192 ROCHESTER ACADEMY OF SCIENCE. [June 22, 
to this date. The species belonging to the State but which are absent 
in our flora are given in their respective places in the list in italics, thus 
showing at a glance a comparison of the species of the State and those 
of this vicinity. Gray’s Manual of Botany, Sixth Edition, has been 
closely adhered to in the sequence of genera and species, the nom- 
enclature, and the authorities. 
OrverR, FILICES. 
Polypodium, Linnzus. PoLypopy. 
1. P.vulgare, Linneus. This little evergreen fern is rare in this 
region, being found only near water and in the shade, on rocks, and 
roots of trees. The most favored locality in the near neighborhood of 
Rochester is the east side of Irondequoit Bay, near the sand bar, in the 
shade, close to the bank. George T. Fish reports it on the west bank 
of the Genesee river without being more explicit ; probably somewhere 
between the city and Charlotte. Professor Lennon, of Brockport, 
mentions finding it in a ravine at Holley, Orleans County, twenty miles 
west of the city. It is sparsely scattered along the cliffs, in the shade, 
on the eastern shore of Canandaigua Lake. 
Adiantum, Linneus. MaIpENuHaIR. ° 
2. <A. pedatum, Linneus. One of the most graceful of all the 
numerous species of the Maidenhair fern. Common in rich and 
moist shady woods and on shady banks. Very generally distributed 
throughout. this region. 
Pteris, Linnzeus. BRAKE, OR BRACKEN. 
3. P.aquilina, Linneus. Very commonly distributed in partially 
shaded places and hillsides and old, cleared, but uncultivated grounds, 
and shaded roadsides. 
Cheilanthes, Swartz. Lip Fern. 
4. *C. vestita, Swartz. Absent. 
Pellza, Link. Cuirr BRAKE. 
Gh Pecraciis, Hooker, | Absent, 
P. atropurpurea, Link. Absent. 
W oodwardia, Smith. CuHain FERN. 
7. W. Virginica, Smith. A rare species in ‘this regionsigine 
writer has never seen it growing here. Reported by George T. Fish 
and Joseph B. Fuller at the Mendon ponds. 
8. W. angustifolia, Smith. Absent. 
*The species, the names of which are printed in italics, are absent from this vicinity, but are found 
at some other points in the State of New York. 
