Entyloma arnicale Ellis & Everh. 1895

Entyloma arnicale Ellis & Kv. (N. Am. Fungi 3136; hyponym. 1894)
Bull. Torrey Club 22 : 57. 1895.
RamtilaHa arnicalis Ellis & Ev. Proc. Acad. Nat. Sci. Phila. 1891 : 85. 1891.
Sori in leaves, forming reddish-brown subcircular or angular areas, prominent on upper surface, 3-8 mm. in diameter, distinct or often killing intervening tissue and thus forming an extended dead area ; spores yellowish to chestnut-brown, rather uniform, chiefly subspherical or spherical, often with evidence of gelatinous envelope which in some cases forms conspicuous papillae on the rather thick spore-wall, chiefly 13-17 /z in diameter; 'Conidia forming a slight hypophyllous growth "in center of area, chiefly linear-lanceolate, often slightly curved at upper end, about 18-28^ X 3^.
On Carduaceae :
Arnica Cham-issonis^ Washington. Arnica cordifolia, Idaho. Arnica latifolia, Washington.
Type locality: Mountains of Skamania County, Washington, on Arnica Chamissonis.
Distribution : Idaho and Washington.