Page:The Living Flora of West Virginia and The Fossil Flora of West Virginia.pdf/215

 Pteridophyta.

FI LICES. POLYPODIUM, L. P. vulgare L. Common Polypody. Common on mossy rocks and in rocky woods. Kanawha: near Charleston (Barnes) ; near Coalburg (James). Gilmer: near Glenville (Mapel). Fayette: near Nuttallburg (Nuttall). Grant: near Bayard and along Buffalo Creek. Mon ongalia : along Cheat River. Tucker : along Beaver Creek and Blackwatef. Randolph : on Rich and Cheat Mountains (Millspaugh) ; near Whitmar (Greenman, 30) ; Greenbrier1 near White Sulphur Springs. Summers : near Hinton McDowell: near Elkhorn (Millspaugh). P. vulgare DECEPTUM Maxon, Proc. Nat. Mus., 23:628 (1901). Rhizoma slender, extensively creeping, covered thickly with spreading chaff ; stipe 5 to 8 inches long, greenish to stramineous : laminae very dark green above, lighter be low. 7 to 1 1 inches long, 2 to 4 inches broad ; pinnae distant from once to twice their width, broadest in the middle and tapering to an acute apex, the margin doubly crenate or occasionally nearly entire, the base broadly decurrent, veins sinuous and prominent in drying, the veinlets usually fork ing twice; tip of lamina long acuminate, as in P. faleatum; sori very large, often irregularly disposed. Type in the U. S. National Herbarium, Smithsonian In stitution, collected by E. L. Morris, No. 121 5, on rocks, along the Guyandotte River below Baileysville, Wyoming County, W. Va., alt. 1,100-1,250 feet, August 13-19, 1900. This fern has already been briefly characterized by Dr. Millspaugh as Polypodium vulgare forma biserrata (sic). The name biserratum being already preoccupied by a Mexican fern it becomes necessary, in referring to the West Virginian plant, to substitute a new name. In addi tion I would refer here Mr. Morris' 1207 collected near the type station ; also Pollard & Maxon's No. 25, collected Aug. 21, 1899, at Quinnimont, W. Va., which I have pre viously referred tentatively to the variety acutum Moore. From acutum it differs in the narrower and more spatulate pinnae, and commonly in the double crenation, for acutum is normally with entire, or at most slightly serrulate, pinnae