50 THIRTY-FOURTH ANNUAL REPORT OF THE 
term to designate those species that have simple septate stems, and the 
latter those that have the stems made up of several compacted or 
coalescing filaments. This application of these terms is exactly 
reversed by some of the continental mycologists. We have thought 
best to follow the English mycologists in our use of these generic 
names. 
Periconia spherophila, 7. sp. (Sporocybe of some authors.) (Plate 2, 
figs. 17-20.) Stem slender, cylindrical, about .03 in. high, black, 
growing like a rostrate ostiolum from Spheriaceous perithecia ; spores 
few, loose, scarcely forming a head, subglobose or broadly elliptical, 
colored, .0003 in. to .00935 in. long. On perithecia of Spheria mor- 
bosa. Adirondack mountains. July. This fungus usually occupies 
patches of perithecia. In the places where it occurs nearly every 
perithecium supports a fungus, but other parts of the same excresence 
will be wholly free from it. It is not often that the fungus occupies 
all the excrescence. Growing, as it does, from the apex of the perithe- 
cium, it, with its matrix, simulates the appearance of a Ceratostoma- 
ceous Spheria, the Periconia answering to the rostrate ostiolum. The 
stems are scarcely half a line high and are composed of densely com- 
pacted filaments. They are often coated by a pellucid membrane, It 
is not arare fungus in elevated localities in the Adirondack moun- 
tains, where Spheria morbosa is plentiful on the wild red cherry, Prw- 
nus Pennsylvanica. So intimate is its connection with the Spheeria 
that it is difficult to believe that it is a distinct fungus rather than a 
second form of development of the Spheria. But the spores are 
clearly produced at the apex of the pseudo ostiolum just as in Peri- 
conia and it has therefore seemed to me a distinct fungus, but one of 
very singular character. I find no frnit of the Spheria in any of the 
attacked perithecia. It may be that this Periconia is one of nature’s 
antidotes to the too rapid multiplication of this noxious Spheeria, but 
before this can be positively affirmed the specimens should be examined 
in winter or spring when the Spheria matures its spores. 
Graphium gracile, 2. sp. (Plate 1, figs. 11-13.) Spots large, ir- 
regular, reddish-brown ; stems hypophyllous, slender, attenuated up- 
wards, black or blackish-brown, pale at the tips where the component 
filaments diverge and are colorless, subnodulose or rarely slightly 
branched ; spores oblong, colorless, .0005 in. to .001 in. long, .0002 in. 
to .00025 in. broad. Living leaves of red raspberry, Rudus strigosus. 
Catskill mountains, Aug. The slender subulate stems of the fungus 
are so scattered that they are easily overlooked. ‘They are, however, 
more easily seen because of the whitish tomentum of the leaf through 
which they grow. The spores fall off easily. ‘They sometimes con- 
tain a small nucleus near each end. 
Macrosporium concinnum, Berk. Dead twigs of striped maple, Acer 
Pennsylvanicum. Catskill mountains. Aug. 
Helminthosporium Tiliw, #7. Dead branches of bass wood, Tilia 
Americana. Helderberg mountains. Noy. This was associated with 
Ex osporium Tilia, from which it is distinguished by its narrower 
spores with more numerous septa and by the absence of the hard 
stroma which belongs to the Exosporium. The tufts in our specimens 
are almost wholly made up of spores, 
—S = 
