gon RypDBERG: Rocky MouNTAIN FLORA 
mistakably the plant here considered. Being the only available 
and certain specific name of the plant, sphacelatum is therefore 
taken up. 
’ Othake macrolepis sp. nov. 
Annual; stem 3-4 dm. high, strigose-puberulent, and glandular 
on the upper parts, with ascending branches; leaves alternate, 
linear, indistinctly 1-ribbed, strigose-puberulent on both sides, 
3-5 cm. long, 2-3 mm. wide, short-petioled; involucres obconic, 
g-10 mm. high and about as wide; bracts 8-12, in two subequal 
series, linear-oblanceolate, abruptly acute, scabrous-hispidulous and 
slightly glandular, green, with scarious tips, and the inner with 
narrow scarious margins; rays none; disk-corollas rose-purple, 14- 
15 mm. long; limb 4-5 mm. long, with linear lobes; achenes linear- 
obpyramidal, 7 mm. long, 1 mm. thick at the apex, strigose-canes- 
cent, pappus-scales 6-8, lanceolate, caudate-acuminate 5-6 mm. 
long. 
This species is most closely related to O. roseum Bush, but has 
much larger heads, flowers, and fruit, and the leaves have a less 
distinct midrib. In the type of O. roseum the disk-corollas are 
only about 12 mm. long. There is no full-grown fruit in the type 
sheet, but other specimens show that the achenes are only 4-5 mm. 
long and their pappus-scales 2-3 mm. long, acute rather than 
caudate. 
CoLtorabo: Rule Creek, Bent Co., Aug. 17, 1909, G. E. Oster- 
hout 4097 (type, in herb. N. Y. Bot. Gard.). 
PICRADENIOPSIS 
In the New Manual, my genus Platyschkuhria is accepted, but 
Picradeniopsis Rydb., fully as distinct from Bahia, is retained in 
the latter genus. In Picradeniopsis and Achyropappus the foliage 
is impressed-punctate, and the leaves opposite, which is not the 
case in the other genera included by Gray in Bahia. Bahia isa 
shrubby plant of South America with white rays. Using Professor 
Nelson's generic key, Picradeniopsis would key into Hymenoxys. 
It stands nearest to that genus, which has been known under the 
name Picradenia, but differs in the free bracts. Picradeniopsis 
is amply distinct from the non-punctate and alternate-leaved 
Bahia but may have been included in Achyropappus. The annual 
habit and rayless heads of that genus seem to be distinction enough. 
