192 



PUKSUIA TRIDENTATA, DC. Two to 5 (exc(3])t iouuUy 10) feet : Rocky Mountiiiu 

 region (aud from Arizona to Southern California): spreading, mucli- 

 brauclied, with gray or brown bark; young branches hairy ; iGavQssmall, 

 crowded, wedge-shaped, 3- to 5-lobed, white-woolly below; upper surface 

 of leaves with sticky glands; with pungent, balsamic odor; fruit velvety. 



COLEOGYNE IIAMOSISSIMA, Torr. Southern Colorado (to Nevada and Arizona); 

 spiny, spreading, much-branched, bark grayish; leaves leathery and wit-h 

 delicate hairs; flowers yellow, conspicuous. 



Clife Kose. Cowania Mexicana, Don. One to C feet : Now Mexico to Southern 

 Colorado (also in northern Mexico aud northern Utah): much-branched; 

 bark whitish, stringy; flowers yellow; seed (akene) with tail 2 inches 

 long. 



Eakly Wild Rose. Rosa hlanda, Ait. One to 3 feet : Eastern Montana (and east- 

 ward through northern half of United States) : wdth few delicate (or no) 

 prickles ; flowers pale rose-color. 



Rosa Sayi, Schwein. One to 2 feet: common from Colorado to Montana (eastward 



to northern Wisconsin) : thickly set with prickles ; flowers solitary. 

 'Rosa Akkansana, Porter. One to 6 feet: New Mexico to Montana (eastward to 

 the Upper Mississippi) : usually with closely-set prickles ; flowers clustered. 



Rosa Nutkana, Presl. One to 4 feet: northern Utah to Montana (westward to Ore- 

 gon aud northward) : thick stems with strong, straight to curve prickles ; 

 flowers single, 2 to 3 inches broad. 



Rosa 1>ndleri, Crepiu. Four to 8 feet : New Mexico (western Texas, Sierras, Cal- 

 ifornia, and northward beyond United States boundary) : with delicate 

 straight or curved prickles ; flowers small, single or clustered. 



Rosa Woodsii, Lindl. One-fourth to 3 feet : Colorado (to Missouri) and north w^ard 

 * through western Montana (and north of the United States boundary to the 

 Saskatchewan), plains aud valley : with delicate or curved prickles; flowers 

 single or clustered, H to 2 inches broad. 



Rosa gymnocarpa, Nntt. Three to 10 feet: northwestern Montana aud Idaho (also 

 on the Pacific coast) : prickles straight, delicate ; flowers single or few. 



June Berry. Service Berry. {AmelancMer ahnfoUa, Nutt.) .Three to 8 feet: 

 New Mexico to Montana westward to California ; eastward to the Missis- 

 sippi) : smooth or woolly ; flowers white, in cylindrical clusters ; fruit 

 ten-seeded, purple, edible. 



Perapiiyllum RAMOSissiMUM, Nutt. Four to 6 feet : southwestern Colorado (Utah, 

 California, aud Oregon) : exceedingly branched; bark gray ; flowers sin- 

 gle or two to three together ; light rose ; fruit globe-like, edible. 



Saxifragace^ : Saxifrage Famihj. 



Mock Orange, Syringa. Philadelphus microplu/llns, Gray. Southern Colorado and 

 southward: flowers single, or two to three together; w^hite, com^picuous. 



Jamesia Americana, Torr. &, Gray. Two to 3 feet: New Mexico, Colorado (and 

 Utah) : spreading, slim-branched shrub ; branchlets hairy, as are the leaves 

 below, but ivhUish; flowers in loose clusters. 



Fendlera rupicola, Eng. & Gray. Southern Colorado and southward : erect, 

 smooth, or hairy; flowers single, or two to three together ; white. 



Wild Gooseberries : 



Eibes Leptantlrum, Gray. One to 4 feet : Colorado, New Mexico (and in Sierras, 

 California): branches stifif; thorns single or in threes, large; flowers yel- 

 low, one or two together; fruit smooth. 

 Eibes divericaium, Dough, var. irriguitm, Gray. Five to 12 feet : Colorado to Or- 

 egon : spreading ; thorns single or in threes; flowers white, on 2- to 4-flo,v- 

 ered stems; fruit smooth, dark purple, pleasant. 



