300 



COMPOSITE. BrkkelUa. 



B. OBLONGiKOi.iA, Nutt., all licil), witli laiiecolate-obloiig eutiie uikI sessile leaves, a lew ler- 

 iiiiiiul rather large ami iiiaiiy-llowered heads, and iiiiiiulely glandular akeiies, occurs along rivers 

 in Oregon, and may be exiiected in tlio northern part of the State. 



H. i.iNii OMA, I'liiton, like tiie ineeeding hut with nither narrower leaves, fewer heads, and mi- 

 nutely hispid akeiies, growing in Arizona and Nevada, may reach California, hut is less likely. 



H. IIASTATA, Ik'iitii., a cain'sceiit tomentose species, with opposite, liustately S-lobed leavo.s, 

 and coryinhosc 12-llowered luads, has been found only far down in Lower Califoniia. 



B. CuuLTEUl, (iray, with barely pubescent opposite hastate-triangular and sparsely toothed 

 leaves, and long-jMiduncIed about I'J-llowered heads, is known only by a specimen in Coulter's 

 collection, whicTi may not liave been collected within the State. Several plants of his "tlalifor- 

 nia" collection were gathered only in Arizona, or east of the Uio Colorado. 



* Iltdds about an inch lou;/ : scales of the involucre obtuse : plant woolli/. 



1. B. incana, (imy. I'huit piDhubly woody at base, white at least when 

 young with a clcpsc soil wool : leaves of the branches ovate or cordate, nearly 

 entire, sessile, alteiiialo (small), becoming naked and green with age : lieads soli- 

 tary terminating the loose branches, pt^duucled, very many-llowered : scales of the 

 involucre in 3 or 4 ranks, the outermost roundish, the inner linear-oblong : akenes 

 silky. — Proc. Am. Acad. vii. 350. 



Providence Mountains, San IJernadino Co., Dr. Cooper. 



* * Heads half to three quarters of an inch long : plants minuteli/ pubernlent or pu- 

 bescent, and more or less glandular or viscid. 



2. B. grandiflora, Nntt. Herbaceous, 2 or 3 feet high, simple or coryni- 

 bosely branching, not viscid : leaves cordate-triangular, acute or acuminate, thin- 

 nish, coarsely serrate, 2 or 3 inches long, on slender petioles ; the lower ojiposite, 

 uppermost alternate : heads numerous in a naked corymbose cyme : scales of the 

 involucre thin, mostly acute : akenes nearly' glabrous. 



l^ocky banks of streams in the Sierra Nevada (Yosemite Valley, &c.) ; and eastward through 

 the Rocky Mountains. Notwithstanding the iiainc of this species, the heads are only three 

 fourths of an inch long, or often shorter, cyliiidraceous, and less than half an inch broad. 



3. B. Californica, (Iray. Shrubby at base, 2 to 3 feet liigh, paniciilately 

 branched : leaves alternate, ovate, somewhat triangvdar, or sometimes slightly cor- 

 date, mostly obtuse, irregularly crenate-toothed, 3-ribbed from the base, veiny, 

 roughish (an inch or so in length), on short petioles : heads spicate or racemo.se 

 along the leafy branches, half an inch long, 10- l5-flowered : scales of the involu- 

 cre with thinnish mostly obtuse straight tips. — PL Fendl. 04. {Bulbostyiis, Torr. 

 & Gray, Fl. ii. 79.) B. Wrightii, Durand & Hilgard, Pacif. R. Pep. v. 8. 



Dry hillsides, fruin Mendocino Vo. nearly thiougli the State, and eastward at least to Utah. 



4. B. microphylla, dray, 1. c. More branched than tlie last, viscid and 

 glandular : leaves smaller and with acute teeth ; those of the branches almost ses- 

 sile, half an inch long or less : heads clustered at the ends of diverging branchlets, 

 smaller : scales of the involucre rigid, all but the innermost with squarrose-spread- 

 ing herbaceous tips. — Bulbostyiis microphylla, Nutt. 



Teliae Peak, near Lake Talioe {Lcminan) ; adjacent parts of Western Nevada {Torreij) ; thence 

 north and east to Oregon and Utah. 



4. ADENOSTYLES, Cass. 

 Head few - many-flowen'd. Involucre of a single scries of erect scales, or some- 

 times with one or two smaller and lax exterior ones additional. Peceptacle naked, 

 flat. Corollas dilated above the slender tube, the 5 lobes spreading. Brandies of 

 the style somewhat thickened upward. Akenes terete, 10-striate, glabrous. Pap- 

 pus of verj-- copious soft and white capillary bristles. — Perennial herbs, with simi)le 

 stems, alternate cordate or reniform leaves, mostly on long jietioles, and corymbose 

 heads of flpsh-colored, white, or (-ream-colored Uowers. — Benth. Sc Hook. (len. ii. 

 247. 



