Polypodiaceae.
Adiantum pedatum L. Maiden hair. Plentiful throughout the State.
Asplenium angustifolium Michx. Narrow-leaved Spleenwort. Damp, shady soil, common.
Asplenium Bradleyi D. C. Eaton. Near Newburg, D. C. Eaton; Shawangunk Mts., C. Lown in State Herbarium. Rare.
Asplenium ebeneum Ait. Ebony Spleenwort. Frequent on edges of woods or rocks throughout.
Asplenium ebenoides R. R. Scott. Near Saugerties, Ulster Co., C. Lown, in State Herbarium. Rare.
Asplenium montanum Willd. On rocks about Lakes Mahonk and Minnewaska, Prof. C. H. Peck. New Paltz, H. Denslow. Rare.
Asplenium ruta-muraria L. Wall Rue Spleenwort. Limestone cliffs. Helderberg Mts., Professor Peck. Spraker’s and Chittenango Creek, Paine. Little Falls, Gilbert. Not common.
Asplenium Trichomanes L. Maiden hair Spleenwort. On limestone rocks. Middle and eastern parts of the State. Localities comparatively few. Common in the southern part, Clute.
Athyrium filix-foemina Roth. Lady fern. Very common everywhere. About 15 varieties occur in State.
Athyrium Thelypteroides Desv. Silvery Spleenwort. Damp woods. Common.
Camptosorus rhizophyllus Link. Walking fern. On shaded rocks. Not common but widely scattered.
Cheilanthes vestita Swz. Rare. Washington Heights, Manhattan Island, W. W. Denslow in herb. Gilbert; Poughkeepsie, Professor Peck.
Cystopteris bulbifera Bernh. Rocky banks and ravine sides near water. Common in the central, rare in the southern part of the State.
Cystopteris fragilis Bernh. Fragile Bladder fern. On gravelly hillsides and moist rocks. Common. Two varieties of this are occasionally met with, viz. dentata Hook, and magnasora Clute.
Dicksonia pilosiuscula Willd. Abundant. Growing in large beds along roadsides and in moist woodlands.
Nephrodium Boottii Davenp. Frequent in damp woods throughout the State.
Nephrodium cristatum Michx. Crested fern. Common in swampy grounds.
Nephrodium cristatum Clintonianum Gilbert. Growing generally with the type.
Nephrodium fragrans Rich. Fragrant Fern. Lake Avalanche and Cascadeville on cliffs. Professor Peck. Rare.
Nephrodium Goldienum Hook. Occasional in swampy ground throughout the State.
Nephrodium marginale Michx. Plentiful in rocky woods.
Nephrodium Noveboracense Desv. New York fern. Common in damp woods and thickets.
Nephrodium simulatum Davenp. Middle Village, L. I., Rev. G. D. Hulst; Babylon and Bellville, L. I., W. N. Clute; Oneida Lake, H. D. House. Rare.
Nephrodium spinulosum Desv. Probably rather common, but not recognized. Grows in damp woods throughout the State.
Nephrodium spinulosum dilatatum Baker. Infrequent. Catskill and Adirondack Mts., Professor Peck; Yates Co., Sartwell. In more elevated situations than the type.
Nephrodium spinulosum f. intermedium. Davenp. Our commonest woods fern.
Nephrodium theypteris Desv. Marsh fern. Abundant in wet ground, whether shaded or not.
Onoclea sensibilis L. Sensitive fern. Common in swampy ground.
Pellaea atropurpurea Link. On cliffs both in eastern and western New York. Scarce.
Pellaea gracilis Hook. Slender Cliff Brake. Not common, but occurring in many localities through the State. Always on rocks or cliffs.
Phegopteris Dryopteris Fee. Common in rich, damp woods.
Phegopteris hexagonoptera Fee. Rather scarce, but more frequent in the southern and western parts of the State.
Phegopteris polypodioides Fee. Common on wet rocks and in damp woods.
Polypodium vulgare L. Common Polypody. Common on rocks.
Polypodium vulgare cristatum Lowe. Rock City, Dutchess Co., Charles A. Coons.
Polystichum acrostichoides Schott. Christmas fern. Common in woods. The variety incisum with the type.
Polystichum Braunii Lawson. Summit, Schoharie Co., Catskill and Adirondack Mts., Professor Peck; Ilion ravine, Rev. H. M. Simmons in herb. Gilbert.
Pteris aquilina L. Bracken. Common throughout the State.
Pteris aquilina pseudocaudata Clute. The common form on many parts of Long Island. Clute.
Scolopendrium vulgare J. E. Sm. Hart’s tongue. Rare. Only in ravine of Chittenango Creek, Green Lake, Jamesville and a few other stations in the vicinity of Syracuse.
Struthiopteris Germanica Willd. Ostrich fern. Frequent in the Valley of the Mohawk and its tributaries. Western part of the State, Torrey; Southern tier, Clute.
Woodsia glabella R. Br. Crevices of rocky ledges at Lake Avalanche and in the pass north of it, Professor Peck; Haines’ Falls, Catskill Mts., Professor Peck. The station at Little Falls has been destroyed by excavation.
Woodsia hyperborea R. Br. Rare. Adirondack Mts. Only three stations known—at Cascadeville, Lake Avalanche, and Ampersand Mt., Professor Peck.
Woodsia Ilvensis R. Br. Rusty Woodsia. On rocks and cliffs. Rather scarce.
Woodsia obtusa Torr. In rich woods and on rocks. Widely spread but not common.
Woodwardia angustifolia Sm. Flatbush and Middle Village, L. I., Professor Peck; Babylon and Bellville, L. I., Clute; Staten Island, Torrey.
Woodwardia Virginica Sm. Chain fern. Frequent in swamps from Long Island to the western part of the State.