Bigelovia. COMPOSITE. 141 



B. nudata, T>C. Glabrous : stems slender, a foot or two high from a small caudex, strict 

 aud simple up to the compouud-fastigiate and corymbose cyme of numerous heads : leaves 

 not punctate nor obviously viscid, spatulate to nearly filiform, uppermost small and bract- 

 like : heads barely 3 lines high, subclavate : bracts of the involucre about 3 in each rather 

 indistinct vertical rank, oblong-linear, obtuse and firm-chartaceous, or at least outermost 

 with sliort greenish tips. Leaves in the original of the species spatulate-linear, or uppermost 

 narrower, lowest and radical commonly broader (sometimes half-inch wide) and rounded- 

 obtuse. — Prodr. V. 329, & Mem. Comp. t. 5 B. nudata, var. spathuUf folia, Torr. & Gray, Fl. 

 ii. 232. Chrijsocoma inidata, Michx. Fl. ii. 101 ; Nutt. Gen. ii. 137. — Low pine barrens. New 

 Jersej' to Florida and Louisiana; fl. autumn. 



Var. virgata, Tore. & Gray, 1. c. Cauline leaves linear-filiform, or lowest and the 

 radical linear-spatulate. — B. vinjala, DC. 1. c. Chrysocouia virgata, i^utt. 1. c. — New Jersey 

 to Texas. Passes into the broader-leaved form. 



§ 4. EuTHAMiopsis. Heads (small) 7-25-flowered : bracts of the involucre 

 wholly chartaceous, or in some obscurely greenish at tip, hardly carinate, obtuse 

 or nearly so and muticous, appressed-imbricated in 3 or 4 series, but vertical ranks 

 inconspicuous : style-appendages hiirdly exserted out of the 5-lobed limb of the 

 corolla, subulate-oblong to short-filiform, shorter or not longer than the stigmatic 

 portion : akenes mostly short and turbinate, sericeous-pubescent : shrubby, be- 

 coming more or less balsamic-viscid, and with entire punctate leaves : corollas of 

 outermost flowers sometimes deformed. — § Aplodiscus, Euthamioidece, mainly, 

 Gray, Proc. Am. Acad. viii. 639. 



* Stems simple below and fastigiateh' branched above, 3 to 12 feet high, bearing numerous heads 

 in close and ample cor^'mbiform cymes: leaves plane; involucral bracts small, lanceolate, wholly 

 chartaceous and pale, or niidnerve obscurely greenish. 



B. Parishii, Greene. Leaves thickish, lanceolate or oblong-linear (inch or two long, 

 quarter to nearly half an inch wide), mucronate, strongly punctate : heads 10-12-flowered, 

 fully 3 lines long). — Bull. Torr. Club, ix. 62. — Mountains near San Bernardino, S. E. 

 California, Parish, &c. Stems sometimes 2 or 3 inches in diameter. 



B. arborascens, Gray. Leaves narrowly linear, very numerous (1 to 3 inches long, a line 

 wide), moderately punctate: heads ■20-25-flowered, barely 3 lines long: outer flowers often 

 deformed. — Proc. Am. Acad. viii. 640. Linosi/ris arborescens, Grjy, Bot. Mex. Bound. 79. 

 — Dry ground, common in the Coast Ranges of California, sparingly in the Sierra Nevada ; 

 first coll. by Fitch and Kellogg. 



* * Branched from the base : heads paniculate or more scattered : leaves filiform, thickish : bracts 

 of involucre larger and rather few, oblong, obtuse. 



B. Cooperi, Gray. Apparently low, with leaves half-inch or less long, balsamic-viscid : 

 heads few in a cluster at the end of the branchlets, 6-8-flowered : bracts of involucre nar- 

 rowly oblong, chartaceous, pale to the apex : style-appendages ovate-subulate. — Proc. Am. 

 Acad. viii. 640, & Bot. Calif, i. 315. — S. E. California, on eastern slope of Providence 

 Mountains, Cooper. Not again found : only branchlets known. 

 B. brachylepis, Gray. Shrub 4 to 6 feet high : leaves inch or half-inch long, balsamic- 

 viscid, conspicuously resinous-punctate : heads loosely paniculate or solitary terminating 

 paniculate branchlets, 8-12-flowered, 4 or 5 lines high : bracts of the campajiulate involucre 

 oblong, more or less carinate by a glandular thickened midnerve ; innermost not surpassing 

 the linear-oblong akenes, outermost passing into small commonly imbricated scales on the 

 peduncle : style-appendages subulate-filiform. — Bot. Calif, i. 614. — S. California, along the 

 southern borders of San Diego Co., near the Mexican frontier. Palmer, Cleveland, Nevin. 

 (Adj. Lower Calif.) 



B. DIFFUSA, Gray, Proc. Am. Acad. viii. 640 (Linosyris Sonoriensis, Gray, 1. c. 291, Eri- 

 cameria diffusa, Benth. Bot. Sulph. 23, Solidago diffusa. Gray, Proc. Am. Acad. v. 159), of 

 Lower California {Iliuds, Xantns) and Sonora {Palmer), is a species of this group, with filiform 

 leaves obscurely punctate, and involucral bracts of firmer texture, the tips greenish, verging 

 therefore to the next section. 



