SYNOPSIS OF THE FLORA OF COLORADO. 63 



prominent : rays S-9, scarcely longer than the 10-12 flowers of the disk ; 

 achenia pubertdeut. 



Var. SPECTABILIS. D. C. Eaton, King's Rep., v. 5, p. 154. Stem stout, 

 3 : -4 high; lower and radical leaves broadly oblanceolate, S'-ii:' ioug, 

 $'-Ut' wide, the petiole dilated at the base, upper ones sessil ', lanceo- 

 late : panicle oblong, densely many-flowered ; heads rather large, invo- 

 lucral scales oblong-linear, mostly obtuse; flowers of the ray 12-15, of 

 the disk about 20. The affinities of this plant seem to us to connect it 

 rather with S. speciosa than S. Guiradonis. Glen Eyrie, Porter. Canon 

 City. Brandegee. 



SOLIDAGO PUAIILA. T. & G. Caespitose, glabrous and somewhat 

 resinous : stems 4'-9' high, very many from a stout underground woody 

 caudex; leaves crowded, narrowly lanceolate, strongly 3-nerved, very 

 acute and somewhat mucrouate, the radical ones 2 / -3 / long, 2"-3" wide, 

 narrowed into a short petiole ; heads sessile in little clusters, which are 

 arranged in a dense fastigiate corymb ; involucres cylindrical-oblong, 

 the closely imbricated scales cariuate, ovate or oblong, obtuse, with 

 scarions margins and appressed, scarcely herbaceous tips, rather obtuse ; 

 rays 1-3 ; disk flowers 3-4 ; achenia glabrous. Colorado, Vasey. 



SOLIDAGO RIGTDA. L., var. HU3HLIS, Porter. Stems 12 / -18 / high, slen- 

 der; cauline leaves oblong-lanceolate, mostly acute, very scabrous; 

 heads of flowers smaller ; scales of the involucres narrower. Rather 

 frequent. Wet Mountain Valley, Brandegee. Porter ; Coulter, ^"ear 

 Denver. Dr. Smith. 



SOLIDAGO XE^IOEALTS, Ait. Very variable, presenting in the Eocky 

 Mountain region a great diversity of forms, among which the most 

 conspicuous is 



Var. MOLLIS, Bartl. (!) FL X. Am., v. 1, p. 229. Stem-leaves obovate or 

 oval, crowded, oil en 2'-2 / long, I'-IJ' broad; low, about 1 high, rather 

 stout: branches of the panicle much contracted or somewhat spreading; 

 heads rather larger. Platte River near Denver, Dr. Smith. Twin Lakes , 

 Coulter. 



SOLIDAGO MISSOURIENSIS. Xutt. Hall & Harbour, 249. Eastern 

 plains of Colorado, Dr. Smith. Near Denver, Porter. 



SOLIDAGO CA^ADE>*SIS, L. Wet Mountain Valley, Brandegee. Eagle 

 River. Coulter. 



SOLIDAGO LA^CEOLATA, T. G. Hall & Harbour, 247. Canon City, 

 Brandegee. On the Platte, Dr. Smith. 



SOLIDAGO OCCIDENTALS. T. & G. Very near the last, but differs 

 in its more paniculate and less corymbose inflorescence ; flowering 

 branches more strict, with the upper leaves becoming very small and 

 linear: heads of tiowers pedicellate ; scales of the involucre loosely im- 

 bricated. Some of its forms, however, appear to approach S. lanceolata 

 too closely. Georgetown. Dr. Smith. 



BiGELOViA 1 HOWABDH, Gr., Proc. Am. Acad., v. 8. p. 641 (Linosyris How- 



'BIGELOVIA. DC. (Li.no9}fns. Lobel., CJirysothamnus, Xutt.) Heads 5-many-flow- 

 ered, the (yellow ) flowers all tubular and perfect. Involucre obconic or eanipauulate ; 

 the somewhat rigid and cariiiate scales imbricated in several series: the innermost 

 elongated: the outer ones shorter and passing into the leaves. Eeceptacle alveolate- 

 toothed, the teeth lacerate, or sometimes becoming cuspidate processes. Corollas 

 slender, the expanding limb 5-cleft. Style with flattened branches: the stigmatic 

 portion oblong or linear: the pubescent appendages lanceolate or often elongated. 

 Acheuia oblong, villous or pubescent, sometimes glabrous. Pappus of copious unequal 

 scabrous capillary bristles. Perennial herbs or surrrnticose plants, branched irorn the 

 base and corymbose or sub-pan icnlate at the summit, often resinous and having a 

 strong balsamic but unpleasant odor: leaves linear or lanceolate, sessile. 



