152 A MANUAL OF MOSSES 



tic-pyriform, tapering belo\v 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 

 cinptv; 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 di\ isural, 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 quadrate, to hexagonal 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 cliffs and on wet, sandy earth : 

 Europe, Asia. North America through Canada and to the 

 northern United States. Not very common. 



Allegheny : \Vet soil in crevices of cliff, Power's Run, 



April 18, 1<X)6. O. E. J. (Figured). 

 Heaver : On rotten log. Reaver Falls, May 11, 1 ( X)7. 



O. E. J. 



Cambria : James. (Porter's Catalogue). 



McKean : On stump in swamp, Clarkdale Park, 



P.raclford, June 20, 1897. D. A. B. 



6. Bryum pallescens | Schleicher] Schwaegrichen. 



(B. turbinatmn Drummond). 



(Plate XIX) 



Sub-cespitose, yellowish-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, margins recurved, 

 apex obscurely denticulate, cuspidate-acuminate ; costa strong, 

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

 walled and rectangular at base, the margin wide and formed 

 of several rows of linear-prosenchymatous incrassate cells : 

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

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

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

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

 apiculate ; teeth of the peristome yellowish-pellucid, towards 

 apex sub-hyaline and papillose, linear-triangular, strongly 

 trabeculate, lamellae and divisural rather indistinct ; segments 

 of inner peristome slightly shorter, carinately split, cilia 3. 



