148 SYNOPSIS OF BErTISH MOSSES. 



reflexed, entire, nerved nearly to apex, upper ones 

 largest. Caps, small, globose, dark-coloured or black, 

 cernuous, on a longish. red seta, lid small, conical. 

 Moist alpine rocks, &c. Spring. 



Fam. 3. Bartramiae. 



63. BARTRAMIA, Eedw. 



a. Caps, erect. Perist. single. 



312. B. stricta, 'Brid. St. loosely tufted, glaucous, 

 green. L. erecto-patent, rigid when dry, lanceolate- 

 subulate, minutely serrate, nerve excurrent into a 

 serrate arista. Caps, ovate-globose, furrowed when 

 dry, seta four-sided at summit, twisted to right when 

 dry, lid convex or mammillate. [Bry. Eur., iv. t. 316. 

 Schp. Syn., 609.] 



On the ground and stones. Early summer. 



Maresfield, Sussex (Geo. Davies), 1862. 

 h. Caps, cernuous, lid oblique. Perist. double. 



313. B. ithyphylla, 5nci!. St. 4 — 2 inches. L. from 

 an erect broad base, sharply bent back, and lanceolate- 

 subulate, rigid, serrulate, not crisped when dry, 

 broadly nerved to apex, nerve occupying all the subula. 

 Caps, globose, almost erect or cernuous, deeply sulcate 

 when dry. Synoicous. 



Alpine and subalpine rocks. June. 



314. B. pomiformis, Linn. St. \ — 2 inches. L. 

 spreading, linear-lanceolate, not concave, doubly spinu- 

 loso-serrate, rough, margin revolute below, crisp when 

 dry, nerve excurrent into a spinulose arista. Caps, 

 spherical, cernuous, on a flexuose seta, lid small, conical. 

 Monoicous. 



Dry >aiidy banks. May. 



Var. /S. CEiRPA. "L. longer, less crowded. Branches 

 often longer than fruit-stalk." 



