December 3, 1914 103 
ADIANTUM PEDATUM ALEUTICUM Rupr. Maiden Hair fern. 
Cominon on moist, shady slopes. 
PTERIDIUM AQUILINUM PUBESCENS Underw. Brake fern. 
Very abundant on cut over upland soil. 
POLYSTICHUM MUNITUM (Kaulf.) Pres]. Sword fern. 
Common in upland forests. 
STRUTHIOPTERIS SPICANT (L.) Weiss. Deer fern. 
Common in the foothills, otherwise rare. 
ASPLENIUM VIRIDE Huds. Spleenwort. 
In woods between Mt. Baker and Baker lake. 
ATHYRIUM CYCLOSORUM Rupr. Soft fern. 
Very abundant in rich, moist forests. 
DRYOPTERIS SPINULOSA DILATATA (Hofim.) Underw. Wood fern 
Samish lake, Su&sdorf 1029. 
OPHIOGLOSSACEAE 
BOTRYCHIUM SILAIFOLIUM Presl. Grape fern. 
Rare in a peat marsh on Muenscher’s farm. 
CALAMOPHYTA 
EQUISETACEAE 
EQUISETUM ARVENSE L. Horse tail. 
Common and widely distributed. 
EQUISETUM HYEMALE I, Scouring rush. 
Uncommon in most protected copses. 
EQUISETUM FLUVIATILE L. Ten Mile. 
Common in wet ground. 
PEPIDOR EY ax 
LYCOPODIACEAE 
LYCOPODIUM CLAVATUM L,. Club moss. 
Uncommon in woods of foothills, Nooksack mountain. 
LYCOPODIUM SELAGO L, 
Rare, east slope of Mt. Baker. 
SELAGINELLACEAE 
SELAGINELLA RUPESTRIS ly. 
On exposed rocky bluffs, south of Bellingham. 
