HYPNUM. 221 



Var. /S. GEAOiLESCENS. Irregularly branched, pro- 

 cumbent. L. smaller, shining, reddish-brown. 



Yorkshire, Scotland. 



Var. 7. viEBSCENS, Boulay. St. long. Br. fascicu- 

 late, pinnate. L. subfalcate-secund, apical, strongly 

 falcate, scarcely auriculate, nerved close to apex, deep 

 green, cells all narrow. Paraphyllia few. Probably a 

 distinct species. 



Malham, Yorkshire (W. West). 



541. H. sulcatum, 8chpr. Loosely csespitose. St. 

 rigid, without radicles, subpinnate. L. partly broadly 

 elongate-lanceolate, partly sharply lanceolate from 

 broadly ovate, minutely denticulate base, long and 

 deeply sulcate, all reflexed, hamulose, nerve absent or 

 slender, cells narrowly hexagono-rhomboid, obtuse at 

 apex, broader at base, quadrate at auricles. Para- 

 phyllia numerous. 



Mountainous places. 



Ben Lawers, July, 1865 (G. B. Hunt). 



Sub-genus 5. Bhytidium. 

 Robust, prostrate or ascending, irregularly pinnate, 

 without radicles. L. strongly sulcato-rugose, upper 

 cells vermicular-linear, middle lower sinuoso-rectangu- 

 lar, at margin and angles minutely quadrate, nerve 

 siacle, narrow. Calyptra large. Caps, oblong, cer- 

 nuous or horizontal, lid beaked, annulus broad. 

 DioiOous. 



542. H. rugosum, Ehr. St. 2 — 3 inches, rigid, erect, 

 densely tufted. Br. recurved ; st. 1. crowded, spirally 

 imbricate and falcato-secund, serrulate and recurved 

 at margin, lanceolate-acuminate from a broad base, 

 rugose, nerved more than half way ; br. 1. often erecto- 



