Aplopappus. COMPOSITE. 129 



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

 and Colorado; first coll. by Drummoml. Varies much in size, especially of the head; in tlie 

 larger forms much hroader thau high, aud very many-flowered. 

 A. lanceolatus, Torr. & Gray, 1. c. Hahit of the preceding : stems generally more leafy 

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

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

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

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

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

 foregoing species. — Eaton, Bot. King Exp. 1 GO. Donia lanceolaia, Hook. 1. c. lloinopappus 

 (Actinaphoria) multiflorns, Nutt. I.e. — Plains of Saskatchewan to tiie borders of Brit. 

 Columbia, Idaho, and N. Nevada; first coll. by Drummmd. The more robust form, with 

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

 inch long, passes freely into 



Var. Vaseyi, P.vkry in Eaton, !. c, with heads a third or (juite half smaller, dispo.sed 

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



Var. teiiuicaulis (-1. tcnmcaul in, 'Fj2iion, 1. c), is an extreme very slender and marked 

 variety, sometimes a foot higli and bearing several ra(!emose lieails, sometimes more de- 

 pauperate and only a span high : heads only 3 or 4 lines higli ; rays corresjwndingly reduced : 

 involucre close, with shoi't green tips. — Alkaline meadows, Nevada and Utah, first coll. by 

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



■i— -i— Perennial herbs from a ligne.scent midticipital caudex or siiffriiticose base, with slender and 

 branchnig stems, leafy up to the small heads: leaves all narrow and quite entire: involucre tur- 

 binate or obovatc (4 or 5 hnes high) ; its bracts well imlmcated, a[)pressed, cliarlaceo-coriaccous, 

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

 ligules: disk-tlowers not numerous: style-appendages ovate to narrow-lanceolate (thus distin- 

 guished from the Ericavieria section, to which there is an approacli). 



A. multicaulis, Gray. Very dwarf, tufted, tomentulose, but early glabrate and smooth : 

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

 few h.eads . leaves narrowly' linear, or the lowest obscurely spatulate (about inch long) : bracts 

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

 acuminate, marked with a green spot below the slender cusp, or tlie outermost with a larger 

 foliaceous tip : rays few : style-appendages ovate-triangular, half the length of the stigmatic 

 portion : pappus scant}^ somewhat fulvous. — Am. Nat. viii. 213. Slenolns mulliamhs, Nutt. 

 Trans. Am. Phil. Soc. 1. c. 335 ; Torr. & Gray, Fl. ii. 238. — On rocks. Rocky Mountains of 

 N. W. Wyoming, Nultall, Oeijer, Parry. 



A. Hallii, Gray. A foot or two high, paniculately liranchod fr(un a suffrutescent or even 

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

 long, 3 lines wide aud spatulatedanceolate), 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 : involncral bracts broadish- 

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

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

 of stigmatii; ]iortiou : pajjpus barely sordid. — Proc. Am. Acad. viii. 389, fii'st described from 

 mere branchlets, and these not well developed. — Ba.se of the Cascade Mountains, Oregon 

 and Washington Terr., Hall, Howell, SiiksJorf, Priiu/le. 



H— -I— -f— Annual or perennial herbs, branching, leaf}': leaves not rigid, spinuloscly dentate or 

 pinnatifid, the teeth aud tips commonly bri.stle-tijjped: heads middle-sized or small: involucre 

 hemispherical, of wcll-iinbricatcd narrow bracts, the outer successively shorter : rays conspicu- 

 OU.S, mostly numerous: pappns rather rigid, its bristles very unequal in size and strength. 

 (Analogue of MacJiceranlhera in Aster.) — § Blej)h(iro(lon, DC, excl. spec. 



++ Akenes short-turbinate, not compressed, obscurely 5-10-nervcd under the cauesceut villosity: 

 style-appeiidatres 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 tin; base, at first lightly hinuginous, 

 minutely scabrous-glandular, a span or two high : leaves all narrowly linear, sparingly piu- 

 natifid-dentate, at least toward the ba.«e (an inch or less long) : heads 4 lines high : bracts of 

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



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