Hieracium. COMPOSIT^E. 427 



Alleghanies of Penn., Porter and Trnill Green, seems to be a depauperate form of the present 

 species, with stem uaked and leafless except near the base, and bristly hairs not so long; 

 but heads iu the specimens barely iu blossom, and akeues unknown. 



* * Rdcky Mountain and Pacific species. (Involucre in most cases less obviously double than in 

 the Eastern species; tlie calyculate bracts sometimes unequal or emulating tlie interior, or else 

 obsolete.) 



-f— Crinite-liirsute with long and whitish or j-ellowish shaggy denticulate hairs, especially on both 

 sides of the entire leaves, on the branching leaf^' steins and panicle, and conuuonly but not 

 always on the involucre also: flowers yellow: akenes columnar and short, not at all narrowed 

 upward, at most a line and a half long, shorter than tlie sordid pappus. 



H. Scouleri, Hook. Robust, a foot or two high : long and soft setose hairs commonly from 

 small papillaj : leaves lanceolate or spatulafe-Ianceolate (.3 to G inches long) : panicle irregu- 

 lar or branching: heads half-inch high: involucre somewhat furfuraceous aud glandular, 

 also sparsely or copiously beset with long bristly hairs : pappus whitish. — Fl. i. 298, & Torr. 

 & Gi'ay, Fl. ii. 478, pai'tly (some specimens of coll. Scouler distributed being //. cjjiwgius- 

 soldes, and the plant from " Pennsylvania, Schweinitz," of Hooker, being //. Gronovii) ; 

 Eaton, Bot. King Exp. 199. — Montana to Oregon and Brit. Columbia, southeast to the 

 Wahsatch Mountains, Utah. 



H. horridum, Fries. Low (a span to a foot high), in tufts, branched from the caudex : 

 softer villous hairs not from papillaj : leaves lingulate-lanceolate or spatulate-oblong, lowest 

 petioled : panicle corymbiform-cymose, of numerous small aud rather narrow heads : invo- 

 lucre 3 lines high, sometimes nearly naked, oftener beset with scattered and long bristly 

 hairs: pappus fuscous. — Epicr. Hier. 154; Arvet-Touvet, 1. c. 19. H.Breweri, Gray, Proc. 

 Am. Acad. vi. 553, & Bot. Calif, i. 440. — On rocks, in the higher Sierra Nevada, California, 

 from Shasta to San Bernardino Co. ; first coll. by Bridges, next by Brewer. 



H. RELiciNUM, Fries, Epicr. 153, wouhl seem to be only a taller and simpler-stemmed 

 form of the preceding, with widely open panicle aud long-hirsute involucre. Described from 

 a specimen iu herb. UC, from mountains of California, Bridges. 



^— ^— Criniteh' long-villous with soft-woolly and blackish smooth hairs, which invcdve the heads, 



&c., but are wanting to lower leaves; no stellular pubescence and no glands: flowers yellow: 



pappus fuscous. 



H. triste, Cham, a span or two high : stem simple, few-leaved, bearing solitary or mostly 



2 to 4 somewhat racemosely disposed heads : radical leaves obovate to spatulate, entire, 



green and glabrate, or with sparse pale hairs; cauliue oblong, upper ones and stem more or 



less villous-lanate : heads half-inch high : livid involucre and peduncles densely clothed with 



the very long dark-brown or partly grayisli soft wool: akenes short-columnar. — Cham, in 



herb. Willd. ; Spreng. Syst. iii. 640 ; Fral. in DC. Prodr. vii. 209 ; Torr. & Gray, Fl. ii. 



458, partly; Fries, 1. c. — Aleutian Islands to Behring Strait; first coU. by Chamisso and 



Eschscho/fz. 



4— -1— ^— Dark-hirsute (verging to naked) and somewhat glandular (also whitish with short 



stellular-toniLntum) on the involucre : leaves and lower part of scajjiform stems not even p lose 



(but glabrous or at most puberulent): flowers yellow: pappus sordid. 



H. gracile, Hook. Pale green, in tufts : leaves nearly all in radical clusters, obovate- to 



oblong-spatulate (1 to 3 inches long) a,nd attenuate into petioles, entire or repand-denticu- 



late: stems or scapes slender, 8 to 18 inches high, cinereous-tomentulose above, bearing few 



or several racemosely disposed livid hends, the lower lincar-bracteate : involucre about 4 



lines high, usually blackish-hairy at base in the manner of the preceding, but the hairs much 



shorter than the head, also (as on the peduncles) some more setulose and glandular ones: 



akenes short-columnar. — Fl. i. 298; Fries, 1. c, not of Frad., which is later. //. arcticum, 



Frcel. in DC. Prodr. vii. 209. H. Ilookeri, Steud. Nomen. ed. 2, 763. H. triste, in part, 



Torr. & Gray, Fl. ii. 478. H. triste, var. gracile. Gray, Bot. Calif, i. 441. — Alaska (Norfolk 



Sound, ex Fradich), Brit. Columlna, Northern Cascade and Rocky J^tpuntains, aud south 



to those of Utah and Colorado. Pa.sses into 



Var. detonsum. A span to nearly a foot high, with rather smaller heads : dark hir- 

 sute hairs wholly wanting, or only some smaller ones on the inviducre. — //. triste, var. deton- 

 sum. Gray, Bot. Calif. 1. c. — Mountains of Brit. Columbia to tho.se of Colorado, and alpine 

 region iu the Sierra Nevada, California, at some stations accompanying the typical form. 



