158 NORTH AMERICAN FLORA ([VoLumE 15 
tangular from the margin of the leaf to the costa, up to 8-12 u wide and 20-40 » long; peri- 
chaetial leaves rather longer than the stem-leaves, with the base more lax: seta 8 mm. long: 
capsule oblong, about 1.5 mm. long, nodding, somewhat curved and strumose, with obliquely 
rostrate lid; peristome-teeth dark, lanceolate, with 15-20 articulations, divided about one 
half down into 2 or 3 forks, more or less vertically striate and minutely papillose: calyptra 1.75 
mum. long, entire below, rough in the upper half. 
TYPE LocaLiIty: Olympic Mountains, Washington. 
DistTRiBUTION: Known only from the type locality. 
ILLUSTRATION: Bot. Gaz. 30: $1. 2, f. 1. 
This species is in size and colpr much like D. pellucidum fagimontanum Brid., but differs in the 
leaf-margins not recurved below and more serrulate, and in the strumose capsule.) 
