430 COMPOSITiE. Hieracium. 



++++++++++ Flowers white or flesh-colored: akenes slender-columnar, hardly narrowed 

 upward, about the length of the brirjht wIiUk suft pnppus: stem leafy. (Transition to C'repis.) 



ET. carneum, Greene. Wholly glabrous and smuoth except below : stem slender, 2 feet or 

 more high, loosely paniculate-branched, glancesceut, its base and the oblong or lanceolate 

 subsessile radical leaves beset with long villous-setiforra hairs : cauliiie leaves narrowly-lance- 

 olate to linear, entire, very smooth, some of tlie lower sparsely jjiliferous : heads scattered in 

 the corymbiform or irregular panicle : involucre campanulate, 4 or 5 lines high, pale, of 

 narrow linear-lanceolate bracts, 1 5-20-fiowered : corollas light rose-color: akenes 2 lines 

 long. — Bot. Gazette, vi. 184; Gray, 1. c. 69. — Mountains of Kevv Mexico, Greene. Also 

 coll. by Bigelow or Wriylit. Huachaca Mountains, S. Arizona, Lemmon. 



H. Lemmoni, Gray. Villously or hirsutely setose throughout up to the racemiform close 

 thyrsus: stem simple, 2 feet or more higli, very leafy: leaves tliinnish, lanceolate-oblong, 

 denticulate with callous o;- glandular teeth ; caullne ])artly clasping, acute ; lowest oblong- 

 spatulate, 4 to 7 inches long, tapering into winged petioles ; those of radical cluster wanting : 

 heads numerous and crowded in the obloug thyrsus, 4 lines high, 12-20-tlowered : involucre 

 g]al)rous or nearly so, not glandular, not longer tlian the canescently ])uberulent peduncles; 

 its principal bracts narrowly linear, greenisli-iivid, obtuse : corollas short, seemingly white : 

 akenes hardly 2 lines long, slender, obscurely if at all narrowed upward when mature but 

 obviously so when younger : pappus less co])ious than in the preceding, bright wliite. — 

 Proc. Am. Acad. xix. 70. — S. Arizona, at Bear Spring, Cave Canon, near Fort Huachuca, 

 Lemmon. A species of Mexican type, of the group Thi/rsoidea of Fries. 

 H. ABScissuM, Less., a Mexican species (with habit of H. Lemmoni, but less leafy), probably 



also including //. thyrsoicleum, Fries, is said, in Fries, Epicrisis, 1.50, to come from " Texas ad 



Malpays de la Jcyas'' (an unrecognized locality), and from "Alabama." 



227. CREPIS, L. (Nume used by Pliny for some now unknown plant, 

 from KpYjTTi'i, a boot or sandal.) — Chiefly a European genus, of annuals or })eren- 

 nials, with soft white jiappus and narrow-necked or beaked akenes, some with 

 truncate or merely upwardly attenuate akenes ; the involucre apt to be thickened 

 at base, and leaves to be iiinnatifid. Flowers in all ours yellow. — Torr. & Gray, 

 Fl. ii. 487 ; Benth. & Hook. Gen. ii. 513. 



* Annuals or hardly biennials, sparingly introduced from Europe : akenes beakless or nearly so: 

 bracts of involucre thickening and becoming more or less rigid at base after anthesis. 



C. vfnExs, L. A foot or two high, erect or ascending : leaves from dentate to laciniate-pin- 

 natifid, spatulate to lanceolate; cauline with sagittate somewhat clasjjing base: heads 

 slender-peduucled, small: involucre 3 or 4 lines higli : akenes oblong, 10-striate, smooth, 

 slightly and aliout equally contracted at both ends. — Vill. Fl. Delph. iii. 142. C polijmor- 

 pha, Wallr. ; DC. Prodr. vii. 162, mainly. Miilnruthrix crepoldcs, Gray, Pacif. R. Pep. xii. 

 49, & Crepis Cooperi, Gray, Proc. Am. Acad. ix. 214, a small and diffuse somewhat naked- 

 stemmed form, with scattered heads. — At landings and near towns on the Columbia Iliver, 

 Oregon and Washington Terr., probably at fir.st a ballast-weed. (Nat. from Eu.) 



C. TECTORUM, L. Usually more slender: leaves narrow, less or not at all sagittate at base : 

 akenes fusiform, with gradually attenuate summit, upwardly scabrous on the ribs. — A 

 ballast-weed at New York Harbor. In fields at Lansing, ISliclugan. (Nat. from Eu.) 



C. BIENNIS, L. Generally larger, more pubescent or hirsute, leafy-stemmed : leaves runcinate- 

 pinnatind, or some of the lower spatulate and l)arely dentate; cauline with .sagittate-dentate 

 base: involucre 4 to 6 lines high, broadly campanulate, somewhat canescently pubescent and 

 hispidulous : akenes oblong with narrower summit, l.'J-striate, smooth. — Engl. IJot. t. 149; 

 DC. Prodr. vii. 163 (excl. var. Americana) ; Keichenb. Ic. Fl. Germ. t. 1439. — Waste grounds, 

 Vermont, Privcjh. (Nat. from Eu.) 



* * Perennials, indigenous westward or northward : akenes beakless or short-beaked. 



+- Low or deyiressed, branched from base, glaucescent and wliolly glabrous, bearing numerous 

 clustered and narrow short-peduncled head.s: involucre cylindrical, 8-14-tl(Pwered, of 8 to 10 

 smooth !ind narrowly liTiear obtuse eipial bracts, in a single series (unciumged in fruit except by 

 thickened midrib close to the base in C. nana), and 3 or 4 sliort calyculale ones at base: akenes 



