104 THIRTY-EIGHTH REPORT ON THE STATE MUSEUM. 
Diaporthe cylindrospora, n. sp. 
Pustules valsoid, somewhat prominent, erumpent, scattered ; perithecia 
numerous, fifteen to thirty or more, crowded, covered by the thin 
blackened surface of the inner bark, the ostiola rather long, crowded, 
exserted, about equalling the surrounding elevated epidermis, black; asci 
narrow, subfusiform, .oco18 to .oo22 in. long, .c0025 to .coo3 broad; - 
pores subcylindrical, crowded or biseriate, quadrinucleate, colorless, 
.0005 to .00065 in. long, .coo12 to .o0016 broad. 
Dead branches of wild bird cherry, Prunus Pennsylvanica. Adiron- 
dack mountains. June. 
I have not been able to detect any distinctly septate spores, yet in 
every other respect this fungus evidently belongs to this genus, and I 
have thought best to refer it here for the present. 
Didymospheria Typha, x. sp. 
Perithecia minute, punctiform, subglobose, covered by the epidermis, 
which is pierced by the scarcely papillate ostiolum ; asci cylindrical, 
.0025 to .0035 in. long, .0003 to .coo4 broad ; spores oblong or ellipti- 
cal, uniseriate, uniseptate, not at all or but slightly constricted at the 
septum, colored, .co04 to .0006 in. long, .o0002 to .o0025 broad ; para- 
physes filiform. 
Base of dead leaves of Typha latifolia. Guilderland, Albany county. 
May. 
Spherella conigena, m. sp. 
Perithecia small, scattered or gregarious, slightly prominent, erum- 
pent, black; asci subcylindrical, .0025 to .c035 in. long, about .oc005 
broad ; spores crowded, oblong-clavate, constricted at the septum, 
.0004 to .0005 in. long, .coo16 to .ooo2 broad, the cells unequal, the 
lower one tapering downward, narrower than the subglobose or ellipti- 
cal upper one. 
Fallen cones of hemlock, Adies Canadensis. Helderberg mountains. 
May. 
It differs from S. Pinsapo in its longer asci, and longer and differ- 
ently shaped spores, as well as in its habitat. A similar, if not the same, 
species occurs on cones of Thuja occidentalis in the same locality, but 
owing to the immaturity of the fruit it is still in doubt. 
_Venturia Cassandra, n. sp. 
Plate 3, figs. 11-14. 
Spots reddish-brown or brownish, sometimes with a grayish center ; 
perithecia on one or both surfaces, minute, .oo28 to .0032 in. broad, 
black, with a few short, straight, diverging black setz above, .oo12 to 
0016 in. long; asci oblong, gradually and slightly narrowed above, 
.0016 to .0018 in. long, .0003 to .oo04 broad ; spores biseriate, oblong, 
quadrinucleate, .oo005 in. long, .ooo2 broad. 
Living leaves of Cassandra calyculata. Caroga. July. 
The perithecia sometimes occur on the upper surface of the leaf, but 
oftener on the lower. They are so small that they are scarcely visible 
to the naked eye. Sometimes they emerge from beneath the scales of 
the leaf, and then they appear erumpent, although in reality they are 
superficial. 
