52 BOTANY. 



spinose-toothed to the middle,) coriaceous, pinnately veined ; flowers blue, 

 subumbeled, terminal— Evergreen, matting the ground; young leaves 

 silky-canescent ; capsule usually solitary, vs'ith 3 strong protuberances, 4" in 

 diameter. Sierras of Northern and Middle California. Found only on the 

 Washoe Mountains, Nevada, under pines; 5-7,500 feet altitude; May. 

 (213.) 



SAPINDACE^. 



AcEK GEANDiDENTATUM, Nutt. Leaves cordate or truncate at base, rather 

 deeply 3-lobed, with broad round sinuses ; lobes rather acute, coarsely sinuate- 

 dentate ; the umbel-like corymb nearly sessile, few-flowered, the pedicels 

 long and nodding; fruit glabrous, with diverging wings. — Collected by 

 Nuttall, probably in the Wahsatch, and by Douglas on the head-waters of 

 the Columbia. Frequent in the canons of the "Wahsatch, rarely attaining 1° 

 in diameter and 30-40° in height. The leaf has the outline of that of A. 

 7nacrophyllum, but is only 3-5' in breadth. Fruit broadly winged, 1' long. 



C214.) 



Acer glabrum, Torr. {A. tripartitmn, Nutt.) Leaves subreniform- 

 orbicular in outline, 3-lobed or more usually 3-partedj the segments short 

 and broad, acutely incised and toothed, somewhat 3-lobed, the middle one 

 cuneate; corymb umbeled, pedunculate, few-flowered; sepals about 8, linear- 

 oblong ; petals wanting ; fruit glabrous, wings broad, diverging. — A shrub, 

 6-10° high, with variable foliage. From Washington Territory to Colorado, 

 New Mexico, and California. Eare in the East Humboldt Mountains, Nevada ; 

 more frequent in the Wahsatch and Uintas ; 6-10,000 feet altitude. (215.) 



Negundo aceeoides, Moench. From Florida to Pennsylvania and Wis- 

 consin and northward, on the Red River and Saskatchewan, to latitude 54° ; 

 in the valleys of the Rocky Mountains from New Mexico northward, and in 

 California. Found only in the Wahsatch, Utah, but there very abundant ; 

 5-6,000 feet altitude. (216.) 



ANACARDIACE^. 



Rhus glabra, L. From West Florida to the Mississippi, northward to 

 Canada and the Saskatchewan, and westward in the Indian Territory and 



