152 A MAXUAL OV MOSSES 



tic-pyriform, tapering below into a neck almost as long as the 

 rest of the capsule, brown, often somewhat unsymmetric and 

 incurved, scarcely constricted below mouth when dry and 

 empty ; mouth darker red or brown ; annulus rather narrow, 

 revoluble ; peristome-teeth linear-lanceolate, yellowish-pellucid 

 below, sub-hyaline and papillose above, strongly trabeculate, 

 lamellate and with faintly distinct divisural, inserted below the 

 mouth; inner peristome with carinately gaping segments al- 

 most as long as the teeth, cilia three, strongly appendiculate, 

 considerably shorter than segments; spores smoothish, yellow- 

 ish-pellucid, about .024— .027 mm. ; exothecial cells rectangular 

 below, irregularly cjuadi-ate to hexagpnal above, the three to 

 five upper rows much smaller, rounded-quadrate, brownish- 

 pellucid, all incrassate; operculum conic, obtuse to apiculate: 

 synoicous : mature in June and July. 



Crevices of walls and clififs and on wet, sandy earth: 

 Europe, Asia, North America through Canada and to the 

 northern United States. Not very common. 



Allegheny : Wet soil in crevices of clifif. Power's Run, 



April 18, 1906. O. E. J. (Figured). 



Beaver : On rotten log, Beaver Falls, May 11, 1907. 



O. E. J. 



Cambria : James. (Porter's Catalogue). 



McKean : On stump in swamp, Clarkdale Park, 



Bradford, June 20, 1897. D. A. B. 



6. Bryum pallescens [Schleicher] Schwaegriclien. 

 (B. turbinatum Drummond). 

 (Plate XIX) 

 Sub-cespitose, yellovvish-green : stems short, 4-9 mm., 

 sparsely branching, reddish, somewhat reddish-tomentose be- 

 low, erect ; leaves small and remote below, tufted above, ovate 

 below to ovate- or linear-lanceolate above, non-decurrent to 

 -sub-decurrent, erect-spreading, when dry more or less shrunk- 

 en, twisted, and appressed, reddish at base, margiijs recurved, 

 apex obscurely denticulate, cuspidate-acurairjate ; costa strong, 

 reddish, long-excurrent; leaf-cells rhomboid to elpngate, thin- 

 walled and rectangular at base, the margin wide and formed 

 of several rows of linear-prosenchymatous incrassate cells: 

 seta erect, slender, flexuous, lustrous-castaneous, in our speci- 

 mens about 2 mm. long: capsule oblpng-pyriform, about two- 

 fifths neck, horizontal to sub-pendulous, contracted below the 

 mouth when dry, brown ; annulus wide, revoluble ; lid conic- 

 apicijlate; teeth of tlie peristome yellpwish-pellucid, toiyards 

 apex sub7h)rarine and papjflpse, iinear-ti:iang.ular, strongly 

 trabeculate, lajiiellae and. divisural rathier indistinct ; segments 

 oi inner peristome slightly shorter, carinately split, cilia 3, 



