316 COMPOSITE. Bigehvia. 



10, all thin, lanceolate, gradually acuminate, and wholly destitute of green tips, 

 except perhaps an outermost one passing into a bract : style-appendages much 

 exserted, long and subulate-filiforrn : akenes linear, slender, silky- villous. 



Sierra Nevada at Mono Pass, at 9 to 10,000 feet, Bolander. Much like Aplopappus Macronema 

 (which was found near by, and might almost as well be of this genus) ; but the heads narrower, 

 few-flowered, the outer scales of the involucre successively shorter and not foliaceous. 



5. B. Howardii, Gray, 1. c. Low, more or less shrubby, coated with some 

 <M^ close white wool when young, almost naked when old : leaves rigid, 1-nerved, linear, 



1 or 2 inches long, the upper forming bracts to the somewhat spicate heads or clus- 

 ters : involucre narrow, only 5-flowered; its scales 12 to 15, regularly imbricated, 

 broadly lanceolate, more or less cobwebby-woolly, particularly at the margins, 

 abruptly and conspicuously acuminate, the outermost with a more or less foliaceous 

 appendage, the inner with a slender cusp : style-appendages much exserted, long 

 and subulate-filiform : akenes linear, silky-villous. — Linosyris Howardii, Parry. 



Var. Nevadensis, Gray, 1. c. More rigid, especially the leaves, which incline 

 to be oblanceolate and indistinctly 3-nerved : involucre more cobwebby and some- 

 times glutinous, as well as more coriaceous, and with longer-tapering somewhat 

 recurving tips. 



Sierra Nevada, at Mono Pass, alt. 10,000 feet : a stunted form, Bolander. The var. Nevadensis 

 at Ebbett's Pass, alt. 9,000 feet (Brewer), and in N. W. Nevada, Bloomer, Anderson, Watson, 

 &c. The typical form chiefly in Colorado and N. E. New Mexico. Heads 8 or 9 lines long. 

 This var. Nevadciisis, which is at least a very marked variety, inclines to have its involncral 

 scales in 5 rather obvious vertical ranks, and so connects the preceding with the succeeding 

 species. 



6. B. ceruminosa, Gray, 1. c. Shrubby, fastigiately much branched, 2 or 3 

 feet high, minutely woolly-pubescent when young, becoming glabrate and usually 

 balsamic-resinous with age : leaves filiform or narrowly linear with involute margins 

 (an inch or less long) ; those of the flowering branches scattered, their tips often 

 recurved or uncinate : heads in small and naked terminal clusters, barely 3 lines 

 long, 5-fiowered : involucre very narrow, resinous ; the lanceolate carinate scales 

 imbricated in 5 strict vertical ranks, yellowish, the keel extended into a long and 

 slender recurved tail-like acumination : limb of the corolla rather deeply 5-lobed, its 

 lobes linear-lanceolate : ovary silky-pubescent : pappus rather scanty : style-append- 

 ages very slender. — Linosyris ceruminosa, Durand & Hilgard, PL Heerm. and in 

 Pacif. E. Eep. v. 9, t. 6. 



Tejon Pass, Dr. Hcermann ; who only has as yet collected it. 



B. depressa, Gray, 1. c, Nuttall's Clirysotluimnus depressus, one of the three species with gla- 

 brous akenes as well as with involucral scales 5-ranked and taper-pointed, is said by Nuttaff in 

 PI. Gambel. to have been collected "in the Sierra of Upper California." This must be wrong ; 

 for Dr. Gambel's own specimens are ticketed "Rocky Mountains," and were in all probability 

 collected in the mountains of New Mexico, where alone others have met with this species. 



7. B. teretifolia, Gray, 1. c. Shrubby, corymbosely very much branched, a 

 foot or less in height, copiously balsamic-resinous, glabrous : leaves filiform, obtuse 

 or somewhat thickened upwards, half an inch to an inch long, thickly resinous- 



1 l/T punctate,. minutely pruinose-hoary, but soon coated with transparent resinous exuda- 

 tion : heads almost half an inch long, numerous in somewhat spicate or racemose 

 clusters, 5-flowered : involucre very narrow ; its scales imbricated in 4 or 5 vertical 

 ranks, carinate, all with small and abrupt thickish obtuse green tips, the inner 

 linear-oblong, the outer successively shorter and passing into very short scale-like 

 bracts : lobes of the corolla very short : akenes linear, silky-pubescent : style append- 

 ages long and filiform. — Linosyris teretifolia, Durand & Hilgard, 1. c. t. 7. 



Common on the bare mountains around Tejon Valley, Dr. ITeerwann. "A small shrub, 

 strongly varnished and smelling of fir-balsam, covering extensive tracts of land." Also collected, 

 but past flowering, at Union Pass, Arizona, by Dr. E. Palmer. The small green tip of the invo- 

 lucral scales commonly bears a gland. 



