230 SYNOPSIS OF BRITISH MOSSES. 



entire, strongly nerved almost to apex, cells narrow 

 above, at middle lax rhomboid, liexagono-rectangular 

 at base and angles. Caps, oblong, cylindric, incurved, 

 horizontal, lid mamillate. 



Marshes and ditches. April, May. 



Dioicous. 



562. H. giganteum, Schp. St. erect, thick, often 

 1 foot long, densely pinnate,* st. 1. patent, broadly 

 cordate-ovate, strongly nerved to often cuculiate apex, 

 cells linear, excavate, quadrate, and hyaline or rufous- 

 brown at basal angles ; br. 1. lingulate, narrow, terminal 

 ones twisted and subulate ; per. 1. oblong-lanceolate. 

 Caps, oblong-cylindrical, subincurved, horizontal, on. a 

 long seta. Annulus none, lid mamillate. 



Marshes. Summer. 



Hale Moss and Wybunbury Bog, &c. 



563. H. sarmentosum, Wahl. St. 1 inch or more, 

 procumbent, subpinnate, without radicles. Br. short, 

 cuspidate, young foliage green, the rest red or purplish. 

 L. much crowded, suberect, elliptic-oblong, scarcely 

 pointed, concave, entire, nerved almost to apex, which 

 is subcucuUate, areolae large, quadrate and pellucid at 

 basal angles. Caps, ovate-oblong, cernuous or hori- 

 zontal, lid mamillate. 



Wet alpine rocks. Summer. 



Var. /3. suBFLAvuM, Ferg. Scotland. 



564. H. cuspidatum, Linn. St. 2 — 6 inches, erect, 

 pinnate, terminal foliage cuspidate. L. spreading, 

 almost squarrose, when young erect, appressed, and 

 convolute, broadly ovate-oblong, obtuse, concave, en- 

 tire, nerveless or shortly 2-nerved, margins more or 

 less incurved at apex, cells enlarged and pellucid at 



