CLINTON: NORTH AMERICAN USTILAGINEAE. 
477 
a- compact mass of parenchymatous tissue ; spores in one or more 
layers, tightly compacted — D. occulta, D. occulta var. Farlowii, 
I). Martianoffiana, D. intermedia , I), deformans. 
P setjdodoassansia i Central portion of the spore balls composed 
of an irregular mass of fine, densely interwoven hyphae ; spores in 
several laj^ers, loosely compacted — D. obscura. 
* Eudoassansia. 
Doassansia Epilobii Fail. 
Doassansia Epilobii Farl., Bot. Gaz., 8 : 277. 1883. 
Exsiccati : Doassansia Epilobii Farl., on Epilobium montanum , Ell., N. 
A. Fungi, 1486. 
Sori in leaves, thin,forming at first yellowish but later dark brown 
spots in which the aggregated spore balls show as minute darker 
colored elevations; spore balls situated in the spongy parenchyma¬ 
tous tissue, usually clustered, consisting of a rather indefinite cortex 
and a spore mass entirely filling the interior, ellipsoidal to irregu¬ 
larly spherical, 120-220 p in length ; cortical cells dark brown, 
irregularly polyhedral or flattened radially, with thick walls, small, 
8-10 p in length; spores light brownish, broadly ellipsoidal to 
irregularly polyhedral or subspherical, with smooth moderately 
thick walls, chiefly 8-12 p in length. 
Host: Epilobium alpirmm , N. H. (type). 
This species has been reported only from the White Mountains 
by its discoverer, Professor Farlow. The external layer of sterile 
cells is not very prominent but is apparently a true cortex. The 
germination of the spores is not known. Literature : 54, 160, 161. 
Doassansia ranunculina Davis. 
Doassansia rununculina Davis, Bot. Gaz., 19 : 416. 1894. 
Exsiccati: Doassansia ranunculina Davis n. sp., ou Ranunculus inulti- 
fidus, Ell. & Ev., N. A. Fungi, 3238, Ell. & Ev., Fungi Col., 1531. 
Sori in leaves, thin, forming light brown spots 2-4 mm. in diam¬ 
eter, with the spore balls showing as numerous minute clustered 
papillae ; spore balls developed in both palisade layer and spongy 
