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. 
f 
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 crowded 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. genieulatum, Michx. Hairy; leaves pinnate, 3-parted or 3-lobed, 
the upper ones nearly 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 929-39 
high. Flowers white, veiny. 
3. G. radiatum, Michx. Hirsute; stem short (6' — 19!), often branching; 
lowest leaves pinnate, the terminal leaflet large, reniform, obscurely lobed, 
doubly toothed, the lateral ones few and small; stem-leaves scattered, small, 
sharply toothed, sessile; flowers 1 ; 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, Willi. 
Calyx obconical, 5-cleft, 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. 
$ erect.— Low perennial herbs, with chiefly radical and roundish lobed . 
leaves, and yellow flowers on scape-like stems. ; 
d W. fragarioides, Tratt. Smooth or hairy ; leaves long-petioled, tri- 
foliolate or 3-parted, with broadly cuneate and crenately toothed leaflets ; scape _ 
__ 88 long as the leaves, bracted, many-flowered ; achenia 4—6, minutely hairy. — 
Mo untain-woods, Georgia and northward. May and June.— Stem and lea 
