86 CONTEIBUTIONS FROM THE NATIONAL HEEBARIUM. 



7. Equisetum fiuviatile L. Sp. PI. 1: 1062. 1753. 

 Equisetum limosum L. loc. cit. 



Type locality: "Habitat in Europa ad ripas laciuim, fluviorum." 



Range: Alaska to Labrador, south to Washington and Virginia . Europe. Asia. 



Specimens examined : New London, Lamb 1203 and June 12, 1897 ; Lake Cushman, Piper, 

 August, 1895; Henderson 11^; Skamania County, 5'uJtsJor/2164 and August 17, 1892; Seat- 

 tle, Piper, July 10, 1895. 



Zonal distribution: Humid Transition to Hudsonian. 



One of Suksdorf' s specimens was distributed and included in his list as E. littordle Kiihle. 



8. Equisetum palustre L. Sp. PI. 2: 1061. 1753. 

 Type locality; "nal)itat in Europae aquosis." 



Range: Alaska to Xova Scotia, south to Washington and Xew York. Europe. 

 Specimens examined: West Klickitat County, Sulctdorf 46. 



LYCOPODIACEAE. 



L.YCOPODIUM. Clubmoss. 



Sporangia in the axils of ordinary leaves. 



Sporangial leaves forming a terminal spike 1. L. inundatum. 



Sporangial leaves subterminal, tlie terminal leaves sterile. 



Stems rigid ; leaves all alike, ascending 2. L. selago. 



Stems not rigid; leaves spreading, of two sorts, long and short. 3. L. luddulum. 

 Sporangia in the axils of modified leaves crowded in spikes. 

 Stems leafy up to the spikes or nearly so. 



Leaves 6 to 8-ranked, spreading 4. L. onnotiunm . 



Leaves 5-ianked, appressed. 5. L. sifchense. 



Stems of the fruiting branches nearly naked. 



Leaves all alike ; stems cj'lindric Q. L. clmmtum . 



Leaves of two forms ; stems flattened ~ . L. complanatum . 



1. Lycopodiuni inundatum L. Sp. PI. 2: 1102. 1753. 

 Type locality: European. 



Range: Washington to Newfoundland, south in the Alleglianies to Georgia. Europe. 

 Asia. 



Specimens examined: Chambers Lake near Olympia, i/enc/erso/f 2048; Spana way Lake, 

 Fletf. 



2. Lycopodium selago L. Sp. PI. 2: 1102. 1753. 

 Type locality: European. 



Range: Alaska to Labrador, south to Washington, Michigan, and Carolina. Europe. 

 Asia. 



Specimens examined: Olympic Mountains, Piper 2232; Baldy Peak, Lamb 1390; 

 Mount Baker, Flett 162; Snoqualmie Falls, Parker, August, 1892; Snoqualmie Pass, Piper, 

 August, 1892; Stevens Pass, Sandberg c& Leiherg, August, 1893; Bridge Creek, Elmer 686. 



Zonal distribution: Arctic. 



3. Lycopodium lucidulum Michx. Fl. 2: 284. 1803. 



Type locality: "Hal), a Canada ad Carolinam Montosam." 



Range: British Columbia to New Brunswick, south to Washington, Iowa, and North 

 Carolina. 



Specimens ex.amixed: Skykomish River, Witienmijer: Stevens Pass, Sandberg cfr Leiberg 

 777; Mount Baldy, Conard 276. 



Zonal distribution: Canadian. 



