ROSACES. (KOSE FAMILY.) 



as long as the calyx. (P. simplex, Michx.) Meadows in the upper districts, 

 July - August. Stem l-3loug. 



Var. pumila, Torr. & Gray. Csespitose, villous ; stems peduucle-like, 2'- 

 3' high, 1 -3-flowered, mostly shorter thau the leaves; leaflets small, obovate. 

 Dry woods iu the upper districts. 



3. P. supina, L. Annual, pubescent ; steins prostrate ; leaves pinnate ; 

 leaflets 7-9, obloug-obovate, coarsely serrate ; peduncles axillary, solitary ; 

 petals obovate, yellow, as long as the calyx ; achenia with a starchy append 

 age at the base. Banks of the Mississippi, Tennessee. August. 



* * Style /literal. 



4. P. tridentata, Ait. Stem somewhat shrubby at the base, erect or as- 

 cending, pubescent; leaves rigid, trifoliolate, cuneate-oblong, 3-toothed at the 

 apex; flowers white, iu a terminal cyme. High mountains of North Caro- 

 lina. July. Stem 5' -10' high. Acheuia aud receptacle very hairy. 



13. FRAGARIA, Tourn. STRAWBERRY. 



Flowers like Potentilla, but the dry achenia borne on the enlarged, at 

 length pulpy and scarlet receptacle. Style lateral. Perennial herbs with 

 creeping runners. Leaves radical, trifoliolate. Flowers white, in terminal 



cymes. 



1. F. Virginiana, Khrhart. Appressed-hairy ; leaflets thick, oblong, 

 coarsely serrate ; scape few-flowered ; fruit roundish, the achenia embedded in 

 the deeply pitted receptacle. Rich woods. March -April. Scapes 4' -6' 

 high. 



2. F. vesca, L. Softly villous, 3' -6' high; leaflets thin, oblong-oval, 

 pale beneath, 1'long; pedicels recurved in fruit; calyx spreading; achenia 

 fixed to the surface of the receptacle. Tennessee (Gattinger). April. 



3. F. Indica, Andr. (STRAWBERRY GERANIUM.) Creeping; leaves 

 trifoliolate or 3 lobed, the lobes round-obovate, crenate ; peduncles 1-flowered ; 

 calyx leafy-bracted ; petals yellow ; fruit inedible. Waste places, escaped 

 from cultivation. 



14. RUBUS, L. BRIER, BRAMBLE. 



Calyx concave or flattish, 5-parted, without bracts. Petals 5, deciduous. 

 Stamens numerous. Achenia juicy, crowded on the conical or cylindrical 

 receptacle. Style nearly terminal, deciduous. Perennial or shrubby and 

 mostly prickly plants, with lobed or compound petioled leaves, and white or 

 reddish flowers. 



* Heads of 'achcnia hemispherical, deciduous: receptacle dry. 



1. R. odoratus, L. Shrubby, not prickly; the branches, petioles, and 

 corymbs hispid with glandular hairs; leaves large, broadly ovate, 3-lobed, or 

 the lowest ones 5-lobed, the lobes acute or acuminate, toothed and serrate; 

 calyx-lobes caudate; flowers large, rose-color; fruit reddish. Rocky woods 

 on the mountains of Georgia and Carolina. Juue-August. Stem3-4 

 high. Flowers 2' in diameter. 



