WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 629 
2. Lygodesmia grandiflora (Nutt.) Torr. & Gray, Fl. N. Amer. 2: 485. 1842. 
Erythremia grandiflora Nutt. Trans, Amer, Phil. Soc. n. ser. 7: 445, 1841. 
Type Locauity: ‘In the Rocky Mountain range, on the borders of the Platte.” 
Range: Wyoming and Idaho to Arizona and northwestern New Mexico. 
New Mexico: Farmington (Standley 6936). Plains and low hills, in the Upper 
Sonoran Zone. 
3. Lygodesmia texana (Torr. & Gray) Greene; Small, Fl. Southeast. U. 8. 1315. 
1903. 
Lygodesmia aphylla texana Torr. & Gray, Fl. N. Amer, 2: 485, 1842. 
TYPE LOCALITY: Texas. 
Rance: Plains of New Mexico and Texas. . 
New Mexico: Near Fort Cummings; Hondo Hill; 40 miles west of Roswell. Upper 
Sonoran Zone, 
Prenanthella exigua (A. Gray) Rydb. probably occurs in New Mexico. It was 
described from plants collected on hills above El Paso. We have seen no New Mexi- 
can specimens, although the range of the plant extends well to the north. 
16. CREPIS L. 
Perennial herbs with mostly basal, toothed, pinnatifid, or nearly entire leaves and 
rather small corymbose yellow heads; involucre cylindric or campanulate, swollen at 
the base, of few narrow bracts with several short basal ones; achenes columnar, ribbed 
or nerved; pappus of copious soft whitish capillary bristles. 
KEY TO THE SPECIES. 
Leaves canescent. 
Involucres glabrous..........-.-02..-0-0-- eee eee eee eee eee Ll. CL acuminata. 
Involucres canescent...........2.-. 22-22 e eens 2. C. occidentalis. 
Leaves glabrous. 
Involucres glabrous. 
Leaves nearly linear, toothed, erect, green.............. 3. C. mogollonica. 
Leaves oblanceolate, entire, flattened upon the ground, 
glaucous................. eee eee e cece cece ceeeee 4, C. chamaephylla. 
Involucres glandular or hirsute. 
Leaves long-petioled, the petioles half as long as the 
blades or More.............. 20. cece ee eee eee eee 5. C. petiolata, 
Leaves sessile or on short, broadly winged petioles, 
Leaves thick, lobed with deep obtuse lobes; invo- 
lucres about 9 mm, high .........-......-..-- 6. C. neomexicana. 
Leaves thin, shallowly dentate with acute teeth; 
involucres about 10 mm, high............-.. 7. C. perplexans. 
1. Crepis acuminata Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 437. 1841. 
Tyre LocALity: ‘Plains of the Platte.”’ 
Rance: Washington and Montana to California and New Mexico. 
New Mexico: A single specimen seen, without definite locality but probably from 
western McKinley County. Mountains, in the Transition Zone. 
.2. Crepis occidentalis Nutt. Journ. Acad. Phila. '7: 29. 1834. 
Type Locauiry: ‘Columbia River.”’ 
RanGeE: Washington and Montana to California and northern New Mexico. 
New Mexico: Pass southeast of Tierra Amarilla (Zggleston 6596). Open hills, in 
the Upper Sonoran and Transition zones. 
3. Crepis mogollonica Greene, Contr. U. 8. Nat. Herb. 16: 176. 1913. 
Type LocaLity: West Fork of the Gila, Mogollon Mountains, Socorro County, New 
Mexico. Type collected by Metcalfe (no. 576). 
RanGeE: Kn-wn only from type locality, in the Transition Zone. 
