236 COMPOSITE. Gnaplialium. 



lucral bracts with brownish or somewhat whitish tips, obtuse. — Pacif. II. Rep. iv. 1 10 ; Eothr. 

 ill Wheeler Rep. vi. 157. — Eastern Eocky Momitaiu region, from Wyoming to New Mexico, 

 and to Mount Agassiz, Arizona; first collected by Fremont. 



* * * Involucre of the few and naked heads nearly f^labrons, brown : female flowers comjiara- 

 tiveh' few, only twice or thrice the mimber of the hermaphrodite: akeiies broader and tlalter: 

 small and low alpine perennial. — Onudotheca, Cass., DC. 



G. SUpinum, Vill. Cespitose : leaves white-woolly, mainly in radical tufts, linear, less 

 tlian inch long, 2 or 4 on the (inch to span high) simple slender flowering stems, which bear 

 2 to 7 spicately disposed heads. — Delph. iii. 192; Engh Bot. t. 1193; Hook. Fl. i. 329; 

 Torr. & Gray, 1. c. (x. pusillnm, Hoenke; Schkuhr, Ilandb. t. 267. Omahtheca supina, DC. 

 Prodr. vi. 245. — Alpine region of the White Mountains, N. Hampshire, and Labrador. 

 (Greenland, Eu., Asia.) __ 



§ 2. GamochJ;ta. Bristles of the pappus united in a ring at base and decid- 

 uous together from the akene : heads spicately or sometimes capitately glomerate, 

 the lower glomerules leafy bracteate : involucre brownish, purplish, or sordid. — 

 Gamocho'ta, Wedd. Chlor. And. i. 151. 



* Northern (also European) species, perennials : stems strict and simple : akenes fusiform, hispidu- 

 lous-pubescent. 



G. Norvegicum, Gunner, a span or two high, silvery-woolly throughout : leaves spatu- 

 late-lanceolate, acute ; the radical often 6 inclies long and half-inch wide ; cauline sp"arse : 

 heads in the upper axils and in an oblong spike :, involucre 3 lines long, dark brown or the 

 bracts with a lighter centre. — Fl. Norveg. 105 (Fl. Dan. t. 254); Synie^ Engl. Bot. t. 744. 

 G. siilvuticnm. Smith (not L.) ; Torr. & Gray, Fl. ii. 429. G. sijlvaticum, var. fuscatufn, 

 Wahl. ; D(\ Prodr. vi. 232. G.fascum, Lam. Diet., not Scop. — Labrador; Mount Albert, 

 Lower Canada, Allen. (Greenland, Eu.) 



G. sylvaticum, L. A span to a foot or more high, more leafy : leaves linear or the lowest 

 linear-oblanceolate, glabrous or glabrate above : heads numerous in an elongated and leafy 

 virgate-spiciform inflorescence : involucre light-colored ; the bracts usually only brownish- 

 tipped or with a brown spot below the hyaline-scarious tip. — Spec. ii. 856 ; Fl. Dan. t. 1229 ; 

 Syme, 1. c, t. 743. G. rectum, Smith, Engl. Bot. — New Brunswick, roadsides and muddy 

 shores of the Bay of Chaleur.s, Fowler, Macoun. Perhaps introduced. (Eu., N. Asia.) 



* * More southern, and wliolly American, annuals or biennials, chiefly of the sea-coast or near it. 

 G. purpureum, L. Canescent with a silvery dense and close coating of white wool, some- 

 times becoming flocculeut, simple or branched from the base : stems erect or ascending, 6 to 

 20 inches high : leaves spatulafe, obtuse, usually becoming glabrate and green above : heads 

 in a cylindraceous or oblong or in a more elongated sjDiciform inflorescence : involucre 

 (2 lines long) brownish, often tinged with purple : akenes sparsely scabrous. — Spec. ii. 854 

 (pi. Gronov. & Dill. Elth.) ; Michx. Fl. ii. 127; Torr.' & Gray, Fl. ii. 428; Klatt in Linn, 

 xlii. 140. G. spicalum, spathulatum, stack if d I folium, &Jalcatum (narrow-leaved form), Lam. 

 Diet. ii. 757, &c. G. Americannm (Mill. Diet.?), Willd. Spec. iii. 1887. G. Pennsijlvanicam, 

 WiUd. Enum. 867. G. hyemale, Walt. Car. 203. G. Chamlssonis, DC. Prodr. vi. 233. 

 G. ttstulatiun, Nutt. Trans. Am. Phil. Soc. 1. c, ex char. And many other extra-North- 

 American sj^nonyms : polymorplunis. — Coast of Mass. to Texas, and interior of Arkansas ; 

 also Washington Terr, to S. California and Arizona, in saline soil. (Mex., S. Amer.) 



62. Inula, L, (Old Latin name of Elecampane.) — A large and varied 

 Old World genus, chiefly of perennial yellow-flowered herbs, with alternate sim- 

 ple leaves, sometimes tomentose, but not floccose-woolly. Section Corvisartia 

 (Helenium, Adans., not L., Corvisartia, Merat & Cass.) consists mainly of 



I. Heli^nium, L. (Elecampane, i. e. Ennla ccunpana of the herbalists.) A coarse and tall 



herl), in tufts from large perennial (Ititter-mucilaginons) roots: leaves large, esjiecially the 



jietioled ovate radical ones, denticulate, tomentose beneath ; cauline sessile, partly clasi)ing : 



, he:ids very large, solitaiy or few terminating tlie stem or flowering branches : outer bracts 



of the involucre ovate and foliaceous ; inner smaller, obovate and spatulate, obtuse : rays very 



