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



eastern California, south to western New Mexico, Arizona, and Sonora. 

 The distribution in Arizona as given above is that of the typical 

 form, with ovaries and fruit puberulent. The var. parishii (Coult. 

 and Rose) Jepson (Cogswellia orientalis (Coult. and Rose) M. E. Jones, 

 in part, C. decipiens M. E. Jones), is easily distinguished from the 

 species by its glabrous ovaries and fruit. It is the commonest and 

 most widely distributed form of the species in Arizona, ranging from 

 Coconino and Mohave Counties to Greenlee, Maricopa, and Pima 

 Counties, 3,500 to 5,500 feet, type of C. decipiens from Hualpai 

 Mountain {Jones in 1903). Another form occurring in Arizona is var. 

 pseudorientale (M. E. Jones) Munz {Cogswellia nevadensis var. pseud- 

 orientalis M. E. Jones), which is similar to var. parishii except that 

 the petioles are more prominently scarious-margined, the wings 

 broader than the body of the fruit, and the dorsal ribs evident. This 

 occurs in much of the rainge of var. parishii but is apparently less 

 common, the type from Skull Valley, Yavapai County (Jones in 1903). 



3. Lomatium macdougali Coult. and Rose, Contrib. U. S. Natl. 



Herbarium 7: 233. 1900. 

 Coconino, eastern Mohave, and Yavapai Counties, 4,500 to 8,000 

 feet, type from Mormon Lake (MacDougal 84). Western Wyoming 

 to central Oregon, south to central Arizona. 



4. Lomatium mohavense Coult. and Rose, Contrib. U. S. Natl. 



Herbarium 7: 234. 1900. 

 Peach Springs, Mohave County, 5,000 feet (Lemmon in 1884). 

 Deserts of southern California and adjacent Nevada. 



5. Lomatium parryi (S. Wats.) Macbride, Contrib. Gray Herbarium 



ser. 2, 56: 35. 1918. 



Peucedanum parryi S. Wats., Amer. Acad. Arts and Sci. Proc. 



11: 143. 1876. 

 Cynomarathrum parryi Coult. and Rose, Contrib. U. S. Natl. 



Herbarium 7: 246. 1900. 



South end of Navajo Mountain, Coconino County, 7,500 to 8,400 

 feet (Peebles and Smith 13963). A4oun tains of southeastern Utah to 

 northern Arizona and eastern California. 



Other species of this genus that may be found in Arizona are: Lomatium 

 nuttallii (A. Gray) Macbride, which has been collected in northwestern New 

 Mexico, L. latilobum (Rydb.) Mathias, known from southeastern Utah, and L. 

 scabrum (Coult. and Rose) Mathias, known from southwestern Utah. 



27. PASTINACA. Pabsnip 



Plants perennial from thick taproots, caulescent, branching, 

 glabrous or nearly so; stem stout, fluted; leaves pinnate, the leaflets 

 oblong to ovate, coarsely serrate and pinnately lobed or divided; 

 peduncles axillary and terminal; umbels compound; involucre none 

 or of a few narrow, deciduous bracts; involucel absent; calyx teeth 

 obsolete; corolla yellow; stylopodium depressed-conic; fruit obovate 

 to orbicular, 5 to 6 mm. long, strongly flattened dorsally, the dorsal 

 ribs filiform, the lateral wings narrow, the oil tubes solitary in the 

 intervals, 2 on the commissure, visible on the dorsal surface, shorter 

 than the fruit, the seed face plane. 



