A new Species of Waldsteinia from Idaho, 
By Co Vic. Pirgr 
Waldsteinia Idahoensis 
Caudex short, stout, covered with the flattened bases of old 
petioles : leaves orbicular, some of them faintly 5—7-lobed, cordate, 
coarsely and doubly crenate-dentate, glabrous beneath except near 
the sinus where viscidulous, sparsely pilose above and ciliate, 2-5 
cm. broad ; petioles nearly glabrous except at the broadened base 
where pilose-ciliate, two or three times as long as the blades; 
stipules obsolete : scapes one or several, 10-25 cm. high, glabrous 
or nearly so, naked or with one or two lanceolate or auriculate- 
lanceolate ciliate bracts, 5-15 mm. long: inflorescence glandular ; 
cyme open, bearing 2—7 flowers, or rarely but one; bracts lanceo- 
late or ovate, some of them clasping at base, ciliate, 2-6 mm. long ; 
pedicels spreading, somewhat cernuous, 5-20 mm. long: calyx- 
lobes ovate-triangular, acutish, minutely glandular, 5 mm. long: 
petals yellow, orbicular, equalling the calyx-lobes: akenes two 
(always ?), oblong, obtuse, canescent, 2.5 mm. long, 
Collected July 31, 1902, on the Lochsa River at the mouth of 
Lempke’s Creek, Bitterroot Forest Reserve, Idaho. The speci- 
mens are mostly past maturity, only one flower being found, and 
but two-specimens from which the akenes had not fallen. The 
plant is evidently very local as it was seen at no other place, though 
quite abundant over a few acres where*found. Mr. J. B. Leiberg, 
who has botanized quite extensively in the Bitterroot Forest 
Reserve, writes us that he has never met with this plant. 
This species is quite closely related to the extreme South- 
Alleghanian Waldsteinia lobataT.& G. It differs, according to 
Mr. Greenman, who has kindly compared the two species, in its 
glandular inflorescence and in being less pubescent on the under 
side of the leaves and on the petioles. 
The curious distribution of this third American species as com- 
pared with its nearest relatives deserves comment, especially as a 
number of other plants show somewhat similar relations. Among 
them the following come to mind: 
Pachistima myrsinites Raf. is common in the mountains at low 
elevations from British Columbia to New Mexico. The only 
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