62 ROSACEA, (rose family.) 



1. N. opulifolia, Bentli. & Hook. A shrub 3 to 10 ft. high, with slender spreading 

 or recurved branches and ash-colored shreddy bark; leaves ovate to cordate, 3-lobed and 

 toothed, 1 to 3 inches long. 



5. RUBUS, L. 5&t 



Calyx persistent 5-lobed. Petals 5, conspicuous. Stamens numerous. Carpels nume» 

 ous, on a convex receptacle, becoming small globose 1 -seeded drupes, forming a com* 

 pound berry. — Fruit edible. 



§ 1. Fi'uit with a bloom, separating from the receptacle when ripe. 



Leaves simple, palmately lobed; stem soft, woody Nutkanus. 1 



Leaves 3-foliolate, or on the flowering branches simple, rarely 5-foliolate; stems soft, 

 woody, prickly — 



Flowers large, red spectabilis. 2 



Flowers white teucodennis. 3 



Stems herbaceous, trailing unarmed pedatus. 4 



§ 2. Fruit persistent, black and shining; stems prickly, flowers white ursinus, 5 



L R. Nutkanus, Moc. (Thimble-berry.) Stems erect, 3 to 8 ft. high; older bark 

 shreddy, no prickles; leaves 4 to 12 inches broad; flowers large white, rarely rose -col- 

 ored, an inch or more across; fruit red, large. 



2. R. spectabilis, Pursh. (Salmon-berry. ) Stems 5 to 10 ft. high, similar to the 

 last, but armed with a few prickles. Distinguished by its large red flowers and cylin- 

 drical-ovoid yellow or purplish berries. 



Var. Menziesii, Wat. Densely tomentose and silky. 



3. R. leucodermis, Dougl. (Easpberry. ) Maybe known by its leaflets, white, 

 tomentose beneath, prickly stem, white flowers, and its yellowish red white-bloomed 

 fruit. 



4. R. pedatus. Smith. Stems slender pubescent; leaflets cuneate-obovate, an inch 

 or less in length; flowers white; the at length reflexed sepals exceeding the petals; berry 

 of only 3 to 6 large red pulpy drupelets. 



5. R. ursinus, Cham. & Schl. (Blackberry. ) Stems weak or trailing, 5 to 20 ft. 

 long; fruit oblong. 



6. CERCOCARPUS, HBK. 



Calyx narrow, tubular, the campanulate 5-lobed limb deciduous. Petals none. Sta- 

 mens in 2 or 3 rows on the limb of the calyx. Carpels solitary. Fruit a villous akene, 

 included in the enlarged calyx-tube, tailed with the elongated exserted plumose twisted 

 style. 



Evergreen shrubs or trees. C. ledifolius, Nutt. is the ISIountaix Mahogany of 

 th'^ Sierra Nevada. The foUo'wing is found in the Coast Range. 



