CATALOGUE. 79 



Northern Mexico. Found in the Wahsatch Mountains, Utah ; 5-6,000 feet 

 altitude ; May, June. (297.) 



Lathyeus ornatus, Nutt. Glabrous or subYillous-pubescent, somewhat 

 glaucous; stems ascending, 6'-l° high, simple or branched, angular; stip- 

 ules lanceolate, semi-sagittate, entire; leaflets 4-7 pairs, J-1' long, lance- 

 olate-linear or oblong, acute, mucronate, rigid and strongly veined, tendril 

 very short; peduncles equaling or exceeding the leaves, about 4-(3-8-) flow- 

 ered ; flowers 1' long, bright purple ; calyx-teeth lanceolate, slightly unequal, 

 shorter than the tube. — On the Upper Missouri and Platte. Found in the 

 Wahsatch Mountains, near Salt Lake City; 5,000 feet altitude; May. De- 

 scribed by Nuttall as glabrous, bu.t these specimens, like others from Colo 

 rado, are villous-pubescent. (298.) 



ROSACEA. 



Peunus Andeksonii, Gray. Proc. Amer. Acad. 7. 337. Very glabrous ; 

 branches thorny ; leaves fascicled, small, (4-12" long,) oblong or lanceolate- 

 spatulate, attenuate into a slender petiole, obtuse or occasionally acute, deli- 

 cately veined and somewhat nerved, without glands ; flowers 2—3 in the axils, 

 on rather long pedicels, (2-3" ;) calyx ebracteolate, with the lobes entire and 

 shorter than the turbinate tube ; petals 3" long, rose-color ; ovary and base 

 of the style very hirsute ; drupe puberulent, somewhat fleshy, subglobose. — 

 A diff"usely branched shrub, 2-3° high, the flowers appearing with the leaves, 

 which are apparently convolute in estivation; the fruit is half an inch in 

 diameter, scarcely eatable, with an orbicular subcompressed stone, which is 

 acutely pointed, rather sharply margined and nearly smooth. Collected by 

 Dr. Anderson and Dr. Torrey near Carson City, and frequent on the foot-hills 

 of the Washoe, Trinity and West Humboldt Mountains, Nevada; 5,000 feet 

 altitude; April-June. (299.) 



Peunus emaeginata, Walp. (Cerasus, Dougl.) Leaves oval, oblong or 

 oblanceolate, usually obtuse and often emarginate, nearly glabrous, bi-gland- 

 ular ; corymb few-flowered ; calyx-segments ovate, obtuse, reflexed ; drupes 

 globose. — C. mollis, Dougl, with somewhat tomentose-pubescent leaves and 

 calyx, is referred to this species. Oregon and Northern California, and col- 

 lected by Dr. Anderson near Carson City, Nevada. Found in the Washoe 

 Mountains near the same locality ; a straggling bush, 4° high, without leaf or 

 flower in April ; 7,000 feet altitude. (300.) 



