198 Rosaceae 



** Leaves 3-5-foliate; stems prickly. 



2. B. leucodermis Dougl. (RASPBERRY.) Stems erect, 4-8 

 dm. high, glaucous, armed with stout, straight or recurved 

 prickles ; leaves 3-foliate or rarely 5-foliate ; leaflets ovate to 

 lanceolate-acuminate, doubly serrate, white tomentose beneath ; 

 the veins, petioles and peduncles prickly; stipules setaceous; 

 flowers few, corymbose, 1 cm. broad ; sepals lanceolate, long acu- 

 minate, exceeding the petals ; ovaries tomentose ; fruit separat- 

 ing from the receptacle when ripe, yellowish red with a white 

 bloom and agreeable flavor. 



Occasional in all our mountains in the pine belt. May-June. 



3. B. vitifolius C. & S. (BRAMBLE or BLACKBERRY.) Stems 

 woody, weak and trailing or suberect, somewhat glaucous, 

 armed with straight, slender prickles, 1-6 m. long; leaves pin- 

 nately 3-5-foliate or those of the flowering branches only deeply 

 lobed; leaflets ovate to oblong, coarsely toothed, glabrous or 

 more or less pubescent ; flowers imperfect, staminate large with 

 elongated petals ; pistillate small with broad petals ; fruit per- 

 sistent on the receptacle, oblong, black and sweet. 



Frequent in the foothills and valleys, mostly along streams. January- 

 April. 



4. POTENTIAL A L. 



Ours perennial or rarely annual herbs with digitately 

 or pinnately compound leaves and cymose yellow perfect 

 flowers. Calyx persistent, its tube concave or hemi- 

 spheric, 5-bracteolate, 5-lobed. Petals 5, mostly obovate 

 and emarginate. Stamens commonly 20, inserted on 

 an annular disk very near the base of the receptacle ; 

 filaments filiform or spatulate but not flattened. Pis- 

 tils many, becoming dry achenes in fruit, inserted on 

 a hemispheric or conic receptacle ; style terminal or 

 nearly so, deciduous ; ovules pendulous, anatropous. 



1. P. multijuga Lehm. Perennial; stems erect, 3-7 dm. 

 high, slightly silky-strigose, more or less leafy; stipules large, 1-2 

 cm. long, ovate, entire; basal leaves numerous, often 2-3 dm. 

 long, slightly hairy or glabrate, pinnate with 6-13 pairs of leaflets ; 

 leaflets obovate, cuneate, 1-4 cm. long, coarsely toothed above 



