100 * HANDBOOK 01? BRITISH MOSSES. 



strong, reaching to or nearly to the tip ; cells narrow, except 

 at the slightly reflexed base ; fruitstalk even, 1 \ inch high ; 

 sporangium subcylindrical, curved, cernuous ; lid conical, 

 acute. 



In the figure in ' Bryologia Britannica' the leaves are re- 

 presented as strongly serrated above, which neither accords 

 ■with the description nor with Spruce's specimens. Even be- 

 low, the serratures are very obscure. 



** Leaves acute, mostly squarrose, shortly nerved or nerveless (oc- 

 casionally in certain leaves, as in H. chrysophyllum, there is 

 a longer nerve; in H. polygamum there is a long nerve). 



38. H. Halleri, L. jun. ; stem creeping, pinnate; branches 

 short, erect; leaves closely imbricated, spreading, squarrose, 

 broadly ovate, acuminate, serrated, obscurely two-nerved at 

 the base ; fruitstalk even ; sporangium oblong, curved, cer- 

 nuous ; lid conical. — Hook. &; Wils. t. xxxv. ; Grev. Sc. Crypt. 

 Fl. t. 174. ; (Moug. # Nest. n. 626.) 



On alpine rocks, as Ben Lawers ; said also to be found in 

 Herefordshire. Bearing fruit from autumn to spring. 



Monoicous ; forming circular patches, which are said to be 

 of a glaucous hue when growing but of a golden-brown when 

 dry, pinnate ; the branches erect, short, and nearly level ; 

 leaves densely imbricated, their tips recurved, broadly ovate 

 at the base, acuminate above, serrated, with two short obscure 

 nerves or sometimes nerveless ; margin reflexed at the base ; 

 cells narrow, but not vermiform ; fruitstalk even, about 

 half an inch high ; sporangium cylindrical, curved, cernuous ; 

 lid conical, with a central rather obtuse tip. 



A small but very pretty species, allied to H. pohjmorphum, 

 but at once distinguished by the strongly recurved leaves. 



39. H. polymorphum, Hedw. ; stem procumbent, scarcely 



