223 
The characters of these two new genera may be given as fol- 
lows: 
4 
DOTHICHLOE Atkinson. 
_ Stroma dothidiaceous, black, hard, especially the outer por- f 
tions, lighter within, but the dark color is present to a considerable 
depth, of like structure throughout though varying in color, pul- 
vinate, effused, disciform or armilla-form, partly or entirely sur- 
rounding the host or substratum, continuous orinterrupted. Peri- 
thecia, or ascigerous cells, crowded, confluent with the stroma, im- 
mersed, the apex projecting above and giving ita granulose, rugose, 
orconvolute appearance. Asci cylindrical, 8-spored. Spores fili- 
form, septate, eventually separating at the septa into short segments. 
Dotuicutoz Hypoxyion (Pk.). 
Epichloé Hypoxylon Pk. 27th Rep. N. Y. State Mus., 108. 
Hypocrella Flypoxylon Sacc. Syll. 11: 581. 
Stroma 5-20 mm. long, usually occupying one side of the leaf 
and may be either epiphyllous or hypophyllous, sometimes en- 
urely surrounding the host. Perithecia 100-1 50 “. in diameter and 
nearly twice as long, the conical apices projecting slightly above 
the stroma give ita granulose appearance. Asci 150-200 X 4-5 #. 
linear, tapering to a slender point at the base and crowned by a 
yaline truncate apex. Spores nearly the same length as the asci, 
ut I “ in diameter, curved and interwoven in the ascus. 
This species is very common in the United States upon 
grasses. HHypocrea atramentosa B. & C. Journ. Linn. Soc. 10: 377, 
'S probably also a synonym of this species. What I have taken 
to be this plant I found very abundant on the under side of the 
leaves of Andropogon Virginicus in Alabama. It agrees well with 
authentic specimens of Peck’s species. Ellis also includes in the 
Synonymy of this species Dothidca vorax, atramentaria and pilule- 
Sormis B.& C.D. atramentaria B. & C. in Ellis’ N. A. F., No. 
683, from South Carolina is certainly the same. The others I 
have not seen. 
Saccardo places Dothidea vorax, piluleformis and atramentaria 
-&C. in the genus Ophiodothis of the Dothideacee as D. vorax 
-& C.), Sace. var. piluleformis and var. atramentaria, the latter 
Variety referring to No. 100, Rav. F. Amer. The specimen which _ 
have seen of this number of Rav. F. Amer. is mostly immature, 
but sufficiently developed to identify it as the same species as D. ae 
Hamentaria B, & C. in Ellis N. A. F. No. 683, and also identical — 
B 
