(354 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



1. Pseudocymopterus montanus (A. Gray) Coult. and Rose, Rev. 



North Amer. Umbell. 74. 1888. 



Thaspium (?) montanum A. Gray, Amer. Acad. Arts and Sci. 



Mem. ser. 2, 4: 57. 1849. 

 Peucedanum lemmoni Coult. and Rose, Bot. Gaz. 14: 277. 



1889. 

 Lomatium lemmoni Coult. and Rose, Contrib. U. S. Natl. 



Herbarium 7: 231. 1900. 

 Pseudocymopterus multifidus Rydb., Torrey Bot. Club Bui. 33: 



147. 1906. 

 Pseudocymopterus purpureus (Coult. and Rose) Rydb., ibid. 

 Pseudocymopterus tenuifolius (A. Gray) Rydb., ibid. 



Apache County to Coconino County, south to Cochise and Pima 

 Counties, 5,500 to 12,000 feet, common in pine woods. Southern 

 Wyoming to western Utah, south to northern Mexico. 



This species is exceedingly variable in vegetative characters, such 

 as leaf division, shape and size of the ultimate segments, and height of 

 growth. These characters are governed to a great extent by the 

 habitat of the individual plant. The flower color sometimes varies 

 on the same plant from yellow, through orange purple, to purple. 

 In some individuals the dorsal wings of the fruit are absent through 

 abortion. 



2. Pseudocymopterus davidsoni (Coult. and Rose) Mathias, Mo. 



Bot. Gard. Ann. 17: 316. 1930. 



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



Herbarium 7: 107. 1900. 

 Pseudocymopterus filicinus Woot. and Standi., Contrib. U. S. 



Natl. Herbarium 16: 158. 1913. 



Greenlee County, among rocks in a moist creek bed near Clifton 

 (Davidson in 1900, the type collection), Garfield {Davidson), 45 miles 

 north of Clifton, 8,100 feet (Kearney and Peebles 12240, 12241). 

 Western New Mexico and southeastern Arizona. 



25. LEPTOTAENIA 



Plants perennial, caulescent, glabrous except for the scabrous- 

 puberulent, rarely glabrate, foliage; leaves large, ternate-pinnately 

 decompound, the segments linear-oblong, acute or obtuse, distinct; 

 peduncles exceeding the leaves; umbels compound; involucre of few 

 bracts, or absent; involucel of several linear bractlets; calyx teeth 

 usually obsolete; corolla purple, yellow, or greenish; stylopodium 

 absent; fruit oblong-oval, 8 to 16 mm. long, compressed dorsally, 

 the lateral wings broad, corky- thickened, the dorsal ribs obscure or 

 filiform, the oil tubes obscure, the seed face plane. 



1. Leptotaenia dissecta Nutt. ex Torr. and Gray, Fl. North Amer. 1: 

 630. 1840. 



Mormon Lake, Coconino County {MacDougal 58), East Fork of 

 White River, Navajo (?) County {Harrison 4847), Mazatzal Moun- 

 tains, Gila County (Collom 147, Harrison 7828), 4,000 to 6,000 feet. 

 Colorado to British Columbia, south to Arizona and California. 



The species is represented in Arizona by var. multijida (Nutt.) 

 Jepson (L. multijida Nutt.). The plant is sometimes known as carrot- 



