428 COMPOSITE. Hicradum. 



-1— H— -I— •)— Not crinite (yet sometimes scattered b'istles on the involucre and panicle), bnt at 

 least the radical leaves and base of stem sparsely or even thickly setose-hirsute with long 

 spreading hairs. 



++ Flowers white: stems leafy and in larger plants loosely branching, depauperate or subalpine 

 plants even scapose: involucre 18—30-flowered : akenes linear-coluuiuar ((nily a line and a half 

 long), not at all narrowed upward: pappus sordid: leaves entire or denticulate. 



H. albiflorum, Hook. A foot to a yard high, smaller plants with simple ,and larger witli 

 coniponud open corymbiform-panicnlate cyme, leaves obluug, thin (2 to 4 or larger 5 to 6 

 inches long), npper with usnally narrowed sessile base, lower tapering into petiole : involucre 

 narrow-campanulate, 4 or 5 lines high, of linear-lanceolate bracts, pale or livid, mostly gla- 

 brous or nearly so, not rarely a few bristly hairs. — Fl. i. 298; Torr. & Gray, Fl. ii. 479; 

 Fries, Symb. Hier. 143; Gray, Bot. Calif, i. 440. — Open dry woods. Rocky jNIouutains, 

 from lat. 56° to Colorado and Utah, and Brit. Columbia to mountains of S. California ; fir.st 

 coll. by Druiiniioud. II. Vanroncerianiim, Arvet-Touvet, Spicil. Hier. 10 (at least specimens 

 coll. Lyall distributed from Kew as " H. Scouleri"), is of this species, and doubtless white- 

 flowered. 



•H- ++ Flowers yellow: stems more or less leafy, except in var. of IT. cynoylossoides: involucre 

 15-30-flowered, oblong-campanulate, of rather numerous narrow and acute or acutish bracts: 

 akenes columnar, not at all tapering upward, not over a line and a half long: pappus from sor- 

 did to dull white. 



= Leaves or many of them salient-dentate : pappus whitish. 



H. argutum, Nutt. A foot or two high, slender, hirsute with long shaggy hairs at base of 

 stem, glabrous or merely puberulent al)Ove and throughout the very lax diffuse naked pani- 

 cle ; leaves numerous at and near the base of the stem, broadlv lanceolate (or radical oblong- 

 spatulate), acute or acuminate, ta])eriug into margined petioles, larger ones 4 inches long, 

 half or two-thirds inch wide, each margin with 4 or 5 salient triangular teeth ; upper ones 

 liuear aud entire, much reduced in size (1 to 3 lines wide) : peduncles elongated and with 

 the involucre more or less dark-glandular, sometimes a few scattered dark hairs. — Trans. 

 Am. Phil. Soc. vii 447. — Hills behind Santa Barbara, California, A'«/^«// (specimen not 

 seen), Eothrock, who found it in Bartlett's Canon, young, color of flowers uncertain; Santa 

 Lucia Mountains, Parri/, an almost naked-stemmed form with radical leaves merely dentic- 

 ulate, the involucre and peduncles less glandular and more scurfy -puberulent ; corollas cer- 

 tainly yellow. Also coll. by Htenke? if Pllosella arr/iita, Schultz Bip. in Flora, 1862, 438. 



H. Parishii, Gray. Leafy up into the narrowly oblong panicle, puberulent above, Avith no 

 glandular hairs or stipitate glands: lower leaves shaggy-hirsute (along with base of stem), 

 elongated-lanceolate (5 to 8 inches long, half-inch or more wide), tapering- to the base or 

 margined petiole, with 5 to 8 salient teeth to each margin ; iipjier leaves linear-lanceolate, 

 entire, those subtending lower branches of panicle (2 inches long) little shorter than they: 

 peduncles seldom much longer and often shorter than the heads : involucre ])ale, granulose- 

 puberulent. — Proc. Am. Acad. xix. 67. — Bock-crevices, San Bernardino Mountains, S. E. 

 California, Parish. 



= == Leaves all entire, or merely repand, or slightly denticulate. 



H. Rusbyi, Greene. Leafy-stemmed, 2 feet or more high, bearing numerous compound- 

 paniculate heads : stem hirsute below, above smooth and glabrous up to the rather short- 

 peduncled heads : leaves all elongated-oblong ; cauline little diminishe<l in size upward (3 or 4 

 inches long), cjuite entire, mostly half-clasj)ing at base : involucre 3 lines high, pale, barely 

 puberulent: akenes short-columnar, blackish: pappus sordid. — Bull. Torr. Club, ix. 64; 

 Gray, Proc. Am. Acad. xix. 69. — Mogollon Mountains, New Mexico, Busbi/. 



Var. "Wrightii, Gray, 1. c. More robust and branching: bristles of the stem truly 

 hispid from papilliform base : branches and even peduncles setulose-hispidulous, and the latter 

 obscurely glandular : sometimes a few small bristles near the tips of the involucral bracts : 

 pappus dull whit*. — Crepis aml>i</i((i, Gray, PI. Wright, i. 129, not PI. Fendl. — W. borders 

 of Texas, between the Limpio and the Kio Grande, Wriijlit. 



H. cynoglossoid.es, Arvet. Stem a foot or less high (either from naked base or more 

 commonly a radical tuft of leaves), simple, 2-several-leaved, bearing few or several cymosely 

 disposed heads, setose-hirsute or hispid at base, either hispidulous or glabrous above : leaves 

 lanceolate to spatulate-oblong, at least the lower conspicuously setose-hirsute ; upper some- 



