ROSE TRIBES 



387 



533. Fragaiia vesca. 



stem-leaves few, simple, lobed, or 3-divided or toothed and short-petioled: 

 flowers whitish, the petals not longer than sepals: head of fruits sessile in 

 the calyx: styles jointed and bent near middle, the lower part hooked: torus 

 bristly. Late spring and summer. 



G. virginianum, Linn. Differs from preceding in being hirsute: root- 

 leaves various, but pinnate, with a very large 

 rounded terminal leaflet; the upper leaves mostly 

 3-parted: flowers white or pale yellow: receptacle ^^^M 

 not bristly; heads of fruits on short, stout, hairy 

 stalks. Low ground. Summer. 



3. AGRIMONIA. AGRIMONY. 



Perennial, erect herbs, with alternate odd-pin- 

 nately compound leaves, and slender, spike-like 

 racemes, with yellow flowers: leaves with small seg- 

 ments interposed, and large dentate stipules: calyx- 

 tube contracted at the throat with a 5-cleft limb, and bristly on upper 

 part; petals 5; stamens slender, 5-15, carpels 2, styles terminal: fruit dry, 

 included in the prickly calyx-tube. 



A. gryposepala, Wallr. Spicate raceme terminating the stem (6 in. to 2 ft. 

 high) , petals yellow and twice longer than the calyx. Dryish soils. Summer. 



4. FRAGARIA. STRAWBERRY. 



Low perennials with 3 broad-toothed leaflets and a few flowers on radical 

 peduncles: torus enlarging in fruit, usually becoming fleshy. 



F. vesca, Linn. Fig. 533. Small, very sparsely hairy, the leaves thin 



and rather light green, very sharply toothed: flower-clusters overtopping 



the foliage, small and erect, forking: fruit slender and pointed, light colored 



(sometimes white), the achenes not sunk in the flesh. Cool woods; common 



North. 



F. virginiana, Duch. Common field strawberry. 

 Fig. 534. Stronger, darker green, loose-hairy, the 

 leaves with more sunken veins and larger and firmer : 

 flower-cluster slender but not overtopping the leaves, 

 in fruit with drooping pedicels: fruit globular or 

 broad-conical, with achenes sunk in the flesh, light 

 colored. Very common. 



F. chiloensis, Duch. Garden strawberry. Fig. 

 291. Low and spreading but stout, the thick leaves 

 somewhat glossy above and bluish white beneath, 

 rather blunt-toothed: flower-clusters short, forking, 

 the pedicels strong and long: fruit large and firm, dark colored, with 

 sunken achenes. Chile. 



534. Fragaria virginiana. 



5. PRtTNUS. PEACH. PLUM. CHERRY. 



Trees and shrubs, mostly flowering in early spring: sepals, petals and 

 stamens borne on the rim of a saucer-shaped torus, the calyx with 5 green 



