer in 1869). Wyoming to northern New Mexico and 

 northeastern Arizona, in the mountains. 



2. Oreoxis macdougali (Coult. and Rose) Rydb., Torrey Bot. Club 



Bui. 40: 68. 1913. 



Metes (?) macdougali Coult. and Rose, Contrib. U. S. Natl. 

 Herbarium 7: 107. 1900. 



Known in Arizona only from the type collection, on Grand view 

 (Berry) Trail, Grand Canyon, 7,000 feet (MacDougal 192). South- 

 western Colorado, southeastern Utah, and northern Arizona. 



20. CONIOSELINUM 



Plants perennial from a cluster of fleshy roots, caulescent, glabrous 

 or the inflorescence puberulent; leaves bipinnate or ternate-pinnate, 

 the leaflets ovate to ovate-lanceolate, acute, laciniately toothed or 

 pinnatifid; peduncles exceeding the leaves; umbels compound; in- 

 volucre mostly absent; involucel wanting, or of 1 to several, more or 

 less elongate, narrow bractlets; calyx teeth obsolete; corolla white; 

 stylopodium low-conic; fruit oval, 3 to 6 mm. long, compressed dor- 

 sally, the lateral wings broad, corky, the dorsal ribs slender, winged, 

 the oil tubes 1 or 2 in the intervals, 4 on the commissure, the seed 

 face plane or slightly concave. 



Key to the species 



1. Leaves ternate-pinnately divided, 10 to 20 cm. long, the upper leaves similar 

 to the lower leaves; leaflets 2 to 6.5 cm. long; bractlets of the involucel 

 linear, elongate; rays 10 to 20 1. C. scopulorum. 



1. Leaves bi- to ternate-pinnate, 6 to 14 cm. long, the upper leaves with elongate 

 entire leaflets; leaflets 1 to 2.5 cm. long; bractlets of the involucel filiform 

 or wanting; rays 5 to 11 2. C. mexicanum. 



1. Conioselinum scopulorum (A. Gray) Coult. and Rose, Contrib. 

 U. S. Natl. Herbarium 7: 151. 1900. 



Ligusticum scopulorum A. Gray, Amer. Acad. Arts and Sci. 

 Proc. 7: 347. 1868. 



East fork of White River (Navajo ? County), Pinaleno Mountains 

 (Graham County), Chiricahua and Huachuca Mountains (Cochise 



