- 
CENT. XIII. 167 
hemia by 'Tratenick under this name, 1 have 
seen no description; near last, differing by fo- 
lioles narrower pectinate serrate, with adpress- 
ed canescent hairs, almost silky on the flowers, 
petals longer than calix and of a dirty yellow. t 
1226, Pot. bifurca L. O.—Sibiria, very rare 
sp. of subg. Aplenta, petals almost cuneate. 
DASIPHORA Raf. differs from Potentilla 
by receptacles villose or wooly, involving the 
seeds in dense wool, and the seeds themselves 
such instead of rugose. This striking character 
deserves to be Generic here as in other Genera. 
All the sp. were Potentilla of L. and Authors, 
and many others belong here besides the follow- 
ing, also the whole 3d section of W. Pers. &c. 
1227, Dasiphora riparia Raf. Pot. frutico- 
sa L.—Boreal Europe, Sibiria, leaves pinnate, 
3-5folioles lanceol. or cuneate, petals shorter, 
seeds wooly. This and the 2 next are fruticose, 
forming a subgenus Thamnila Raf. by calix 
with 5 segments linear elongate, and 5 ovate 
shorter. 
1228, Das. floribunda Raf. Pot, do Pursh 
&c, fruticosa of many bot.—Boreal America, 
Origon &c, very distinct by leaves narrow, lin- 
ear or oblong. petals equal to calix, seeds vil- 
lose. 
1229, Das. speciosa Raf. P. do O—Creta, 
fine rare sp. suffruticose, fl. congested, petals 
white equal to calix, the 3 ovate segments 
broad large, the narrow segments not longer. 
1230, Das. valderia Raf. P. do Allioni L.— 
Alps of Italy, very rare, habit of D. speciosa, 
calix as in D. riparia. 
1231, Das. nitida R. (Wulfen Pot.) Alps of 
Tyrol, Carinthia, small uncial, with large fl. ca- 
