32 SYNOPSIS OF THE FLORA OF COLORADO. 



YICIA AMERICANA, Muhl. Common along nioun tain streams. Porter; 

 Coulter. 



VICIA TRUNCATA, Nutt. T. & G. Fl. N. Am. 1, p. 270. Somewhat 

 pubescent. Stem l-2 high ; leaflets 5-6 pairs, oblong-linear, usually 

 truncate-serrate or tridentate at the apex, apiculate, about I 7 long, l"-2" 

 wide ; stipules lunate, incisely-serrate ; peduncles 4-7-flowered, rather 

 shorter than the leaves ; lower teeth of the calyx lanceolate, acuminate, 

 upper ones very short ; style villous at the apex ; legume 1' or more long. 

 Our plant varies from NuttalPs description only in the shorter and broader 

 leaflets ; flowers 9" long. Canon City, Brandegee. 



VICIA MICRANTHA, Nutt. Glabrous, stam 2-3 long, strongly 

 angled, climbing; leaflets 6-12, 6"-9" long, 2" wide, oblong-elliptical, 

 obovate or linear-oblong, obtuse or emargiuate, mucronate ; stipules sub- 

 ulate and simple or semi-sagittate, small ; peduncle about 2-flowered, at 

 iirst much shorter than the leaves: flowers small, rarely solitary, pale r 

 blue at the tip; calyx hairy, teeth subulate, shorter than the tube; 

 legume f long, 3" wide, saber-shaped, glabrous, 5-6-seeded ; seeds com- 

 pressed, dark brown. Canon City, Brandegee. Golden City, Greene. 



LATHYRUS ORNATUS, Nutt. Erect, glabrous, often glaucous ; stem, 

 6'-l high, sometimes branched, quadrangular ; leaflets 3-4 pairs, 

 lanceolate-linear, acute, mucronate, rigid and strongly veined, tendrils 

 scarcely any ; stipules linear-lanceolate and slender, semi-sagittate, en- 

 tire ; peduncles about 4-flowered, longer than the leaves ; flowers large, 

 purple, V long, very showy calyx- teeth subulate, slightly unequal, 

 rather shorter than the tube ; pod smooth, flat, acuminate at each end* 

 Hall & Harbour, 109. On the plains. 



LATHYRUS LINEARIS, Nutt. Nearly glabrous, low ; stem decumbent,, 

 slender, angled; leaves nearly sessile; leaflets 5-6 pairs, narrowly- 

 linear, 8" 12" long, y'\." wide, mostly obtuse, apiculate, rigid .; tendril 

 short, simple or bifid ; stipules small, lanceolate, semi-sagittate, laciniate 

 with 2-5 very sharp, slender teeth ; peduncles 3-4-flowered, shorter than 

 the leaves ; flowers rather large, pale-purple ; segments of the calyx 

 triangular, shorter than the tubes ; legume attenuate at each end. Hall 

 & Harbour , 110. Near Denver, Dr. Smith. 



LATHYRUS POLYMORPHUS, Kutt. Mostly glabrous; stem erect, a 

 little woody at the base, much branched, a little quadrangular, about 1 

 high; leaflets 2-5 pairs, elliptical-lanceolate, somewhat glaucous, rigid, 

 strongly veined, petioles terminated by a small bristle ; stipules lanceolate, 

 subfalcate, semi-sagittate at base ; peduncles 3-5-flowered, rather shorter 

 than the leaves ; flowers large, purple ; segments of the calyx broadly 

 or narrowly subulate, somewhat unequal, shorter than the tube; legume 

 large, glabrous. Hall & Harbour, 111. Sierra Madre Eange, Coulter. 



LATHYRUS PUBESCENS, Nutt. (?) (L. venosus, Muhl., var. d.f Torr. 

 & Gr. Fl.N.Am.Z, p. 174. " Smaller, finely pubescent ; leaflets 3-5 pairs, 

 ovate-elliptical, smaller; stipules linear-lanceolate ; peduncles 5-7-tiow- 

 ered.") A. Lathy r us collected by Mr. Brandegee, on Newlan Creek, S. 

 Colorado, June 13, 1873, accords in the main with the variety or species 

 described above. Its characters are: Erect, l-2 high, softly and 

 finely pubescent throughout; leaflets 3-5 pairs, ovate, mucronate, 

 strongly veined; tendrils simple or bifid; stipules semi-sagittate, much 

 smaller than the leaflets; peduncles shorter than the leaves, and bear- 

 ing 2 rather small, white flowers. Legumes not seen. 



LATHYRUS PALUSTRIS, L. Gratfs Manual, p, 139. Hall & Harbour, 

 112. Plains of the Platte, Coulter. Canon City, Brandegee. 



