16 PROCEEDINGS OF THE AMERICAN ACADEMY. 



1 or 2, much smaller, lance-oblong, acute : heads 3 to 40, rather large : 

 inner scales of the involucres 10 to 12 mm. long : achenes at length red- 

 dish black; pappus sordid white. — Bonplandia, ix. 173 (1861); Gray, 

 Proc. Am. Acad, xix, 69, & Sjn. Fl. i. pt. 2, 429, including the poorly 

 marked var. discolor. H. nigrocollinum, Wats. Proc. Am. Acad. xxv. 

 133 (1890). Crepis amhigua, Gray, PI. Fendl. 114 (1848), & PI. 

 Wright, ii. 106 (not i. 129). — New Mexico: banks of Santa Fe 

 Creek, Fendler, no. 488 (hb. Gr.) ; Organ Mountains, Wright, no. 1427 

 (hb. Gr.) ; Mogollon Mountains, G. R. Vasey. Arizona : Santa Rita 

 Mountains, alt. 1825 to 2450 m., Pringle (hb. Gr.) ; Tanner's Caiiou 

 near Ft. Huachuca, Lemnion, no. 2804 (hb. Gr.) ; Willow Spring, 

 Palmer, no. 532 (hb. Gr.) ; vicinity of Flagstaff, MacDougal, no. 19 (hb. 

 Gr.). Chihuahua : Sierra Madre, Pringle, no. 1536 (hb. Gr.) ; pine 

 forest near Chuchuichupa, Hartman, no. 698 (hb. Gr.) ; near Colonia 

 Garcia, Townsend S^ Barher, no. 23 (lib. Gr.). Lower California: 

 La Chuparosa, Brandegee (hb. Gr.). Extending northward to 

 Dakota. 



2. H. brevipilum, Greene. Stem erect, 47 cm. high, leafy only 

 near the base, pilose with slender spreading or slightly reflexed hairs : 

 leaves narrowly oblong, rounded to acute at the apex, remotely and 

 obscurely glandular-denticulate, pilose upon both surfaces : heads about 

 8, subracemose ; peduncles and long narrow involucral scales glandular- 

 hispid : corollas greenish yellow : achenes dark red ; pappus white or 

 nearly so. — Bull. Torr. Club, ix. 64 (1882). H. Fendleri, var. mogollense, 

 Gray, Proc. Am. Acad. xix. 69 (1884), & Syn. Fl. i. pt. "2, 429. 

 H. erythrosjjermum, Greene ace. to Gray, 11. cc. — New Mexico : 

 Mogollon Mountains, Rushy (hb. Gr.). 



3. H. prionophilura, n. sp. Stem stout, erect, green, striate, 12 dm. 

 high, leafy, covei'ed with long spreading hairs (tawny in dried speci- 

 mens) : basal leaves wanting at authesis, the cauline about 7, thin, oblong- 

 lanceolate, acutish, strongly dentate, sparsely hirsute upon both surfaces, 

 scarcely paler beneath, 10 to 18 cm. long, 2 to 5 cm. broad, the upper- 

 most reduced, caudate-attenuate : corymbose panicle about 50-headed ; 

 its branches curved upwards, tapering ; pedicels slender, spreading, to- 

 mentuiose and covered with minute spreading dark glandular bristles : 

 corollas greenish white : achenes reddish black ; pappus bright white. — 

 Chihuahua : shaded ledges, Arroyo Aucho, Sierra JMadre, Pringle, 

 no. 1314 (hb. Gr.). San Luis Potosi: alt. 1825 to 2450 m., Parry 

 Sf Palmer, no. 551 (hb. Gr.). 



