1891. | SEELYE—ON INDIGENOUS FERNS. 195 
27. A. Boottti, Tuckerman. Absent. 
28. A. cristatum, Swartz. ‘he Crested Wood Fern is not an 
uncommon inhabitant of moist and marshy woods and thickets, and 
even in marshy places in cleared grounds throughout our region. The 
sterile fronds are evergreen. 
29. A. cristatum, var. Clintonianum, Eaton. Reported by 
Dr, Searing, also by W. H. Lennon, as found at Holley. It appears in 
my own collection of this region without exact locality being men- 
tioned. 
30. A. Goldianum, Hooker. Goldie’s Wood Fern must be 
considered rare in this region. It is an inhabitant of rich and moist 
woods and shady places. It is reported by Fish and Fuller in the town 
of Gates, and by W. H. Lennon in the ravine at Holley. 
31. A. marginale, Swartz. The Marginal Shield Fern is one of 
the most common species. Dry grounds more or less shaded and 
rocky hillsides. 
32. A. acrostichoides, Swartz) Commonly known as the 
Christmas Fern. Its fronds are evergreen and are collected for the 
winter decoration of rooms, for which it is prized. Common in rocky 
woods. 
33. A. aculeatum, var, Rraunit, Koch. Absent. 
Cystopteris, Bernhardi. BLADDER FERN. 
34. C. bulbifera, Bernhardi. This graceful fern is found in 
this region wherever the situation is favorable. It inhabits the moist, 
rocky walls of shaded ravines, depending from their surfaces. River 
banks north of the city, and Palmer’s Glen, on the grounds of James 
Palmer of Brighton; reported by W. H. Lennon in the ravine at 
Holley; in the glen at Seneca Point, Canandaigua Lake; common 
at Watkin’s Glen. 
35. C. fragilis, Bernhardi. The Brittle Fern is very commonly 
distributed, being found on shaded cliffs, rocky banks, shaded or 
wooded hillsides and shaded banks of brooks or ditches. The fronds 
vary greatly, in different plants, in regard to the shape of the pinnules, 
some being merely toothed, others deeply incised. Besides the common 
form which all of our local collectors report, Dr. Searing reports var. 
dentata. Specimens in my possession, collected on the farm of the late 
George B. Benjamin, in the town of Ogden, on the line road between 
Gates and Ogden, and but a few rods north of the Buffalo Road, 
present a form the most delicate and graceful I have ever seen. It 
