148 COMPOSITE. Solidago. 



Var. scopulorum, Gray, 1. c. More glabrous, 3 to 18 inches high, commonly strict : 

 heads when numerous in a more open or compound cluster, mostly smaller : bracts of the 

 involucre closer, shorter, and merely acute. — S. corymbosa, Nutt. 1. c. (S. heterophylla in 

 herb.). — Along the higher Eocky Mountains to New Mexico, Utah, &c, the Cascade Moun-' 

 tains, and rare (in a dwarf state) along the Sierra Nevada. 



Var. Neo-Mexioana. Two feet high, with numerous heads more loosely disposed 

 in approximate axillary as well as terminal clusters, composing a narrow elongated thyrsus, 

 somewhat like that of S. macrophylla. — High summits of the Mogollon Mountains, 

 N. Mexico, Rusby. A doubtful plant. 

 S. Virgaurea, L. Of this Old World and polymorphous or confused species, the var. alpes- 

 tris (of which <S. macrophylla is the American representative) reaches the Asiatic side of Beh- 

 ring Strait, and seems to pass into S. multiradiata. The var. Cambrica is represented by 



Var. alpina, Bigel. Dwarf, 2 to 8 inches high, obscurely pubescent or glabrous : 

 leaves few, thickish, spatulate or obovate, mostly obtuse; cauline sessile, the uppermost 

 lanceolate, lowest and radical narrowed into a margined petiole : heads (4 lines long) 3 to 7 

 in a terminal cluster, or also subsolitary in uppermost axils : involucre broad ; its bracts 

 rather broadly lanceolate, barely acute: akenes pubescent. — Fl. Bost. ed. 2, 307; Torr. & 

 Gray, 1. c. — Alpine summits of the mountains of N. New York, New England, and Lower 

 Canada, on Anticosti, and Hudson's Bay ? Seems nearly to pass into S. humilis, and like 

 that to be somewhat viscid. 



++ ++ Bracts of the involucre obtuse. 



S. h-firn ill's, Pcrsh. Glabrous, disposed to be glutinous, bright green : stems strict, a span 

 to a foot high, leafy : leaves of firm texture and fine venation, smooth ; cauline all sessile ; 

 upper lanceolate to nearly linear, entire ; lower and radical becoming spatulate with long 

 attenuate base, sparingly appressed-serrate above the middle : heads (3-J- or 4 lines long), 

 rather crowded in a narrow racemiform paniculate simple or sparingly branched thyrsus 

 (which is leafy below and naked above) : bracts of the involucre oblong-linear : akenes pu- 

 bescent. — M. ii. 543 (the Newfoundland plant, in herb. Banks, where Solander indicated 

 the species) ; Hook. Fl. ii. 5 ; Torr. & Gray, Fl. ii. 206, not of Desf. & DC. 5. stricla, Hook. 

 1. u., partly. S. Virgaurea, var. humilis, Gray, Man. 241. — Eocky ground, Newfoundland to 

 Saskatchewan and Eocky Mountains, Northern New England, and at two remarkable south- 

 ern stations in the Atlantic States (viz. on the Susquehanna, York Co., Penn., Porter, and 

 Great Falls of the Potomac, Eobbins, Vasey) : in the Eocky Mountains south to New Mexico 

 and Utah, perhaps also Sierra Nevada in California, there too like S. multiradiata, var. scopu- 

 lorum. The typical plant is narrow-leaved, with slender but rigid stems and virgate inflo- 

 rescence : it often becomes larger, broad-leaved, and with ample compound thyrsus ; and on 

 mountains occurs a dwarfer broad-leaved form, passing to 



Var. nana. A western alpine form, analogous to S. Virgaurea, var. alpina, 2 to 5 

 inches high, with spatulate to obovate leaves, and few heads in a close glomerule, or more 

 numerous in a spiciform thyrsus. — S. Virgaurea, var. humilis, Gray, Proc. Am. Acad. viii. 

 389. S. Virgaurea, var. alpina, Eothrock in Wheeler Eep. vi. 145. — High Eocky Moun- 

 tains, Colorado (first coll. by Parry), and the Cascades of Oregon and Washington Terr., 

 Hall, Howell, Suksdorf. 



Var. Gillmani, Gray, Proc. Am. Acad. xvii. 191. Large, 2 feet high, rigid, in cul- 

 tivation with compound ample panicle, and laciniate-dentate leaves. — Sand-hills of the Lake 

 shores, N. Michigan, Gillman, W. Boott. 



S. confertiflora, DC. A foot or two high, strict, rigid, sometimes strikingly glutinous or 

 resiniferous : leaves nearly of the preceding : heads smaller and numerous, fewer-flowered, 

 crowded in a virgate or pyramidal compound thyrsus. — Prodr. v. 339 ; Fisch. & Meyer, 

 Ind. Sem. Petrop. (1840), vii. 57. S.glutinosa, Nutt. Trans. Am. Phil. Soc. I.e. 328. — Coast 

 of Brit. Columbia to Oregon, first collected by Hainlce, with inflorescence incompletely evo- 

 lute. Shoalwater Bay, Cooper. Sauvie's Island, Howell. Near Portland, Pringle, in a form 

 too near S. humilis. 



•*— H— -K- 4— Calif ornian coast species : rays inconspicuous, shorter than the disk. 



S. spathulata, DC. Glabrous, glutinous : stem a foot high, few-leaved, terminated by a 

 single spiciform thyrsus, the upper clusters of which are monocephalous, the lower 2-5-ceph- 

 alous, and about equalled by the small subtending leaves : lower and radical leaves spatulate, 



