103 



AN UNDESCRIBED BLACK-CAP RASPBERRY. 

 By C. V. Piper. 



Rubus Hesperius. Habit of R. leucodermis, 1 to 2 meters 

 high; young stems glaucous, older ones brownish and shining, 

 densely beset with strong prickles, which are straight on the larger 

 branches but more or less recurved on the smaller ones; leaves 

 trifoliate, or on young, vigorous shoots pedately 5-foliate; leaflets 

 5 to 8 cm. long, ovate, acuminate, thickish, coarsely and doubly 

 serrate, perfectly green juid glabrous on both sides, not shiny, armed 

 on the midrib beneath, and even on the lateral veins with recurved 

 or straight prickles ; lateral leaflets on very short (1 to 2 ram. long) 

 petioles; terminal leaflet sometimes 3-lobed; petiole stout, usually 

 glaucous, 2 to 5 cm. long, armed with stout recurved prickles; stip- 

 ules setaceous, about 8 mm. long; flowers in terminal corymbs, or a 

 few in the axils of the upper leaves; these solitary or in clusters of 

 two or three; peduncles or pedicels stout and more densely armed 

 than the branchlets; sepals in fruit green, glabrous, deltoid- 

 lanceolate, long-acuminate, 12 mm. long; petals and stamens not 

 seen; fruit nearly black, without bloom, dry and rather tasteless; 

 young carpels neither glaucous nor tomentose ; seeds large. 



Closely related to R. leucodermis Dougl. and R. occidentalis Linn, 

 from both of which it is readily distinguished by the entire absence 

 of pubescence on the under side of the leaves. It is also much more 

 strongly and densely armed than either. 



The plant occurs sparingly in the Snake River canon at Wawawai 

 and Almota, Whitman County, Washington. It grows usually 

 along stream banks but occasionally in crevices of moist cliffs. 



Agricultural College, Ptdlman, Wash. 



NEW WEST AMERICAN LILIES. 



By Carl Purdy. 



Lilium occidentalis. Eureka Lily. Following Baker's 



synopsis of lilies this species falls in sub-genus V, Martagon. 



Bulb shortly rhizomatous as in L. 'pardalinum but not dichoto- 



mously branching as in that species, nor forming clumps; scales 



Erythea, Vol. V, No. U [29 October, 1897]. 



