396 COMPOSITAE hieracium 



■*" "•" Stems more or less leafy; involucre 15-30 flowered, oblong- 

 campanulate, of rather numerous narrow and acute or acutish bracts : 

 flowers yellow : achenes not narrowed upward : pappus from sorded 

 to dull white. 



H. cynoglossoides Arvet. Gray Proc. Am. Acad, xix, 68. More or 

 less pubescent with somewhat hispid hairs, and the inflorescence glandu 

 lar: stems 1-2 feet high, numerous from the crown of a persistent root, 

 leafy : leaves lanceolate, mostly acute, 2-6 inches long ; the upper sessile 

 by a narrow base; the lower narrowed to a winged petiole: heads few to 

 several in an open corymbose cyme : involucre 6-8 lines high : its linear 

 acute bracts and short peduncles rather densely hirsute with short black 

 hairs as well as glandular : achenes rather short. In open woods British 

 Columbia to California and the Rocky Mountains. 



H. amplum Greene Eryth. iii, 101. "Stoutish 2 or 3 feet high, amply 

 leafy up to the rather broad corymbose panicle, but no radical tuft of foli- 

 age : leaves oblong-spatulate, acutish, entire, 4-6 inches long hirsute along 

 the margins, and with scattered appressed hairs on both faces : upper can- 

 line leaves and branches of the inflorescence pale and glaucescent, seem- 

 ingly glabrous, but somewhat tomentose-puberulent under a lens : involu- 

 cres about 5 lines high, loosely calyculate, the subequal bracts dark with 

 black setulose stout hairs otherwise glabrous : ligules yellow : achenes 

 columnar or even slightly widening to the summit : pappus white. On hill- 

 sides at 6000-7000 feet altitude Mount Adams, Washington, Suksdorf." 



H. barbigerum Greene Pitt. iii. 22S. Stems slender, tufted, from deep 

 seated somewhat running rootstocks, 4-10 inches high, leafy only near the 

 base: leaves somewhat crowded but not rosulate, lanceolate to spatulate, 

 short petioles and leaf-margins hirsute with long spreading hairs which 

 extend more sparsely to both sides of the leaves and stem, the lower faces 

 of the leaves also tomentulose with branched hairs : heads 1-5, in a loose 

 cyme : involucre campanulate, about 6 lines high, its linear bracts hirsute 

 and tomentulose like the leaves with also a few dark setulose hairs: pap- 

 pus nearly white. On grassy slopes of Ashland Butte, Oregon, to Lassen 

 county, California. 



H. cinereum. Cinereous with a minute white scurfy tomentum: stems 

 rather stout, 6-10 inches high, from stout creeping rootstocks forming 

 large patches leafy only toward the base : leaves lanceolate or narrower, 

 acute or acuminate, 3-4 inches long, sparsely denticulate narrowed be- 

 low to broad winged petioles ; sparsely hirsute with crisp hairs : heads sev- 

 eral to numerous in a close corymbose paniculate-cyme : involucre 5-6 lines 

 high, its linear principal bracts with broad scarious margins, the outer 

 and shorter ones subulate all sparsely or not at all hirsute : pappus sor- 

 ded. In open places near Table Rock, Clackamas county. Oregon. 

 ****** Leaves all at the base of the loosely branching scape-like 

 stem: flowers yellow only 5-15 in the narrow and diffusely paniculate 

 heads : achenes slightly if at all tapering to the summit. 



H. Bolanderi Gray Proc. Am. Acad, vii, 265. Stem slender, 6-18 

 inches high, commonly solitary, glabrous: leaves nearly all in a radical 

 tuft, ovate to broadly lanceolate mostly obtuse, sparingly denticulate or 

 entire 2-3 inches long, tapering below to a winged petiole, pale and glau- 

 cous below, green and beset with bristles above : heads few to several in a 

 loose paniculate cyme : involucre narrow, 5-lines high, glabrous of 5-10 

 linear-lanceolate, very acute principal bracts and a few smaller ones at 

 their base : achenes fully as long as the pappus. 



H. Howellii Gray Bot. Gaz. xiii, 73. Stems 1-2 feet high, hoary with 

 close stellular pubescence, hirsute below : leaves spatulate to oblanceolate 

 entire or some of them sparingly dentate, 3-4 inches long, obtuse, tapering 



