ffieracium. COMPOSITE. 427 



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

 species, with stem naked and leafless except near the base, and bristly hairs not so long : 

 but heads in the specimens barely in blossom, and akenes unknown. 



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

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

 obsolete.) 



-1 Crinite-hirsute with long and whitish or yellowish shaggy denticulate hairs, especially on both 

 sides of the entire leaves, on the branching leaf}- stems and panicle, and commonly but not 

 always on the involucre also: flowers yellow: akenes columnar and short, nut at all narrowed 

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



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

 small papilla:: leaves lanceolate or spatulate-lanceolate (3 to 6 inches long) : panicle irregu- 

 lar or branching : heads half-inch high : involucre somewhat fnrfuraceous and glandular, 

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

 & Gray, Fl. ii. 478, partly (some specimens of coll. Scouler distributed being //. cynoyios- 

 soides, and the plant from " Pennsylvania, Schweinitz," of Hooker, being H. 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 papilla: : leaves Ungulate-lanceolate or spatulate-obloug, lowest 

 petioled : panicle corymbiforra-cymose, of numerous small and 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. II. Brewer i, 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. 



II. RELICINUM, Fries, Epicr. 153, would seem to be only a taller and simpler-stemmed 

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

 a specimen in herb. DC., from mountains of California, Bridges. 



< -{ Crinitely long-villous with soft-woolly and blackish smooth hairs, which involve the heads, 

 &c., but are wanting to lower leaves ; no stellular pubc-cence 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; cauline oblong, upper ones and stem more or 

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

 the verv long dark-brown or partly grayish soft wool : akenes short-columnar. Cham, in 

 herb. Willd. ; Spreng. Syst. iii. C40 ; Frcel. in DC. Prodr. vii. 209 ; Torr. & Gray, Fl. ii. 

 458, partly; Fries, 1. c. Aleutian Islands to Behring Strait; first coll. by Cltcimlsso and 

 Eschsc/io/tz. 



H -I H Dark-hirsute (verging to naked) and somewhat glandular (also whitish with short 

 stellular-tomentum) on the involucre: leaves and lower part of scapiform 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 

 oblcng-spatulate (1 to 3 inches long) and attenuate into petioles, entire or repand-denticu- 

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

 or several racemosely disposed livid heads, the lower linear-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 Frcel., which is later. //. arctictim, 

 Frcel. in DC. Prodr. vii. 209. //. Hooker i, Steud. Nomen. ed. 2, 763. //. triste, in part, 

 Torr. & Gray, Fl. ii. 478. 77. triste, var. grrtn!e, Gray, Bot. Calif, i. 441. Alaska (Norfolk 

 Sound, ex Frcelich), Brit. Columbia, Northern Cascade and Rocky Mountains, and south 

 to those of Utah and Colorado. Passes 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 involucre. 77. triste, var. deton- 

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

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



