202 RECENT ADDITIONS TO OUR MOSS FLORA. 
Comal leaves longer and broader. Capsule in the moist plant exserted 
gate, often bifid at apex, 
here and there at the suture, pale. Cilia rather shorter, filiform. 
Calyptra short conic, very rough with yellowish ramenta. Spores 
pale green. 
Hab.—On Beech and Birch trees in subalpine districts. Fr. May, 
4. W. Bruchii, Lindo. Ulota Bruchit, Hornsch. Bridel Bry. Un. i., 
p. 794 (1826). Orthotrichum coarctatum, Bry. Eur.—C. Miill. 
Monoicous, pulvinate, resembling W. ulophylla, bright yellow- 
green above, ferruginous below. Stem erect or ascending from a de- 
angular aight rows, the upper with smaller papilla. Calyptra 
straw-coloured, deeply cleft, with abundant ramenta e much 
exserted, gradually attenuated into a long neck, cylindric-oval, pachy 
dermous, yellow-brown, 8-costate, when dry an lon- 
rows, quadrate, thickened in their longitudinal walls by a rufous 
stratum ; those of the sulci laxer. Lid pale, convex at base, rostel- 
late. Teeth bigeminate, finally cleft, longer, reflexed when dry, pale ; 
cilia 8 long as teeth, or sometimes 16 alternately longer and shorter, 
composed of 2 rows of cells. Spores green. 
Hab.—On trees, not uncommon. Fr. J uly, August. 
5. W. vittata, Braithw. Ulotavittata, Mitten Journ. Lin. Soc. viii., 
p. 3 (1865). Orthotrichum calvescens, Wils. MS.—Hobkirk Syn., 
p. 95 (1873). Ulota calvescens, Schpr. Muse. Eur. Nov., fase. 
3-4 (1866), 
