46 ROCHESTER ACADEMY OF SCIENCE. [March 24, 
species, Diplodia, 8, Sphaeropsis 5, Phyllosticta 4. Pestalozzia is repre- 
sented by one species, the rare Pestalozzia insidens of Zabriskie, found 
on elms, which from the beauty and perfection of its spores has been 
called the “ Prince of Pestalozzias” (Plate 4, fig. 9). We find a Septoria 
on common chickweed—Seproria Stellaria, R. and D., and Phyllosticta 
Cirsit, Desm., on Canada thistle, new to the United States, until 
discovered at Lyndonville.. Haplosporella Nerit which grows on 
oleander stems, Phoma capyrena on bittersweet branches, and Phyllosticta 
filipendulina on cultivated spirzea are forms which are new to New York 
State. 
The Hyphomycetes are represented in the collection by a number 
of species (also distributed among many genera) including Cercospora, 
Fusicladium, Ovularia and Ramudlaria, parasitic on living plants, and 
Botrytts and Verticillium on dead or decaying substances. While not 
exerting as destructive action upon vegetation as some other fungi, this 
group affords many delicate microscopic forms. ‘Two members of this 
group, viz: Hustcladium dendriticum or apple-peel fungus, and Ramularia 
Fragarie or the strawberry leaf blight, have been found with us, 
seriously injuring their respective hosts. 
The Hymenomycetes comprize nearly one-fourth the collection, and 
our flora will be found quite rich in these forms. In the Agaricus 
family we find many genera present with us, headed by Agaricus proper 
with 22 species, and including members of such genera as Russula, 
Lactarius, Marasmius, Coprinus, etc. The striking feature is that no 
specimens of the large genus Cortinarius, have, as yet, been found, 
although looked for with assiduity. Elsewhere in the eastern portion of 
New York State Cortinarii have been plentifully gathered. The family 
Polyporei is represented by anumber of generaand species. A few Boleti 
have been found, in the months of July and August, in out locality, but 
Polyporus has the larger number of species to its credit (about 20). 
It may be noted in passing that it has long been known to students 
of fungi, that Polyporus applanatus often attains a large size and that its 
pores are ferruginous, with a white orifice, which causes the inferior 
surface of the plant to appear as if white-washed. It has also been 
known that these whitened surfaces when bruised or scratched show 
quickly the brown underlying color. I have seen this property made 
use of in a decorative sort of way, which I have nowhere seen 
mentioned. Pictures of trees, houses and various objects are drawn 
upon the white inferior surface of the fungus and are permanent. In 
many country houses these prepared objects are found plentifully 
adorning mantels and bric-a-brac receptacles. 
