Annual Report of the State Botanist 1892 - MykoWeb

58
Beport of the State Botanist.
PloAvrigiitia morbosa Sacc.
This noxious fungus is subject to considerable variation in its
behavior and in its time of fruiting. Specimens were collected
on choke cherry, Primus Virginiana, near Karner, May 16th, in
which conidia and ascospores were both present in abundance.
CoTiidia-bearing excrescences were also found which were evi-
dently due to the sowing of spores, as they were alone on
branches containing no others. These probably were due to last
year's sowing of spores, for if of the present year's sowing they
must have developed with unusual rapidity. Specimens of this
fungus were also collected on the wild red cherry, Prunus Penn-
sylvanica, on the slopes of Blue mountain. The excrescences
were mostly single on the branches and gave no evidence of a dispo-
sition to spread by the extension of the mycelium. In many cases
the affected branch was already dead or in a dying condition, in
which cases there would, of course, be no spread of the disease
by the mycelium.
Cryptospora suffusa Tul.
Yar. nuda. Stroma not sutfused with a yellowish dust. On
dead stems of alder and hazel-nut. Karner and West Albany,
The black circumscribing line is also ap]5arently absent in some
cases.
NEW YORK SPECIES OF rLUTEOLUS.
Pleuteolus Fr.
Pileus slightly fleshy, conical or campanulate, then expanded,
viscid, the margin at first straight, appressed to the stem ; stem
subcartilaginous, distinct from the hymenophorum ; lamellae
rounded-free. Hym. Europ., p. 266.
This genus corresponds to the genus Pluteus in the pink-spored
series. The species are similar in structure to the species of that
genus, but they difi'er somewhat in the character of the stem and
in the color of the lamelhe and spores. Its species were sep-
arated by Fries from the genus Galera because of their viscid
pileus and free lamelhi?. I have included in it two species
formerly referred to Galera by me. They are Galera expansa