p 
Explanation of Plate xlh. — Fig. r. Plant natural size, showing only the 
upper portion. Fig. 2. A portion of a leaf, showing two fertile nodes, and fertile 
rays from the lower node, magnified 25 diameters. Fig. 3. Another leaf, showing 
tvvo twin sporangia, each pair from one cell (divided horizontally^. Figs. 4 and 5. 
Tips of leaves, magnified 200 diameters. Fig. 6. The elongated oblique coronula. 
^^g' 7- Top of an old sporangium after the coronula has become detached. Fig, 
8. The nucleus magnified 50 diameters. 
New Species of Fungi. 
By J. B. Ellis and Benjamin M. Everhart. 
Sph^rella (Lyf:sTADiA) POLYSTIGMA. — Perithccia large, scat- 
tered thickly over the lower surface of the leaf, covered by the 
blackened cuticle, subhemispherical, collapsing; ostioluni papiliiform, 
at length perforated; asci 35-40x8//, oblong, sessile; sporidia biseri- 
ate, ovate-elliptical, continuous, subhyaline, 10-12x3-4//, In shape 
very much like apple-seeds. 
Allied to S. carpinea. On fallen oak-leaves. Ohio. Kellermann. 
Sph^.rella pandurata. — -Hypophyllous ; perithecia globose 
(-17- 25'"'''), buried in the substance of the leaf, and, except the 
shghtly projecting, rounded apex, covered by the blackened cuticle; 
ostiolum papilliform, minute; asci oblong-cylindrical, 50x7/^; sporidia 
biseriate, fusiform, 4-nucleate, yellowish, constricted in the middle 
and bulging out each side of the constriction, 10-12x3//. 
On fallen oak-leaves. Plainfield, N. J., September, 1883. G. F, 
Meschutt. 
Melanconis Everhartii, Ellis.— Perithecia globose (.25"""*) in 
compact clusters of 4-18, just under the outer layer of the inner 
bark, which is raised into little tubercles about i"*"^- in diameter, from 
which arise, in a compact fascicle, piercing the epidermis, the short- 
cylindrical, obtuse ostiola, their tips perforated with a rather large 
circular opening; asci clavate-cylindrical, 1x4-120x19//; paraphyses 
s^out, sparingly septate and granular; sporidia biseriate, oblong-ellip- 
^ical, uniseptate, nearly hyaline 34-38x11/^, 
On a fallen sapling of maple. West Chester, Pa., June, 1882. 
The ostiola throw off the epidermis, and the perithecia themselves 
soon after fall out, leaving light colored, circular si)Ots which mark 
the place of their attachment. The fruit is almost exactly that of 
'^. Modonia^ Tub, but the more elongated ostiola, the smaller peri- 
thecia and deciduous habit distinguish it. 
Melanconis (Melai^^coniella) Meschuttii. — Perithecia 10-20 
^:^5x.33™"'-), circinating in a thin, lenticular, black, orbicular or ellip- 
tical stroma seated on the surface of the inner bark; ostiola short 
cylindrical, united in a dirty brown disk bursting through transverse 
cracks in the epidermis, their tips, in well developed specimens, dis- 
tinctly 4-cleft; asci (spore-bearing part) about 75x10//; sporidia 
biseriate, elliptical, very slightly curved, uniseptate and slightly con- 
stricted, subhyaline at first, with a faint, transparent, horn-shaped ap- 
pendage at each end, but these soon becoming absorbed and the 
spore becoming brown, 14-16x6-8/^ (mostly 15-16x6/^.) 
On dead limbs of birch. Plainfield, N. J., June, 1883. George 
J^- Meschutt. Gelaiinosporium betulinum, Pk., occurs on the 
branches, and where the epidermis is weaker, the appearance of the 
