ROSACEA, (rose family.) 123 



1. A. arvensis, L. Annual, hairy; stem (1'- 8' high) leafy; leaves 3- 

 parted, the divisions wedge-shaped, 3 - 5-lobed ; flowers in axillary sessile clus- 

 ters ; fertile stamens 1-2. — Waste places. North Carolina and Virginia. In- 

 troduced. — Stem branching from the base. Leaves 4" - 6" long. 



9. GEUM, L. AvENS. 



Calyx campanulate, deeply 5-cleft, and usually with as many bracts at the 

 sinuses. Petals 5. Stamens and achenia numerous, the latter crov/ded on the 

 conical or cylindrical dry receptacle. Styles terminal, long, persistent, jointed 

 and hairy, or straight and smoothish. Seeds erect. — Perennial herbs, with pin- 

 nately divided leaves. Flowers yellow, white, or purple. 



1. G. album, Gmelin. Smoothish or downy ; stem slender, with spreading 

 branches ; radical leaves pinnate, or the earliest ones nearly simple and rounded ; 

 stem-leaves 3-parted, lobed or toothed ; petals white, as long as the calyx ; style 

 jointed and bent near the middle, the smooth lower portion persistent and hooked ; 

 receptacle and ovaries bristly-hairy. — Rich woods, Georgia and northward. April 

 and May. — Stem 2° high. 



2. G. geniexilatum, Michx. Hairy ; leaves pinnate, 3-parted or 3-lobed, 

 the upper ones nearlj' sessile ; leaflets or lobes thin, ovate and obovate, toothed 

 and serrate; style jointed and bent in the middle, the upper portion plumose 

 and nearly persistent, the lower pubescent, or smooth above ; heads of the hairy 

 achenia sessile. — High mountains of North Carolina. July. — Stem 2° -3° 

 high. Flowers white, veiny. 



3. G. radiatum, Michx. Hirsute; stem short (6'- 12'), often branching; 

 lowest leaves pinnate, the terminal leaflet large, reniform, obscurely lobed, 

 doubly tootiied, the lateral ones few and small ; stem-leaves scattered, small, 

 sharply toothed, sessile ; flowers large ; petals obcordate, yellow ; style straight 

 and wholly persistent, hairy at the base; heads of achenia sessile. — Highest 

 mountains of North Carolina. July. — Flowers 1' wide. 



10. WALDSTEINIA, Willd. 



Calyx obconical, 5-clcft, with as many alternate bracts. Petals .5. Stamens 

 numerous, inserted into the throat of the calyx. Achenia 2-6, dry or some- 

 what fleshy. Style terminal, filiform, separating from the achenium by a joint. 

 Seeds erect. — Low perennial herbs, with chiefly radical and roundish lobed 

 leaves, and yellow flowers on scape-like stems. 



1. "W. fragarioides, Tratt. Smooth or hairy; leaves long-petioled, tri- 

 foliolate or 3-parted, with broadly cuneate and crenately toothed leaflets ; scape 

 as long as the leaves, bracted, many-flowered ; achenia 4-6, minutely haiiy. — 

 Mountain-woods, Georgia and northward. May and June. — Stem and leaves 

 4' - 6' high. Petals larger than the calyx. 



2. "W. lobata, Torr. & Gray. Hairy ; leaves cordate, crenately 3 - 5-lobed ; 

 scape filiform, bracted, 4 - 8-flowered ; achenia mostly 2, hoaiy ; petals rather 



