Orepis. COMPOSITiE. 431 



narrow, lO-etriate, the summit with a more or less dilated disk bearing the Foft deciduous pap- 

 pus. — Younffia, Ledeb., &c., not ijass. 



C. nana, Uhhards. Forming depressed tuft? on slender creeping rootstocks: leaves 

 chieHv radical (inch or two long, including petiole or attenuate l)il^e), oliovate to spatulate, 

 entile, repaud-deutate, or lyrate, commonly erjualling the clustered scapes or steins: head^^ 

 in fruit half-inch high or nearly : akeues linear, unequally costate, oljscurely contracted 

 under the moderately dilated pappiferous di^k. — App. Frankl. Joum. cJ. 2, 92; Hook. 

 App. Parry Voy. 397, t. 1, & Fl. i. 297 ; Torr. & Gray, Fl. ii. 4^S. Hieracinm, etc., Gmel. Fl. 

 Sibir. ii. 20, t. 7. Pirnanthe; p'fym"_ii, Ledeb. in Mem. Acad. Petro].. v. 53.3. P. polijnmrjiha, 

 Ledeb. Fl. Alt. iv. 144. Bnr/.hainin nana, DC. Prodr. rii. 156. Youmjia piigvum, Ledeb. 

 Fl. Ross. ii. 838. — Arctic coast and islands, and alpine mountain summit.-; south to Colorado 

 and the Sierra Nevada in California. (X. Asia.) 



C. elegans, Hook. Many-stemmed from a, perennial tap-root, a span to a foot high, 

 diffusely branched: leaves entire or nearly so; radical spatulate, cattline from lanceolate to 

 linear: head > smaller or narrower than in the pjreceding: akenes linear-fusiform, minutely 

 scabrous on the equal narrow ribs, attenuate into a short slender beak, which is discoid 

 dilated at summit. — Fl. i. 297 ; DC. Prodr. vii. 172; Torr. & Gray, 1. c. B'trkhausia elegans, 

 Xutt. Trans. Am. Phil. Soe. vii. 435. — Sa.-katchewan district to Dakota and 3iIontana; first 

 coll. by Drurnmond. 



+— ^— Muro robust and taller, with scapiform or few- leaved stems and larger heads: akenes 

 thicker, not discoid-dilated at the insertion of tlie pappus. 



++ Xo furfuraceous f-r canescent pubescence: foliage mostly glabrous: involucre campanulate, 

 many-flowered; its bract.^ lanceolate or linear, acute, li:t!e thickened below after flowering: 

 thick root possibly biennial, probably perennial : heads few or several and loosely corymbosely 

 cymose: pappus not remarkably copious. — Crcpidium^ Xutt. 

 C. glauca, ToEK. & Grat. F'stially scapose, a foot or two high, glancescent or glaucous : 

 radical leaves from obovate-spatulate to lanceolate, from entire to laciniate-jjinnatifid : invo- 

 lucre 4 lines high, glabrous or nearly so, as also the peduncles : akenes oblong, with .-lightly 

 narrowed summit, strongly and evenly 10-costate. — Fl. iL438; Eaton, Bot. King Exp. 203 ; 

 Gray, Bot. Calif, i. 436. Crepidium (/laucum, Xutt. Trans. Am. Phil. Soc. vii. 436. — Moist 

 and saline ground, Saskatchewan and Nebraska, Utah and Nevada. Probably Arizona 

 (Rothrorh), but specimen too young and leafy, and peduncles sparingly bispidulous-glaudu- 

 lar. Crepidium caulescens, Nutt. 1. c, is probably a somewhat leafy-stemmed form. 

 C. runcinata, ToiiR. & Gray, 1. c. Not glaucous or slightly so, a foot or two high: radi- 

 cal leaves obovate-oblong to oblong-lanceolate, from repand to runcinate-pinnatifid with short 

 lobes or teeth ; cauline none, or small and narrow at the forks : involucre half-inch high or 

 smaller, pubescent, often hirsute, sometimes (with peduncles and upper part of scape) 

 glandular-hispidulous : akenes narrowly oblong, moderately narrowed upward, somewhat 

 evenly 10-costate. — C. biennis, var., Hook. Fl. i. 297, not L. C. biennis, var. Americana, 

 DC. Prodr. vii. 163. Hiemrium runcinatum, James in Long E.xped. i. 453; Torr. in Ann. 

 L\c. N. Y. ii. 209. Crepidium runcinatum, Nutt. 1. c. — Saskatchewan to Montana and 

 south to Colorado and Utah, in subalpine swamps; first coU. by James. 

 C. Andersoni, Gray. Not glaucous, a foot or more high ; lea\es laciniately pinnatifid or 

 dentate, but not runcinate : involucre half to three-fourths inch high, cinereous-pubescent, of 

 broader and firmer bracts, more imbricated, outermost oblong- to ovate-lanceolate : akenes 

 fasiform, unequally S-10-costate, tapering into a, short but manifest beak. — Proc. Am. 

 Acad. vi. 553, & Bot. Calif, i. 436. — Eastern Sierra Nevada, California and adjacent Nevada, 

 in low grounds : a form with a cauline leaf or two in uplands ; first coll. by Anderson. 

 ++ ++ Furfuraceous- or cinereous-pubescent, at lea-t the foliage, sometimes also hirsute, deep- 

 rooted perennials, more or less leafy-stemmed : akenes oblong to fusiform, beakles=. ]0-12-co=- 

 tate: pappus of very copious bristles, persistent: bracts of involucre at length with more or 

 less thickened or carinate midrib, at least the base: leaves usually laciniate-pinnatifid. — Crepis 

 § Leplo'heca &: Psili,cleniii, Nutt. Trans. Am. Phil. Sue. vii. 437, but false character of akenes 

 of the latter, and outer flowers not sterile. Species difficult. 

 = Principal bracts of the narrow involucre and flowers 5 to 8 : no hirsute pubescence : pappus 

 moderatelj' copious and soft. 

 C acuminata Nltt. 1. c. Minutely cinereously-puberuleut below, but green : stem slen- 

 der 1 to 3 feet high, 1-3-leaved, bearing a fastigiate or corymbiform cyme of numerous 



