PIPER FLORA OF THE STATE OF WASHINGTON. 8o 



OPHIOGLOSSACEAE. 



Sterile portion of leaf simple, entire : veins netted Ophioglossum. 



Sterile portion of leaf pinnately divided or conipoinid : veins free Botryciiium. 



OPHIOGLOSSUM. 



1. Ophioglossum vulgatum L. Sp. PI. 2: 1062. 1753. Adder's tongue. 



Type locality: " Habitat in Eiuopae pratis sylvaticis." 



Range: Washington to Arizona, Texas, and Maine. Europe. Asia. 



Specimens examined: Skamania County, Suksdorf, June 26, 1895; Falcon Valley, 

 S uJcsdorf 121S. 



Zonal distribution: Ihunid Transition. 



BOTRYCHIUM. Grape fern. 



Bud in a cavity at one side of the base of the stem: leaves thin, ternate, 



then pinnately much divided 1. B. virginianum. 



Bud inclosed in the base of the stalk. 



Sterile portion of leaf arising near the base of the rather large plant. 2. B silaifolium. 

 Sterile portion of leaf arising near the middle of the usually small 

 plant. 



Green part of leaf oblong, its segments fan-shaped. 



Segments truncate at base, overlapping 3. B. lunaria. 



Segments cuneate at base, distant A. B. ononJagense. 



Green part of leaf triangidar or ovate, the segments not fan- 

 shaped. 



Segments lanceolate, acute; niidvein continuous 5. B. lanceolatuin. 



Segments oblong-ovate, obtuse; midvein dissipated 6. B. neglectum. 



1. Botrychium virginianum (L.) S\v. Schrad. Journ. Bot. 1800-: 111. 1801. 

 Osmunda v'trgbdana L. Sp. PI. 2: 1064. 1753. 



Ty'pe locality: '"Habitat in America." 



Range: British Columbia to Labrador, south to Washington, Arizona, Texas, and 

 Florida. 



Specimens examined: Seattle, Piper 906. 

 Zonal distribution: Transition. 



2. Botrychiuni silaifolium Presl, Rel. Haenk. 1: 76. 1825. 

 Botrychium occidentale Underw. Bull. Torr. Club 26: 538. 1898. 

 Type locality: "Hab. in Nootka-Sound." 



Range: British Columbia and Washington. 



Specimens exa^mined: Lake Cushman, Henderson 18.52; Seattle, Tarleton, July, 1894;- 

 Piper, October, 1892; Lake Wenache, Sandherg d' Leiherg 6.39; Usk, Krenger 360; Lake 

 Chelan, Elmer, September, 1897. 



Zonal distribution: Humid Transition. 



This species appears in Suksdorf's List as Botrychium ternatuin Swartz. 



3. Botrychium lunaria (L.) Sw. Schrad. Journ. Bot. 1800-: 110. 1801. 

 Osmunda lunaria L. Sp. PI. 2: 1064. 1753. 



Type locality: European. 



Range: Washington to Colorado and Labrador and northward. Europe. Asia. 



Specimens examined: Mount Rainier, Smith, Octohev, 1888; Mount Adams, (S'«A-S(/o//, 

 July 11, 1886. 



ZoN.A.L distribution: Arctic. 



The Mount Adams specimen is the l)asis for the inclusion oi Botrychium simplex Hitch- 

 cock in Suksdorf's List. 



