” 
252 XLVI. ROSACEA, FRaGaRia. 
few large, incised teeth, smooth above, silvery-canescent beneath, sessile; fis, 
in a cymose corymb ; pet. longer than the obtusish sepals.—A pretty species, on 
dry or rocky hills, Can. and N. States, remarkable for the seit whiteness of 
the lower surface of the leaves. Stems 6—10’ long, at length with slender 
branches. Leaflets 5—9’ by 1—2”, with 2 or 3 slender, spreading-teeth each 
side; upper ones linear, entire. Flowers small. Calyx canescent. Petals yel- 
low. Jn.—Sept. 
*** Leaves pinnate. 
6. P. rruticésa. (P. floribunda. Ph.) Shrubby Cinquefoil. 
St. fruticose, very branching, hirsute, erect; /fts. 5—7, linear-oblong, all 
sessile, margin entire and revolute; pet. large, much longer than the calyx.—A 
low, bushy shrub, in meadows and rocky hills. Northern States and Brit. Am. 
Stems 1—2f high, with a reddish bark; petioles shorter than the leaves. Leaf- 
lets 3—13/ (mostly 1’) by 2—3” wide, acute, crowded, pubescent. Stipules 
nearly as long as the petioles. Flowers }—1}/ diam., yellow, in terminal clus- 
ters. Jn.—Aug. 
7. P. anserina. Silver-weed. Goose-grass. 
St. slender, creeping, prostrate, rooting; Jvs. interruptedly pinnate ; //ts. 
many pairs, oblong, deeply serrate, canescent beneath; ped. solitary, 1-flowered, 
very long.—A fine species on wet shores and meadows, N. Eng. to Arctic Am. 
Stems subterraneous, sending out reddish stolons 1—2f long. Petioles mostly 
radical, 6—10’ long. Leaflets 1—1}’ by 3—6”, sessile, with several minute 
pairs interposed. Peduncles as longas the leaves. F's. yellow, 1’ diam. Jn.—Sept. 
8. P. ancora. Ph. (P. confertiflora. Hitchcock. Boottia sylvestris. Bw.) 
False Avens. White-flowered Potentilla—wSt. erect; radical lws. on long 
petioles, 7—9-foliate, cauline few, 3—7-foliate; lfts. broadly ovate, cut-serrate ; 
jis. in dense, terminal cymes.—Along streams, &c., Can. and N. States, W. to 
the Rocky Mts. Stems 2—3f high, stout, terete, striate, and with nearly the 
whole plant very pubescent. Radical leaves 1f or more long. Leaflets 1—2’ 
.ong, 3 as wide, sessile, odd one petiolulate. Fils. about 8” diam. Petals round-— 
ish, yellowish white, longer than the sepals. Disk glandular, 5-lobed. May, Jn. 
9. P. parapoxa. Nutt. (P. supina. Mz.) 
Decumbent at base, pubescent; dvs. pinnate; Jfts.'7—9, obovate-oblong, 
incised, the upper ones confluent; stip. ovate; ped. solitary, recurved in fruit; 
pet. obovate, about equaling the sepals; ach. 2-lobed, the lower portion chiefly 
composed of starch-like albumen.—River banks, Ohio to Oregon. Nu/tall in 
T.&G. Fi. p. 437. . 
13. COMARUM. 
Gr. konagos, the strawberry tree, which this plant resembles. 
Calyx flat, deeply 5-cleft, with bracteoles alternating with the seg- 
ments; petals 5, very small; stamens numerous, inserted into the 
disk; achenia smooth, crowded upon the enlarged, ovate, spongy, per- 
sistent receptacle.—2% Lvs. pinnate. 
C. patustreE. Marsh Cinquefoil. 
In spagnous swamps, N. States! Wisc. ! to the Arctic Circle. Stems creep- 
ing at base, 1—2f high, nearly smooth, branching. Leaflets 3,5 and 7, crowded, 
14—23’ long, 4 as wide, oblong-lanceolate, hoary beneath, obtuse, sharply ser- 
rate, subsessile; petiole longer than the scarious, woolly, adnate stipules at 
base. Flowers large. Calyx segments several times larger than the petals. 
Petals about 3” long, ovate-lanceolate, and, with the stamens, styles and upper 
surface of the sepals, dark purple. Fruit permanent. Jn. 
14, FRAGARIA. 
Lat. fragrans, fragrant; on account of its perfumed fruit. 
Calyx concave, deeply 5-cleft, with an equal number of alternate, 
exterior segments or bracteoles; petals 5, obcordate; stamens 00; 
achenia smooth, affixed to a large, pulpy, deciduous receptacle—%4 
Stems stoloniferous. Laws. trifoliate. Fs. on a scape, whate. 
