4S0 Rydberg : Studies ox the Rocky Mountain flora 



Professor Nelson both in the original diagnosis* and in Coulter 

 & Nelson's New Manualf described Lappula erecta as having the 

 marginal prickles in a single row, but a duplicate of the type in 

 the Columbia University herbarium and all specimens distributed 

 as Lappula erecta by Professor Nelson himself in the herbarium of 

 the New York Botanical Garden have a double row of marginal 

 prickles, the prickles of the outer row being somewhat smaller 

 than those of the inner. 



Oreocarya pustulosa Rydb. sp. nov. 



Perennial, branched at the base; stems 3-5 dm. high, glabrous 

 or nearly so throughout, lower leaves linear-oblanceolate, the 

 upper linear or linear-lanceolate, 3-10 cm. long, green, glabrous 

 beneath, sparingly hairy above; the hairs short and at least in age 

 with conspicuous pustulate bases; flowers paniculate; branches 

 racemose, not secund; pedicels 1-2 mm. long; sepals triangular- 

 lanceolate, acute; corolla white; tube not exceeding the calyx; 

 limb 5-6 mm. broad; lobes orbicular; fruit depressed-globose; 

 nutlets smooth, nearly white, mottled with light brown, more or 

 less separated from each other on the margins, often not all 

 maturing. 



This is related to Oreocarya multicaulis (Torr.) Greene, 0. 

 suffruticosa (Torr.) Greene and the Mexican 0. Palmed Greene. 

 It differs from the first two in the glabrous stem, green leaves, and 

 light nutlets, and from 0. Palmeri in broader leaves and different 

 habit. It grows in canyons at an altitude of 1,700-2,000 m. 



Utah: Hammond Canyon, Elk Mountains, July 31, 191 1, 

 Rydberg & Garrett 9320 (type, in herb. N. Y. Bot. Gard.); also 

 same locality, Aug. 9, 191 1, 9569; Dry Wash, southwest of Abajo 

 Mountains, August 10, 9590. 



Oreocarya Macounii Eastw. sp. nov. 



Biennial or perennial with a slender tap-root; stem slender, 

 1-2 dm. high, sparingly hirsute; leaves narrowly linear or narrowly 

 linear-oblanceolate, sparingly hirsute; inflorescence racemiform 

 with short branches; corolla white, 5 mm. long, 4 mm. wide; 

 nutlets ovate, obtuse, 2 mm. long, acutely margined, rounded 

 on the back and coarsely muricate. 



Saskatchewan: Moose Mountain Creek, July 6, 1880, John 



* Bull. Torrey Club 27: 268. 1900. 

 t 412. 1909. 



