80 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ASPLENIUM. 
Sori curved; leaves flaccid, bipinnate, 0.5 to 1 m. long... ..-..------- 1. A. cyclosorum. 
Sori straight; leaves firm, 6 to 20 cm. long, simply pinnate. 
Rachis brown; leaf segments oval........------------------+--- 2. A. trichomanes. 
Rachis green; leaf segments ovate............----------------- 3. A. viride. 
1. Asplenium trichomanes L. Sp. Pl. 2: 1080. 1753. SPLEEN WORT. 
Type LocaLity: European. 
Rance: Alaska to Nova Scotia, south to Arizona, Texas, and Alabama. 
SPECIMENS EXAMINED: Snoqualmie Falls, Parker, August, 1892; Snoqualmie, Hind- 
shaw; East Seattle, Hindshaw; west Klickitat County, Suksdorf 1228; Cape Horn, Piper 
4971; Quinault, Conard 220; Kirkland, Wittenmyer. 
ZONAL DISTRIBUTION: Humid Transition. 
2. Asplenium viride Huds. Fl. Ang]. 385. 1762. 
Type Locauity: “Habitat in rupibus humidis in comitatibus Eboracensi et Westmor- 
Jandica,’’ England. 
Rance: Alaska to Oregon, Colorado, and Vermont. Europe. Asia. 
SPECIMENS EXAMINED: Wenache Region, Brandegee 1216; near Mount Baker, Fett. 
ZONAL DISTRIBUTION: Hudsonian or Arctic. 
ATHYRIUM. 
1. Athyrium cyclosorum Rupr. Beitr. Pflanzenk. Russ. Reich. 3: 41. 1845. 
Type Loca.ity: “ Petropawlowsk! et Unalaschka! Kadiak!” 
Range: Alaska to Nebraska and California. Kamchatka. 
SPECIMENS EXAMINED: Olympia, Henderson, August 23, 1892; Stehekin, Whited 1387: 
Stevens Pass, Sandberg & Leiberg 771; Skagit Pass, Lake & Hull, August 24, 1892; with- 
out locality, Vasey in 1889; Clarks Springs, Kreager 34. 
ZONAL DISTRIBUTION: Humid Transition to Canadian. 
This species has commonly been referred to A. filix-foemina (L.) Roth, from which it 
appears amply distinct. 
POLYSTICHUM. 
Leaves simply pinnate. 
Leaf-stalk short; segments triangular or broadly lance- 
Olate.. 2.22.22 2. ee ee ee ee eee ee ee eee 1. P. lonchitis. 
Leaf-stalk long; segments linear-lanceolate. 
Leaves 60 to 90 cm. long, the segments not over- 
lapping ........------------- 2 eee ee ee ee ee eee 2. P. munitum. 
Leaves about 30 cm. long, the segments overlapping.. 2a. P. munitum imbricans. 
Leaves bipinnate or bipinnatifid. 
Sori few; leaves bipinnate at base............----.-.--- 3. P. lemmoni. 
Sori numerous; leaves bipinnatifid at base... .....------ 4. P. scopulinum. 
1. Polystichum lonchitis (L.) Roth, Tent. FI. Germ. 3:71. 1800. HOu.y FERN. 
Polypodium lonchitis L. Sp. Pl. 2: 1088. 1753. 
Aspidium lonchitis Sw. Schrad. Journ. Bot. 1800*: 30. 1801. 
Type Locauity: “Habitat in alpinis Helvetiae, Baldi, Arvoniae, Monspelii, Virginiae.’”’ 
Rance: Subarctic regions southward to California, Colorado, and Wisconsin. Europe. 
Asia. 
SPECIMENS EXAMINED: Olympic Mountains, Piper, August, 1895; Mount Rainier, Piper, 
August, 1895; Goat Mountains, Allen, August 5, 1895; Skamania County, Suksdorf 
2056; mountains near Ellensburg, Brandegee 1220; Fish Lake, Dunn, August 8, 1900; 
Bridge Creek, Elmer 659. 
ZONAL DISTRIBUTION: Arctic and Hudsonian. 
