Bhnnospa-ma. COMPOSITE. 343 



•■— =» Var. pygm^a. Depressed, rising only 2 inches high, the head suLsessile in the tuft 

 of leavc-s : rays saffron or rose-colored. — .van Bernardino Co., on the summit of Greyback 

 Mountain, Lmimon, W. G. Wright, and Bear \'alley. Parish. 



H. algida, Ge.i.y. a span or two high from a deep perennial rootstock, the villous or cot- 

 tony -n-ool caduc<ius. viscid pubescence remaining : sti-iu .simple, stout, terminated b\- a solitary 

 short-peduncled large head: leaves liuear-lingulate, irregularlv dentate, sonjeiimes iiith 

 large s.ilient teeth; lower crowded (2 to 5 inches long, quarter to half inch ^^ide), u[iiier 

 gradually smaller and sparser: involucre almost inch high and broad; its bracts linear, 

 attenuate-acute, lax, villose-lanate and viscid : rays very numerous, linear, nearly half-inch 

 long, yellow : pappus short, not exceeding the breadth of the akene, e.jualled bv its hairs ; 

 the paleoe deeply fimbriate-lacerate. — Proc. Am. Acad. vi. 547, Bot. t'alif. i. :is6. Cali- 

 fornia, on the higher summits of the .sierra Nevada, from Mount Dana southward. Brewer, 

 Dol.mder, ilnir, on Mount Whitney up to 13,700 feet, Rothrock. 



H. nana, Gray. X span high from long brandling rootstocks rising through volcanic ashes 

 and scoriic, villous-lanate when young, viscid-pubescent : leaves crowded around base of the 

 thickisli (inch or two long, or ^ometimes very short) monocephalous peduncle, oblong >patu- 

 late, pinuatifid or incised, mostly tapering into a margined petiole : involucre half-inch or 

 more high, of lanceolate liracts : rays about 30, yellow, broadly linear, nearly half-inch long : 

 paleoe of the pappus (either broad or apparently splitting into narrower ones) usually longer 

 than the breadth of the akene, equalled by its \illous hairs, incisely or fimbriately lacerate. 

 — Pacif. E. Eep. vi. 7(5. t. 13, Bot. Calif. 1. c. — Volcanic peaks of the Cascade Mountains, 

 <Jregou, Stirlu-rrij, Ciisick, to 'Wasbington Terr., Suhsthirf. 



Var. Larseni, Gr-^t, Bot. Calif. 1. c. More wooUy even in age, and leaves somewhat 

 scattered on the flowering stems, even up to the head : rays smaller. — California, in volcanic 

 ashes on peaks of northern part of the Sierra Xevada, such as Shasta and Lassen ; first coll. 

 by Lemmon and Larsen. 



* * Apparently quite destitute of floccose wool from the first, but with some long and soft many- 

 jointed and viscldulous hairs: stems mostly simple, equably leafy to the top, bearing solitary or 

 somewhat racemosely disposed short-pedunculate heads: paleee of the pappus conspicuous, 

 oblong or narrower, the two over the angles longer. 



H. tieteroclironia, Gray. Rather stout, sometimes over 2 feet high from an annual root : 

 leaves oMong, saliently dentate : involucre two-thirds or three-fourths inch high, of linear- 

 lanceolate attenuate-acute bracts : rays very numerous, 3 or 4 lines long, rose-purple, some- 

 times inconsfiicuous or obsolete : tube of disk-corollas hirsute : shorter paleas of tlie pappus 

 trnncate-lacerate. — Proc. Am. Acad. vii. 369, & Bot. Calif. 1. c. — California, from the Yo- 

 semite, Bolander, to the mountains of .'^an Bernardino Co., Lemmon, Parish. 



H. brevif olia, Gray, 1. c. Slender, a foot high from an annual or possibly perennial root, the 

 stem or simple branches bearing a solitary comparatively small and narrow^ head : leaves 

 small (the largest inch and a half long), spatrdate-oblong, denticulate : involucre half-inch 

 higli. of linear rather loose bracts : rays only 10 or 12, 3 or 4 lines long, light yellow : palese 

 of the pappus rather entire. — California, along the Merced in and near the Yoseiuite 

 "N'alley, Bulamh:r, &c. 



155. TRICHOPTlLIUM, Gray. (Qpi'f, rptx"'?. hair, and TrTtAoi', feather 

 or plumage, the pappus-palese feathery-dissected.) — Single species, vellow-tlow- 

 ered winter annual ; fl. spring. 



T. incisum, Gray. Diffusely branched, low and spreading, loosely floccose-wooUy. also 

 somewhat pubescent and glandular: lea\es oblong-rhomboidal or cuneate-lanceolate, incisely 

 and acutely dentate, alternate or the lower opposite : heads scarcely half-inch high, on slen- 

 der peduncles terminating stem and branches. — Bot. Mex. Botmd. 97, Pacif. R. Rep. v. t. 5, 

 & Bot. Calif, i. 395. Psathijrotes liicisa. Gray, PI. Thurb. 322. — Arid district of the 

 Mohave, Lower Colorado, and Gila, W. Arizona and S. E. California; first coll. by Fremont. 



156. BLENNOSPERMA, Les,?. (BXkwa, mucu.s. cnripixa, seed; the 

 akenes developing copious mucus when wetted ; that is, the cluh-shaped papillae 

 then swell up through imbibition, open at the apex, or else split into two -sahes. 

 and emit a pair of uncoiling filaments of extreme tenuity, m the manner of 



