Vor. I1.] ROSE FAMILY. 
3. Fragaria vésca L. European Wood 
Strawberry. (Fig. rg1o.) 
Fragaria vesca I,. Sp. Pl. 494. 1753. \\ 
Stout, tufted, dark-green, generally less vil- 
lous than the two preceding species, Leaflets 
ovate or broadly oval, obtuse, dentate, broader 
but nearly or quite as thick, the terminal one 
cuneate, the others inequilateral at the base; 
scape commonly exceeding the leaves, so that 
the fruit is borne above them, sometimes 12’ 
high, its hairs mostly spreading; calyx-lobes re 
maining spreading or sometimes reflexed; fruit 
red, hemispheric or conic, the achenes borne 
on its smooth and nearly even surface. 
In fields and along roadsides. Naturalized from 
Europe in the Eastern and Middle States. April- 
June. 
4. Fragaria Americana (Porter) Britton. American Wood Strawberry. 
(Fig. 1911.) 
Fragaria vesca var. Americana Porter, Bull. 
Torr. Club, 17:15. 1890. 
Fragaria Americana Britton, Bull.Torr. Club, 
19: 222, 1892. 
Slender, light green, loosely villous. pubes- 
cent or glabrate, producing runners more 
freely than any of the three preceding spe- 
cies. Leaflets thin, ovate or oval, obtuse or 
acute at the apex, sharply incised-dentate, 
the terminal one commonly cuneate, the 
others inequilateral at the base, pubescent 
with silvery appressed hairs beneath; flow- 
ers smaller than in /. vesca; calyx-lobes 
spreading or reflexed in fruit; fruit ovoid or 
elongated-conic, light red or pink, the 
achenes borne on its glabrous shining even 
surface and but slightly attached to it. 
In rocky woods, Pennsylvania and New Jer- 
sey to Ontario and New Brunswick, west to 
Oregon, May-June, 
8. DUCHESNEA J. E. Smith, ‘Trans. Linn. Soc: 10: 372. 181. 
Perennial herbs, with trailing branches often rooting at the nodes (leafy runners), 3- 
foliolate long-petioled leaves and axillary slender-peduncled yellow perfect flowers. Calyx 
5-parted, 5-bracteolate, the bractlets larger than the calyx-segments and alternating with 
them, dentate or incised, often regarded like those in /ragaria and Potentil/a as an exterior 
calyx. Petals 5, obovate. Stamens numerous. Pistils numerous, borne on a hemispheric 
receptacle which greatly enlarges but does not become pulpy in fruit. Achenes superficial 
on the receptacle. [In honor of A. N. Duchesne, French botanist. ] 
Two species, natives of southern Asia. 
