38 SYNOPSIS OF BRITISH MOSSES. 



stolons. L. patent or more or less complanate, ovate 

 or elongate-lanceolate, shining, nerved or nerveless, 

 cells densely linear, minutely quadrate at basal angles. 



111. Lescurseaj Schp. Primary st. creeping, fertile 

 br. ascending, fasciculate. L. patent-erect, nerved, 

 smooth, sulcate. Perist. t. confluent at base, narrowly 

 lanceolate, int. processes scarcely as long as teeth, 

 irregular, appendiculate. 



112. Cylindrothecium, iSc^p. Broadly ceespitose, low 

 or erect. Br. more or less distinctly pinnate. L. 

 complanate or patent. Calyptra as long as caps., 

 which is elongate-cylindrical, lid conical. Perist. t. 

 linear-lanceolate, processes carinate, free almost or 

 quite to base. 



113. Climacium, W. and M. Dendroid from a sub- 

 terranean rhizome. St. 1. lower squamiform, colour- 

 less, upper erecto-patent, decurrent, sulcate, thinly 

 nerved, oblong-lanceolate or ovate. Calyptra dimi- 

 diate. Caps, erect, oblong-cylindric, lid beaked. 

 Annulus absent. Perist. large, ext. t. linear-lanceolate, 

 with a serpentine dorsal line, processes from a narrow 

 basal membrane, perforate. 



114. Isothecium, Brid. Dendroid from a creeping 

 primary st. L. patent, broadly ovate or ovate-oblong, 

 more or less suddenly acuminate, concave, nerved 

 about halfway, cells linear, at base quadrate. Caps, 

 erect, oblong-cylindric, lid conical, with a thick beak. 

 Perist. int. processes entire, cilia imperfect. Dioicous. 



115. Orthotheoium, Schp. Slender, prostrate, and 

 irregularly branched, or erect and br. fastigiate. Li 

 subsecund or erecto-patent, elongate-lanceolate, acu- 

 minate, entire, nerveless, sulcate, basal cells scarcely 

 quadrate. Calyptra small, fugaceous. Caps, erect. 



