CATALOGUE. 145 



Bigelovia Parkyi, Gray. — Woody at base, 1° high, at first softly 

 tomentose, at length nearly glabrous ; leaves linear, 2-3' long, 2" wide ; 

 heads in a narrow thyrse, rather large; scales of the involucre loosely im- 

 bricated in about 3 series, acutish, or with the tips sometimes attenuated, about 

 12-flowered; teeth of the corolla rather large, tube puberulent; appendages 

 of the style subulate or filiform. — Twin Lakes, Colorado, at 9,800 feet 

 (453). (Linosyris Parryi, Gray, in Proc. Acad. Pliila. 1863, p. 66.) 



Bigelovia Bigelovii, Gray. — Woody at and a little above the base, 

 much branched from below ; whole plant somewhat ash-colored ; leaves 

 filiform, revolute, more or less recurved and scattering ; heads 4-6-fiowered, 

 in a raceme or slender panicle; scales of the involucre coriaceous, lanceolate, 

 often acute or acuminate and in 4 or 5 series ; pappus quite tawny, as long 

 as the very slender flower; achenia smooth, linear, 4-6-angled, and with 

 a broad epigynous disk ; appendages of the style long and filiform, a little 

 roughish under the lens. — Headwaters of the Arkansas in Colorado (454). 



Bigelovia graveolens, Gray. (Linosyris graveolens and albicanlis, T. 

 & G. Fl. 2, p. 231.) — Colorado, New Mexico, Arizona, Nevada, and Utah; 

 also var. albicaiilis, Gray, obtained from Nevada. 



Bigelovia Douglasii, Gray (Linosyris viscidiflora, T. & G), var. ser- 

 rulata, Gray; also var. tortifolia, Gray. — Twin Lakes, Colorado (413, 

 447). (478 is a broad-leaved form.) 



Solidago Californica, Nutt, var. ? — Stem simple, whole plant more or 

 less densely covered with a short pubescence ; leaves thickish, entire, oblong, 

 1-3' long and 2-9" wide; heads crowded into a dense, contracted panicle; 

 scales of the involucre thickish, obtuse, and the outer puberulent ; rays 6-8 

 (less numerous than the disk-flowers), large (2-3" long) ; achenia pubescent. 



This form (730) from Mount Graham, Arizona, and at an altitude of 

 9,000 feet, may prove a distinct species; believing, however, that its nearest 

 affinity is as above indicated, I place it here for the present. 



Solidago Virga-aurea, Linn., var. humilis, Gray. — (86 of Loew); 

 (409, 404), from Colorado, and a specimen without number, collected by 

 Loew from Mogollon Mesa in Arizona, 4,000 to 5,000 feet. Var. aliuna, 

 Bigel. (407), Half-Moon Creek, Colorado, at 12,000 feet altitude. 



Solidago Guiradonis, Gray (Proc. Amer. Acad, vi, p. 543). — Nevada. 



10 BOT 



