FLOWERING PLAXTS AND FERXS OF ARIZONA 651 



County), Santa Rita Mountains (Pima County). Wyoming to New 

 Mexico and Arizona. 



2. Conioselinum mexicanum Coult. and Rose, Wash. Acad. Sci. Proc. 

 1: 147. 1900. 

 Santa Rita Mountains, Pima County {Kearney and Peebles 10497). 

 Southern Arizona and Chihuahua. 



21. ANGELICA 



Plants perennial, caulescent, somewhat pubescent; leaves ternate- 

 pinnate or by reduction pinnate, the leaflets lanceolate to ovate, acute, 

 distinct, coarsely to remotely serrate; peduncles exceeding the leaves; 

 umbels compound; involucre and involucel usually absent; calyx teeth 

 obsolete; corolla white, greenish, or purple; stylopodium low-conic; 

 fruit oblong-oval, 3 to 6 mm. long, densely hirsutulous when young, 

 occasionally glabrate at maturity, compressed dorsally, the lateral 

 wings broad, the dorsal ribs slender, winged, the oil tubes 1 or 2 in 

 the intervals, several on the commissure, the seed face slightly concave. 



1. Angelica pinnata S. Wats, in King, Geol. Expl. 40th Par. 5: 

 126. 1871. 



Angelica leporina S. Wats., Amer. Acad. Arts and Sci. Proc. 12: 

 252. 1877. 



Without definite locality (Palmer 183, in 1877), also collected by 

 Standley in the Tunitcha Mountains, N. Mex., a range which extends 

 into Arizona. Wyoming, Utah, and Nevada to northern Mexico. 



22. CYMOPTERUS 98 



Plants perennial from long taproots, low, acaulescent or subacaule- 

 scent, glabrous or pubescent; leaves 2- to 4-pinnatiscet, the segments 

 narrow, short; peduncles shorter than to exceeding the leaves; umbels 

 compound, or globose with the rays fused into a disk; involucre 

 absent or present; bractlets of the involucel usually conspicuous, 

 usually dimidiate, foliaceous to scarious; calyx teeth inconspicuous; 

 corolla white, yellow, or purple; stylopodium absent; fruit ovate to 

 oblong, 4 to 18 mm. long, more or less compressed dorsally, the lateral 

 wings present, the dorsal wings usually present, the oil tubes small, 

 1 to 24 in the intervals, 2 to 22 on the commissure, the seed face 

 slightly to deeply concave. 



Key to the species 



1. Rays of the umbel fused to form a discoid inflorescence; involucel bractlets 



scarious and paleaceous 1. C. megacephalus. 



1. Ravs of the umbel distinct, 0.2 to 9 cm. long; involucel bractlets not paleaceous 

 '(2). 

 2. Bractlets of the involucel scarious (3). 



3. Bractlets of the involucel purple or greenish white, conspicuously many- 

 nerved 4. C. MULTIXERVATUS. 



3. Bractlets of the involucel white or whitish, few-nerved (4). 



4. Umbels more or less spreading, the mature rays 10 to 50 mm. long; 

 fruit ovate-oblong to oblong, the wings mostly narrower than the 

 body of the fruit 2. C. bulbosus. 



4. Umbels densely globose, the mature rays 4 to 10 mm. long; fruit ovate. 

 the wings broader than the body of the fruit- 3. C. purpurascexs. 



6i Reference: See footnote 97, p. 649. 



