30 BOTANICAL GAZETTE Ijuly 



It has the aspect of some of the species of the deserts of the southwestern 

 United States, but I am unable to find a close ally. 



Collected by Messrs. E. D. Merrill and E, N. Wilcox, dry soil, seven 



miles west of St. Anthony, Idaho, July 8, 1891 ; no. 873. 



Cryptanthe Howellii, n. n. — C, multicanlis Howell, Fl. N. W. 

 Am. 487; not C. multicanlis Aven Nelson, Bot. Gaz. 30: 194- 

 This species may appropriately be named for its discoverer and 

 describer, the indefatigable student of our northwestern plants, 



Mr. Thomas Howell. 



Oreocarya cana, n. sp. — The multicipital caudex tufted, its 

 branches clothed at their summits with the densely pubescent 

 leaf bases : stems single from the crowns, 1-2*^°^ high, simple, 

 softly and closely pubescent: leaves silvery white with a short, 

 close, soft pubescence ; the numerous crown leaves linear- 

 oblanceolate, ^-J""^ lo^g» scarcely petioled ; stem leaves shorter, 

 sessile above : inflorescence a short dense thyrsoid spike, its 

 pubescence moderately dense and slightly fulvous (scarcely 

 hispid): sepals linear, 5-7""" long: corolla white, its tube as long 

 as the calyx ; nutlets narrowly ovate, angled at the sides, densely 

 muriculate on the back and sides, ridofed on the back by a 



mm 



double row of minute tubercles, scar open lanceolate, about 3 

 long, rarely all maturing. 



F 



This plant was first collected in 1894, and now again from near the same 

 locality in excellent flower and fruit. In habit it is intermediate between 

 O. siiffriiticosa Greene and O, caespitosa Aven Nelson, but perhaps more 

 nearly allied to the latter, from which it is at once separated by its silvery 

 white foliage, its larger size, and muricate nutlets. No. 830Q, collected on 

 gravelly, open hilltops, Fort Laramie, Wyoming, is the type. 



Mimulus membranaceus, n. sp. — A weak diffusely spreading 

 annual, nearly glabrous throughout, but slightly clammy in the 

 fresh state : stems slender, nearly prostrate, geniculate at the 

 nodes, from a few centimeters to i or 2*^™ long: leaves very thin, 

 elliptic to broadly ovate, entire or crenate-dentate, on pedicels 

 about equaling the blade : flowers in the axils, on filiform 

 pedicels which are several times longer than the calyx: calyx 

 tubular, obscurely glandular-pubescent, 2-3"^'^ 'ong, the teeth 

 small, much elongated, somewhat inflated and distinctly angled 



