Aphpappus. COMPOSITE. 129 



a woolly form. — Plains of the Saskatchewan to .Montana, and along the mountains to Utah 

 and Colorado; first coU. by Drummond. ^'a^ies much in size, especially of the head; in the 

 larger forms much broader than high, and very many-flowered. 

 A. lanoeolatus, Tokr. & Gray, 1. c. Habit of the preceding: stems generally more leafy 

 and bearing 3 to 15 heads; these when few subcorymbose, when more numerous racemosely 

 or paniculately ilispuscd : involucre in the type fully half-inch high; its bracts rather closely 

 imbricated in 3 or 4 unequal series, lanceolate, acutish, with short green tips and whitish 

 coriaceous base; outer successively shorter, occasionally some of them longer and more 

 herbaceous. Such forms, when heads are very few or solitary, effect a transition to the 

 foregoing species. — Eaton, Bot. King Exp. IGO. £>onia Innceolala, Hook. 1. u. Hoimpappus 

 (Arhnirp/ioria) mulbflorus, Xutt. I.e. —Plains of Saskatchewan to the borders of Brit. 

 Columbia, Idaho, and X. Nevada ; first coll. by Drummond. The more robust form, as ith 

 few and large heads, usually corymbosely disposed, and rays 30 or 40 in number and half- 

 inch long, passes freely into 

 "^^ Var. Vaseyi, Parry in Eaton, 1. c., with heads a third or f|uite half smaller, dis])osed 

 to be racemose, and involucre closer. — Saskatchewan to ^Vyoming, Utah, and Colorado. 



Var. tenuioaulis {A. tenuicaulis, Haton, 1. c. ), is an extreme very .slender and marked 

 variety sometimes a foot high and bearing several racemose heads, sometimes more de- 

 pauperate and only a span hi^h : heads only 3 or 4 lines high : rays correspondingly reduced : 

 involucre close, with short green tips. — Alkaline meadows, Xe\ada and Utah, first coll. by 

 Watson. Apparently a form with laciuiate leaves, in alkaline soil, E. Oregon, Cusick. 



•(— •)— Perennial her'js from a lignescent multicipital caudex or suffruticose base, with slender and 

 branchmg stems, leafy up to the small heads; leaves all narrow and quite entii-e: involucre tur- 

 binate or obovate {4 or 5 lines high) ; its bracts well iinhricated, appressed, charlaceo-coriaceous, 

 w-ith short and abrupt acute green tips, or these wanting in some: rays 7 to 10. with oblong 

 llgules: disk-llowers not numerous: style-appendages ovate to narrow-lanceolate (thus distin- 

 guished from the Ericamcria section, to which there is an approach). 



A . multioaulis, Gray. A'ery dwarf, tufted, tomentulose, but early glabrate and smooth : 

 stems 1 to 3 inches high from a ligneous caudex, simple or forked, bearing 3 or 4 leaves and 

 few heads ■ leaves narrowly linear, or the lowest obscurely spatulate (about inch long) : bracts 

 of the involucre large and rather few (9 to 14), from oiate to oblong-lanceolate, cuspidate- 

 acuminate, marked with a green spot below the slender cusp, or the oiitermcj.-t with a larger 

 follaceous tip: rays few^ : style-appendages ovate-triangular, lialf tlie length of the stigmatic 

 portion : pappus scanty, somewhat fnlvous. — Am. Xat. viii. 213. StenoUis mulltcaulis, Xutt. 

 Trans. Am. Phil. Soc. 1. c. 335 ; Torr. & Gray, PL ii. 238 — Dn rocks. Rocky Moitntains of 

 X. AV. ^A^yoming, Naltall, Geyer, PaiTy. 



A . Hallii, Gray. A foot or two high, paniculately branched from a suffrutescent or even 

 more woody base, glabrous, very leafy: leaves lanceolate or linear, short (larger over inch 

 long, 3 lines wide and spatulate-lanceolate), rather rigid, mostly scabrous (at least the mar- 

 gins) ; midrib prominent beneath and commonly some lateral veins: heads paniculate, 

 terminating short branchlets or sometimes rather congested : involucral bracts broadish- 

 linear, imbricated in several ranks, the outer successively shorter, the short tips merely 

 mucronate-acute : rays about 10 : style-appendages lanceolate, rather obtuse, about tlie length 

 of stigmatic portion : pappus barely sordid. — Proc. Am. Acad. viii. 389, first described from 

 mere branchlets, and these not well de\'eloped. — Base of the Cascade ^Mountains, Oregon 

 and Washington Terr., Hall, Howell, Siikfihrj] Prinyle. 



H— -p— ^— Annual or perennial herbs, branching, leaf}': leaves not rigid, spiiiulosely dentate or 

 pinnatifid, the teeth and tips commonly bristle-tipped: heads middle-sized or small: involucre 

 hemispherical, of well-imhricated narrow bracts, the outer successive)}' shorter: rays conspicu- 

 ous, mostly numerous: pappus rather rigid, its bristles vers- unequal in size and strength. 

 (Analogue of ilnchrprnnthera in Aster.) — § BUpltarodon, DC, excl. spec. 

 ++ Akenes short-furhiiiate, not compressed, obscurely .5-10-nerved under the canescent villosity: 

 style-appendaRCs short and broad, ovate or deltoid: rays 18 to 2.5, deep golden yellow: leaves 

 not deeply cleft, 

 A. aureus, Gray. Perennial? and branched from the base, at first lightly lannginous, 

 minutely scabrous-glandular, a span or two high : leaves all narrowly lirear, sparingly pin- 

 natifid-clentate, at least toward the base (an inch or less long) : heads 4 lines high : bracts of 

 the involucre linear-oblong, mostly obtuse and muticous ; the outer ones with short deltoid- 



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