124 KOSACK.«. (rosk family.) 



shorter tlian thctalyx. (Dalibarda lobata, Baldw.) — Banks of tlie Flint and 

 Chattalioochcc rivers, in the middle districts of Georgia, not common. May 

 and June. — Scape and leaves 4' -8' high. 



11. POTENTILLA, L. Cinquefoil. 



Calyx flat, 5-clcft, with as many bracts. Petals .5, obcordato or roundish. 

 Stamens numerous. Style lateral or terminal, deciduous. Achcnia collected 

 in a head on the dry and pubescent receptacle. — Herbs or shrubby plants, with 

 variously divided leaves. Flowers solitary or cymosc. 



* Style terminal, or nearlij so. 



1. p. Norvegica, L. Annual, hairy; stem erect, branched; leaves pal- 

 mately .3-fuliolatc, the leaflets obovate-oblong or lanceolate, coar.-ely serrate ; 

 flowers pale yellow, in leafy cymes ; petals shorter than the caly.x. — Waste 

 places. Introduced, and sparingly naturalized. — Stem 1° - 2° higli. 



2. P. Canadensis, L. Perennial, hairy ; stem prostrate or ascending, 

 simple; leaves jjalmately 5-foliolatc; leaflets obovate-oblong, coarsely serrate; 

 flowers axillary, solitary, on long filiform peduncles ; petals yellow, obcordatc, 

 as long iis the calyx. (P. simplex, il//(7(x.) — Meadows in the uijper districts, 

 Mississippi to Korth Carolina, and northward. July and August. — Stem 

 l°-3° long. 



* * Sti/Ie lateral. 



3. P. tridcntata, Ait. Stem somewhat shnibby at the base, erect or as- 

 cending, pui)csccnt ; leaves rigid, trifoliolate, cuncateoblong, 3-toothcd at the 

 apex ; flowers white, in a terminal cyme. — High mountains of Korth Carolina. 

 July. — Stem 5' - 10' high. Achenia and receptacle very hairy. 



12. FRAGAEIA, Toum. SxRAwnEnuY. 



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 teiminal cymes. 



1. F. Virginiana, Ehrhart. Hairy; leaflets oblong, eoar.«ely serrate ; 

 scape fcw-flowcrcd ; fruit roundish, the achenia ini1)cddc'd in the deeply piltcd 

 receptacle. — llich woods, Florida to Mississippi, and northward. March and 

 April. — Scapes 4' - 6' high. 



13. RUBUS, L. Brier. BnAMni-E. 



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

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

 ceptacle. Style nearly terminal, deciduous " — Perennial or shrubby and mostly 

 prickly plants, with lobed or compotm<l petioled lcav.es, and wliitc or rcdilish 

 flowers. 



* ff'diN of iirlit'iiid hniiisiilirriml, (Irrii/iiniix ; ririplnrlr (In/. 



1. R. odoratUS, L. Shnibl>y, not prickly; the lirMnclies, pcfif)lcs, and 

 corymbs his[)id with glaii<iular hairs ; leaves large, broadly ovate, 3 lyU-d, or 



