CATALOGUE. 303 
| Orpen. F ILICKES. 
Susorver. POLYPODIAC EA. 
Trsp i POLYWPODIE®. 
I, POLYPODIUM. Linn. 
Polypodium vulgare, Linn. 
Mountains of Colorado (Hall and Harbour, Vasey), 2nd on rocks at the Twin Lakes, Wolf. 
Cottonwood Cafion, Wahsatch Mts., Watson. The Colorado plants are uniformly small as compared 
with the common eastern form, measuring from less than an inch up to three inches high, and pro- 
portionately narrow. The segments are small and numerous for the size of the plant. The Wahsatch 
specimens are rather larger, but narrow, and with very obtuse segments, much as in Oregon specimens. 
In British Columbia and Unalashka, the species nearly resumes its eastern character. 
- Var. occidentale, Hooker. 
Frond ample; 6-10 inches long; segments long-pointed, sharply ser- 
rated towards the point; texture chartaceous—Flor. Bor. Am. ii, p. 258. 
rom San Francisco and Benicia northwards, often growing on trees. This form of the species 
scarcely deserves to be separated as a variety, especially since nearly similar forms occur in Europe, and 
more rarely in the Atlantic States. . 
POLYPODIUM FALCATUM, Kellogg, Proc. Cal. Acad. i, p. 20, (P. Glycyrrhiza, D, C. Eaton, in 
Sill. Jour. July, 1856, p. 138), with larger and thinner fronds (12-15 inches long), the segments numerous 
(3-4 inches long), tapering from a broad base to a very slender point, sharply serrate, veins free, with 
mostly four veinlets, fruit-dots smallish, nearest the midrib, occurs outside of our limits, but may possibly 
be discovered within them.—Shoalwater Bay, Washington Territory, J. G. Swan.. Port Orford, Oregon, 
Gen. A. V. Kautz. Usually on trees: considered a form of P. vulgare by Mr. Baker (Synopsis Filicum, 
p- 334). 
Polypodium Californicum, Kaulfuss. 
Rootstock creeping, chaffy with light-brown scales; stalks straw- 
colored when dry, fronds from ovate to oblong-lanceolate, pinnatifid to the 
midrib; segments numerous, mostly oblong-linear, the lower ones narrowed 
at the base and decurrent, the upper gradually smaller and closer placed, 
passing into the incised apex of the frond; texture papery-herbaceous ; 
veinlets 4—6 to each vein, the lowest veinlet bearing an ovoid or elliptical 
fruit-dot, the upper ones anastomosing occasionally near the margin of the 
segment.—Enum. Fil p. 102. P. intermedium, Hooker & Arnott, Bot. 
Beechey, p. 405. 
California, mostly near the coast, from San Diego and Guadalupe Island northward. Plant in 
general resembling P. vulgare, the fronds usually of ample size, 10-18 inches high, 3-5 inches broad. It 
