198 ERYTHEA. 
Perithecia gregarious, hemispherical, 1 to 14 mm. diameter, 
black and shining, coriaceo-carbonaceous, ribbed below, and 
connected by a thin, mouse-colored, loosely interwoven 
subiculum. Ostiolum broad-conical, seated in a shallow 
depression. Asci cylindrical, 110 to 120 x 7 to8 u, pseudo- 
paraphysate, stipitate, 8-spored. Sporidia uniseriate, oblong- . 
fusoid, 2-nucleate, nearly hyaline at first, becoming brown 
and more or less opake, 14 to 16 x 34 to 44 y, with a straight, 
awl-shaped, hyaline appendage at each end, 8 to 10 wu long. 
The ribs around the base extend about half way up and 
are generally quite distinct. 
Anthostomella cornicola, E. & E. 
On dead twigs of Cornus, Seattle, Wash., August, 1892, 
Adella M. Parker, No. 115. 
Scattered, buried. Perithecia globose, } mm. diameter, 
partly sunk in the wood and raising the epidermis into convex 
pustules covered by the black and shining epidermis, which 
is perforated in the center by the papilliform ostiolum. 
Asci cylindrical, paraphysate, 8-spored, p. sp. 150 x 8 y. 
Sporidia uniseriate, narrow-elliptical, 20 to 22 x 7 to 8 y, at 
first with a hyaline coat and a short, hyaline, mucronate 
tip above, at length opake. 
Spherella sidecola, E. & E. 
On living leaves of Sidalcea delphinifolia, Pasadena, Calif., 
March, 1893. 
Perithecia amphigenous, minute, subcircinate, on small 
(1 mm.) dead brownish spots. Asci oblong or obclavate, 
35 to 40 x 8 y, fasciculate, mostly curved. Sporidia biseriate, 
pyriform, greenish-hyaline, 10 to 12 x 4 uw. 
Physalospora agrifolia, E. & E. 
On leaves of Quercus agrifolia, Berkeley, Calif., March, 
1893, Blasdale, No. 107. 
Perithecia epiphyllous, on large wood-colored spots 1 to2 
em. diameter, or often occupying half or more of the leaf, and 
bounded by a narrow, reddish line, sunk in the substance of 
the leaf, but raising the epidermis into pustules and finally 
