ROSACES 43 



7. P. fraitico'sa, L. (SMRTTBBY C.) Stem erect, shrubby, 1-3 

 feet high, much branched. Loaves pinnate, of 5-7 leaflets, closely 

 crowded, entire, silky, especially beneath. Flowers numerous, 

 lanje, yellow, terminating the bi'anches. Bogs. 



8. P. tridenta'ta, Ait., (THREE-TOOTHED C.) is common east- 

 ward towards the sea-coast. Stem 4-6 inches high. Leaves 

 rii^id, palmate, of 3 wedge-shaped leaflets, 3 -toothed at the apex. 

 Petals white. 



^. P. palustris, Scop. (MARSH FIVE-FINGER. ) Stem ascend- 

 ing. Leaves pinnate, of 5-7 lanceolate, crowded, deeply serrate 

 leaflets, whitish beneath. Calyx an inch broad, dark purple 

 inside. Petals purple. Bogs. 



8. FRAGA'RIA, Tourn. STRAWBERRY. 



1. F. Virginia'na, Ehrhart. Achenes deeply imbedded in pits 

 on the surface of the fleshy receptacle ; calyx erect after flowering. 

 Leaflets firm. 



2. F. ves'ca, L. Achenes not sunk in pits, but merely on the 

 surface of the receptacle ; calyx spreading. Leaflets thin. 



9. DAIiIBAR'DA, L. DALIBARDA. 



D. repens, L. (Rubns Dalibarda, L., in Macoun's Catalogue.) 

 Stems tufted, downy. Whole plant with something of the aspect 

 of a violet. Low woods. 



1O. RUBUS, Tourn. BRAMBLE. 



1. R. odora'tus, L. (PURPLE FLOWERING-RASPBERRY.) 

 Shrubby, 3-5 feet high. Branches, peduncles, and calyx clammy 

 ivith glandular hairs. Floiuers large and handsome, rose-purple. 

 Leaves large, broadly ovate, 3-5 lobed, the lobes acute, minutely 

 toothed. Fruit fiat. 



2. R. triflo'rus, Richardson. (DWARF RASPBERRY.) Stems 

 ascending or trailing, a foot high, not prickly. Leaflets 3-5, nearly 

 smooth, rhombic-ovate, acute at both ends, doubly serrate. 

 Peduncle usually 3-flowered. Petals white ; sepals reflexed. 

 Fruit red. Cedar swamps. 



3. R. strigo'sus, Michx. (WILD RED RASPBERRY.) Stems 

 upright, beset with stiff straight bristles. Leaflets 3-5, oblong-ovate, 

 pointed, cut-serrate, whitish beneath. Fruit light red. Hill- 

 sides and thickets. 



