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3 
Hypocopra 97 
Spores 17 rounded at both ends, 24-26 مر‎ x 40-50 y, 
ranging from hyaline when young through yellow to dark brown 
„and opaque ; germ slit lateral, indistinct and extending nearly the 
entire length of the spore ; hyaline envelope prominent and ex- 
tending greatly in water. (PL 12. f. 1-5.) 
Distinctive character: The violet stroma. 
Dry specimen : On horse dung, Rooks Co., Kan., Sept. 1896 
(Bartholomew). 
This species possesses considerable interest since it appears to 
show a transitional stage between the genus Hypocopra and the 
genus Poronia. Inthe majority of the species of Hypocopra, the 
stroma consists of a thin sheet on the surface of the substratum, 
while the perithecia are imbedded in a more or less dense feltwork 
of mycelium which decreases gradually downward; but here the 
whole stromatic mass in which the perithecia are imbedded is 
definitely bounded and consists throughout its central areas of a 
dense feltwork of mycelium which becomes still more condensed 
toward the outside where it forms a definite boundary. The 
whole may project slightly above the substratum. It would re- 
quire but a slight development of a stalk to give the appearance of 
a typical ۰ 
6. Hypocopra Dakotensis sp. nov. 
Perithecia sunken, scattered or aggregated in small groups of 
2—4, about 600 مم‎ x 800 p, pyriform and clothed below by a dense 
growth of fine white mycelium which becomes differentiated into a 
smooth cushion-like circular stroma at the surface; beak papil- 
liform, black, shining, and projecting through the stroma. 
Asci 8- spored, clavate to fusiform, broadly rounded above and 
contracted below into a short blunt stipe, 37-40 ft x 225-265 م‎ 
apical structure prominent and coloring bright blue with iodine, 
very evanescent: paraphyses filiform, septate, longer than the 
asci and mixed with them. 
Spores biseriate, ellipsoid, rounded at both ends, 17-19 م‎ x 
32-38 p», ranging from hyaline when young through yellow to 
dark brown and opaque; germinal slit lateral and extending nearly 
the entire length of the spore, gelatinous envelope prominent and 
swelling greatly in water. (Pl. 12. f. 6-8.) 
Distinctive character : Distinguished from Æ. merdaria by 
the biseriate slightly smaller spores and very evanescent asci. 
Cultivated specimen: On horse dung, Aberdeen, S. D., Sept. 
.1899 (Towne). 
