SYNOPSIS OF THE FLORA OF COLORADO. 19 



flowered ; sepals about 8, linear-oblong ; petals wanting ; fruit glabrous, 

 wings broad, diverging. Along water-courses among the mountains. 

 Dr. Smith; Coulter. 



XEGUNDO ACEROIDES, Moench. Canon City, Brandegee. Along tlie 

 riatte, Coulter. 



ANACARDIACE^E. 



EHVS GLABRA, L. Golden City, Greene. 



EHUS TOXICODENDRON, L. Grows on dry slopes. Poisonous. Turkey 

 Creek, Coulter. 



RHUS AROMATICA, Ait., var. TRILOBATA, Gr. (R. trilobata 'Suit.) A 

 much-branched shrub, 3-6 high, smooth or with the leaves and young- 

 branches minutely pubescent; leaves trifoliate, paler beneath, lateral 

 leaflets obovate, obtuse, 3-lobed at the apex, or nearly entire ; terminal 

 leaflet larger, cuneiform, 3-lobed at the summit, I'-IJ' in length. Emit- 

 ting a heavy, disagreeable odor when bruised. Distinguished from the 

 eastern form by its greater size, smaller leaves, and smoother drupes. 

 Dr. Smith ; B. H. Smith. Common on the mesas near Colorado Springs, 

 Porter. Clear Creek Canon, Coulter. 



POLYGALA VERTICILLATA, L. Dudley's Ranch, on Clear Creek, 



Greene. 



RHOMBIFOLIA, Kutt. Perennial; stems erect, 8 / -12 / 

 high, angular, nearly smooth; leaves petioled; leaflets obovate-cuiiei- 

 forin, silky-puberuleut, at length nearly glabrous ; stipules ovate or cor- 

 date, acute, as long as the petioles; flowers yellow, alternate or in 

 pairs, lance-oval, shorter than the pedicels ; calyx-short, teeth triangular, 

 acute, the upper lip 2-toothed ; legumes elongated, falcate, pendulous, 

 glabrous, about 3' long. Hall tt Harbour, 107 ; Canty. 



THERMOPSIS FABACEA, DC., var. MONTANA, Gr. Somewhat pubescent ; 

 stems numerous, branched; leaflets l'-3' long, oblanceolate, obtuse; 

 stipules oblong-ovate, exceeding the petioles; legumes downy, 2 / -3 / 

 long, linear-oblong, erect, nearly straight, about 10-seeded. Middle ele- 

 vations in the mountains and on the plains. Canty. Four miles from 

 Denver on Clear Creek, Coulter. South Park, Porter. 



LUPIXUS ORNATUS, Dougl. Watson's Revision, in Proc. Amer. Acad- 

 v. 8, p. 528. Stems decumbent or ascending ; pubescence usually short, more 

 or less silky, mostly appressed; stipules setaceous; leaflets 5-7, ob- 

 lanceolate or cuneate-oblong; J'-2' long, acute or acutish; raceme 

 3'-8' long, usually short-peduncled ; bracts short, subulate or ovate; 

 pedicels ^"-3" long; bractlets setaceous; calyx-lips nearly equal, the 

 upper rather shortly toothed or bifid, the lower subentire ; petals blue, 

 equal, 5 / -7 // long, the banner acutish sub-silky on the back, keel cili- 

 ate; ovules 5-8; pod 1J 7 long, 3"-." wide. 



Var. GLABRATUS, Watson. Leaflets glabrous above, cuneate-oblong, 

 acutish or obtuse ; flowers nearly white, with a dark purple spot upon 

 the banner. "Common in the mountains of Colorado." Hall & Harbour, 



1 THERMOPSIS, R. Br. Like Baptma (Gray's Manual, p. 142,) but with large, folia- 

 ceous stipules, and long, flat legumes. 



