Vol. XXIX, pp. 99-102 June 6, 1916 



PROCEEDINGS 



OP THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW PLANTS FROM OREGON. 

 BY C. V. PIPER. 



A set of unusually interesting plants collected in the Umpqua 

 Valley, Oregon, by the veteran collector, Mr. W. C. Cusick, 

 contains several species heretofore undescribed. This valley is 

 botanically noteworthy because it is the northernmost station 

 of many California plants, but it also contains a considerable 

 number of species with very circumscribed ranges. 



Besides these Umpqua Valley plants there is described in this 

 paper a new Solidago from the Wallowa Mountains and a new 

 Eucephalus from Mount Jefferson. A new name also is pro- 

 posed for a Washington species of Aster. The type specimens 

 are in the possession of the author. 



Asarum marmoratum n. sp. 



Rootstocks slender, elongate, about 3 mm. in diameter; leaves cordate- 

 reniform, longer than broad, acutish, ciliate, glabrous on both surfaces 

 except along the principal veins, marmorate with white along the veins 

 above, 8-12 cm. long: petiole slender, sparsely villous, mostly longer 

 than its blade : calyx dull purple, campanulate, pubescent with scattered 

 weak hairs, the lobes attenuate-filiform, 6 cm. long. 



Umpqua watershed, W. C. Cusick No. 4587, April 28, 1915 (type) ; also 

 collected near Wimer, E. W. Hammond No. 348, May 26, 1892: and at 

 Anderson camp, alt. 1800 meters, J. B. Leiberg No. 4278, July 8, 1899. 



This species is exceedingly close to Asarum caudatum Lindl., but differs 

 at once in its white-mottled leaf-blades, which become longer than broad. 

 Asarum caudaHcm is a very uniform species over its wide range, the 

 green-leaf blades being never longer than broad. 



Sidalcea cusickii n. sp. 



Stellate puberulent throughout and without any long hairs ; stems stout, 

 90-120 cm. high, scabrous puberulent; basal leaves orbicular, about 10 



23— Phoc. Biol. Soc. Wash., Vol. XXIX, 1916. (99) 



