rLAGIOTHKCIUM. 209 



nerved nearly to apex. Caps, shortly ovate, cernuous, 

 lid convex, with a very long beak. November. 



Rocks and stones in rivulets. Frequent. 



Fam. 6. Hypnae. 



126. PLAGIOTHECIUM, Bchf. 



a. Peristome teeth remotely articulate, cilia without 

 appendages (ciliol^). 



Dioicous. 



507. P. latebricola, Wils. {Leshea, Bry. Brit.). St. 

 short, slender, sparsely bi-anched, suberect. L. laxly 

 complanate or subsecund, ovate-lanceolate, tapering, 

 acute, entire, slightly concave, decurrent, faintly 

 2-nerved or nerveless, margin recurved. Caps, elliptic- 

 oblong, turbinate when dry, lid acutely conical, large, 

 apiculate. Winter. 



Moist shady woods, decaying trunks, and ferns. 



i. Peristome teeth densely articulate, basal membrane 

 broad, processes with long cilia. 



1. Leaves distichous, complanate, rarely complanate- 

 secund. 



608. P. pulchellum, Hedw. St. arcuate, short, densely 

 tufted, suberect. Br. fastigiate. L. crowded, secund, 

 subfalcate, lanceolate, gradually tapering from base to 

 apeix, entire, generally nerveless. Caps, oblong, sub- 

 erect, curved, lid conical, muticous. Monoicoas. 



Mountainous shady rocks, &c. June — October. 



509. P. nitidulum, Wahl. Broadly low, csespitose. 

 St. prostrate. Br. erect. L. complanate, rarely sub- 

 secund, larger than last, broader and more shining, 

 with a longer apiculus. Caps, cernuous, horizontal 



P 



