366 NORTH AMERICAN FLORA | VoLuME 22 
oblong, acute, shorter than the ovate-lanceolate acute sepals; petals white, obovate or 
elliptic, about a half longer than the sepals or more. 
TYPE LOCALITY: Newfoundland. 
DisTRIBUTION: Greenland to New Jersey, mountains of Georgia, Minnesota, and Manitoba ; 
also in Great Britain. 
ILLUSTRATIONS: Engl. Bot. pl. 2389; Fl. Dan. ~/. 799(?), pl. 1875; Ait. Hort. Kew. 2: fl. 
9; Britt. & Brown, Ill. Fl. /. 933; Mem. Dep. Bot. Columbia Univ. 2: pl. 100, f. 6-10. 
27. DASIPHORA Raf. Aut. Bot. 167. 1838. 
Potentilla § Comocarpa T. & G. Fl. N. Am. 1: 445. 1840. 
Shrubs with scarious sheathing stipules, pinnate leathery leaves, and axillary flowers. 
Hypanthium saucer-shaped. Bractlets, sepals, and petals 5. Petals in ours yellow, nearly 
orbicular, neither unguiculate nor emarginate. Stamens about 25, in 5 festoons on a pen- 
tagonal disk surrounding the receptacular column ; filaments filiform ; anthers oblong, flat, 
not didymous, dehiscent by a longitudinal slit along the margin. eceptcle hemispheric, 
with numerous pistils; styles club-shaped, thick and glandular upward, inserted near or 
below the middle of the ovaries; stigmas large and evidently four-lobed; achenes densely 
covered with long straight hairs. Seeds ascending and amphitropous. 
Type species, Dasiphora riparia Raf., which is the same as Pofentilla fruticosa 1. 
1. Dasiphora fruticosa (1,.) Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 188. 1898. 
Potentilla fruticosa ¥,. Sp. Pl. 495. 1753. 
Fragaria fruticosa Crantz, Inst. 2: 176. 1766. 
Dasiphora riparia Raf. Aut. Bot. 167, 1838. 
Potentilla floribunda Pursh, Fl. Am. Sept. 355. 1814. 
Potentilla tenuifolia Willd.; Schlecht. Ges. Nat. Freunde Berlin Mag. 7: 284. 1815. 
Potentilla fruticosa tenuifolia Lehm. Monog. Potent. 32. 1820. 
Potentilla Louretronis Tratt. Ros. Monog. 4:4. 1824. 
Potentilla fruticosa tenuiloba Seringe, in DC. Prodr. 2: 579. 1825. 
Dasiphora floribunda Raf. Aut. Bot. 167. 1838. 
Dasiphora fruticosa tenuifolia Rydb. Mem. Dep. Bot. Columbia Univ. 2: 190. 1898. 
Potentilla fruticosa parvifolia 8. Wats. Proc. Am. Acad. 8: 561. 1873. Not P. parvifolia Fisch. 1831. 
Potentilia fruticosa alpina S. Wats.; Wats. & Rothr. Cat. Pl. Wheeler’s Surv. 8. 1874. 
Dasiphora fruticosa monticola Rydb. Mem. Dep. Bot. Columbia Univ. 2: 190, 1898. 
Shrub, 3-15 dm. high; branches when young silky-hairy, in age with brownish shreddy 
bark; stipules ovate to ovate-lanceolate, acuminate, scarious and veiny; leaves pinnate, 
with 3-7, usually 5, approximate leaflets, silky above, silky and whitish beneath; leaflets 
in the typical form oblong, 1-2 cm. long, in the variety zexuifolia linear-oblong, or 
in var. monticola linear and only 5 mm. long, generally acute and with more or less 
revolute margins; flowers in small loose cymes or solitary, large, 1.5-3 cm. in diameter, 
or in var. monticola only 1 cm. wide; hypanthium silky-villous, in fruit about 1 cm. in 
diameter; bractlets linear-oblong, generally slightly exceeding the broadly ovate acuminate 
sepals; petals yellow, orbicular, often twice as long as the sepals. 
TYPE LOCALITY: England. 
DISTRIBUTION : From Labrador to Alaska, California, New Mexico, and New Jersey; also in 
Siberia and western Europe. 
ILLUSTRATIONS: Sv. Bot. fl. 253; Engl. Bot. p/. 88; Wats. Dendr. 1: 47. 70; Regel, Garten- 
flora9: pi. 278, f. 3; Britt. & Brown, in. FI Sf. 1932 ; Mem. Dep. Bot. Columbia Univ. 2: pl. 101, f- 
i-6and f. 7 (var. monticola) ; Amman, Stirp. Ruth, pl. I8, f. 1 (var. tenutfolia). 
28. DRYMOCALLIS Fourr. Ann. Soc. Linn. Lyon 
II. 16: 371. 1868. 
Argentina Lam. Fl. Fr. 3: 118, in part. 1778, 
Bootia Bigel. F1. Bost. ed. 2. 206. 1824. Not Boofia Adans. 1763, nor Bootia Neck. 1768. 
Potentilla § Closterostyles T. & G. Fl. N. Am. 1: 445. 1840. 
Perennial herbs, with scaly rootstocks, glandular foliage, pinnate leaves, and cymose 
inflorescence. Hypanthium saucer-shaped or hemispheric. Bractlets, sepals, and petals 5, 
Petals obovate, elliptic, or nearly orbicular, neither unguiculate nor emarginate, yellow or 
white. Stamens 20-30, in 5 festoons on the much thickened margin of a pentagonal disk 
around the receptacle; filaments filiform ; anthers oblong, truncate at each endor cordate at 
