CATALOGUE. 53 



Northern New Mexico ; reported also from Oregon. Found only on tlie foot- 

 hills of the Wahsatch in Salt Lake Valley. (217.) 



Rhus Toxicodendkon, L. From Florida to the Rocky Mountains of 

 New Mexico, and northward to Canada and the Saskatchewan ; also on Mt. 

 Hood and the Blue Mountains of Oregon, (Douglas.) Found only in the 

 Wahsatch and on Antelope Island, Salt Lake; 5,000 feet altitude. (218.) 



Rhus aeomatioa, Ait., Var. teilobata, Gray. {R. trilobata, Nutt.) 

 Leaves small, rarely exceeding 1' in length, usually glabrous ; leaflets lobed, 

 the divisions entire or sparingly crenate. — Growing in dense leafy clumps, 

 3-6° high, and having a heavy disagreeable odor. It is the prevalent 

 western form, extending from Western Texas to Southern California, and 

 throughout the Rocky Mountains to the Upper Missouri. Found on the 

 foot-hills around Salt Lake Valley and at the north base of the Raft River 

 Mountains, Utah. (219.) 



LEGUMINOS^. 



Thermopsis fabacea, DC, Var. Montana, Gray. {S. montana, Nutt.) 

 Somewhat silky-pubescent ; leaflets (1-3' long) lanceolate, cuneate at base ; 

 stipules oblong-ovate, equaling or exceeding the petioles ; legumes (2-3' long) 

 linear, erect, nearly straight, somewhat silky, about 10-seeded. — Stems numer- 

 ous, branched, 1-2° high. S. macrophylla is apparently quite distinct. From 

 Southern California to New Mexico, and northward in the mountains to the 

 Columbia. On stream banks in Nevada and Utah, rather rare and usually 

 solitary; 5-6,000 feet altitude; June- August. (220.) 



LupiNUS pusiLLUS, Pursh. Annual, low, very hirsute branching from the 

 base ; leaflets 3-7, (more usually 5,) obovate-lanceolate, narrowed at the base, 

 rather obtuse, smoother above ; racemes spicate, usually short-peduncled ; 

 flowers alternate ; bracts persistent ; calyx ebracteolate, the upper lip 

 2-toothed, shorter than the obscurely 3-toothed lower one ; legumes hirsute, 

 about 2-seeded ; seeds orbicular, flattened. — Stems 3-9' high ; racemes often 

 on very short peduncles, 1-2' long; flowers light-blue, wings equaling the 

 keel; legumes f long ; seeds 1^-2" in diameter. From New Mexico and 

 Arizona to the Platte, California, and Washington Territory. Found in the 

 valleys of Western Nevada ; 5,000 feet altitude ; May, June. (221.) 



LupiNUS BEEViCAUliiS. Annual, hirsute ; stems very short (1-2' high ;) 

 leaflets 5-8, (usually 7,) obovate, narrowed at base, very obtuse or retuse ; 



