224 
with the Dothichloe Hypoxylon (Pk.), as above described. Sac- 
cardo’s genus Of/uodothis is characterized as possessing continuous 
spores. This together with the different character of the stroma 
of such species as 0. Haydeni (B. & C.) distinguishes it from 
Dothichtoe. 
DoruicHia: ARISTIDEZ n. sp. Stroma dimorphic, sterile 
portion confluent, forming a thin black layer, in the specimens 
seen entirely surrounding the culm. Fertile portion much thicker, ‘ 
confluent or interrupted, forming small perpendicular elevations 
on the sterile portion, projecting apices of the crowded perithecia — 
more or less confluent in an irregular manner giving a rugulose OF 
convolute appearance to the stroma. Otherwise as in D. Hypom- 
lon. On Aristida purpurascens, Auburn, Ala. Collected by B. M. 
Duggar. : 
The simple agreement in character of the asci and spores ot 
these species cannot be taken as of specific identity where there 
are other characters sufficiently distinct, for there is no apprecl®” 
ble difference between the asci and spores of Lpichloé typhina and 
those of Dothichoé Hypoxylon, and in several species of Cordyceps 
they are very similar. e 
Epichlo’ strangulans (Mont.) Sacc., which according t0 
cardo is dothideaceous in color, may belong to this genus, 
have not seen the plant. a 
There may be some question as to the proper location of the: 
genus Dothichloé, whether it should remain in the Hypocreace® ee 
be transferred to the Dothideacee. 
Sac- 
but I 
‘ ECHINODOTHIS Atkinson. 
Stroma subcarnose, of corky consistence, pulvinate, light post 
ored, tuberculate and constricted at base, or disciform, OT irregut a 
partly or sometimes entirely surrounding the host, or subst 
composed of several layers, or strata, of different consistence 
_Perithecia subcylindrical, sessile, giving an echinate appearane 
the stroma. Asci cylindrical, 8-spored. Spores linear, 
at length separating at the septa into short segments. 
ECHINODOTHIS TUBERIFORMIS (B. & Rav.). . 
Hypocrea tuberiformis B. & Rav. Grev. 4: 13- a 
Hypocrella tuberiformis Atkinson, Bot. Gaz. 16: 282 (1891)- : 
Stroma. subglobose, simple’ or lobed, irregular, usually se4 
upon one side of the culm but occasionally entirely SutTot 
it, fastened to the substratum by whitish radiating threads ee 
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