WOOTON AND STANDLEY FLOKA OF NEW MEXICO. 627 



4. Taraxacum montanum. Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 430. 1841. 



Type locality: "On the banks of the Platte, in subsaline situations toward the 

 Rocky Mountains, and in the highest valleys of the Colorado of the West." 



Range: Montana to New Mexico. 



New Mexico: Winsors Ranch; Santa Fe Canyon; Sacramento Mountains. Moun- 

 tains, in the Transition Zone. 



A specimen from Cloudcroft has entire leaves. It is not imi^robable that the 

 material from the Sacramento Mountains represents an undescribed species. 



13. CALYCOSERIS A. Gray. 



Slender glaucous winter annual with branching stems, the leaves pinnately parted 

 into linear lobes, the heads rather large, pedunculate, terminating the branches; 

 flowers white or pinkish; heads and peduncles glandular-hispid; involucre of numer- 

 ous erect narrow bracts in a single series and of a loose calyculate outer series; recep- 

 tacle bristle-bearing; achenes fusiform or oblong, 5-ribbed, attenuate to a short beak 

 terminating in a shallow scarious crown; pappus of soft capillary bristles, deciduous. 



1. Calycoseris wrightii A. Gray, PI. Wright. 2: 104. pi. U. 1853. 



Type locality: "Stony hills around EI Paso," Texas or Chihuahua. 



Range: Western Texas to Arizona and Utah. 



New Mexico: Mesa west of Organ Mountains; Picacho Mountain. Mesas, in the 

 Lower Sonoran Zone. 



14. HIERACITJM L. Hawkweed. 



Hirsute, lanate, or glandular perennial herbs with mostly entire leaves and panicu- 

 late heads of yellowish, whitish, or pink flowers; heads 12 to many-flowered; involucre 

 of narrow, somewhat imbricated bracts, a few short ones at the base; achenes short, 

 striate, not beaked; pappus a single row of slender white or tawny bristles. 



key to the species. 



All leaves glabrous or nearly so, none long-hairy 1. H. gracile. 



Basal leaves hirsute or lanate. 



Flowers whitish or flesh-colored; pappus bright white; stems 

 leafy. 

 Plants stout; cauline leaves and stem hirsute; flowers 



whitish 2. H. lemmoni. 



Plants slender; cauline leaves and stems glabrous; flowers 



flesh-colored 3. JI. carneum. 



Flowers yellow; pappus tawny; stems leafy or nearly naked. 



Leaves lanate 4. H. pringlei. 



Leaves hirsute, never lanate. 



Stems bearing numerous leaves; involucres 7 mm. 



high or less 5. H. rusbyi. 



Stems bearing only 1 or 2 reduced leaves; involucres 

 9 to 15 mm. high. 

 Basal leaves oblanceolate-spatulate to obovate, 



long-hirsute; involucres 12 to 15 mm. high. 6. H.fendleri. 

 Basal leaves linear-oblong, short-hairy; involucres 



not more than 10 mm. high 7. H. brevipilum. 



1. Hieracimn gracile Hook. Fl. Bor. Amer. 1: 298. 1833. 

 Hieradum triste gracile A. Gray in Brewer & Wats. Bot. Calif. 1: 441. 1876. 

 Type locality: Rocky Mountains. 



Range: Mountains, Alaska and Montana to California and New Mexico. 

 New Mexico: Truchas Peak {Standley 4810). Arctic-Alpine Zone. 



