HYPXEl. 125 



Wilson, either nestle in the axillae of the leaves or are attached 

 to their surface by radicles. Schimper refers it to H. calli- 

 chroum, Brid., asserting that Wilson's specimens transmitted 

 to him were dioicous. It should seem however that they are 

 rather pseudomonoicous. In specimens from the Highlands 

 I find, in the same pinna, the leaves two-nerved and quite 

 nerveless. 



74. H. cupressiforme, L. ; dioicous ; stem procumbent, 

 subpinnate ; leaves falcato-secund, elliptico-lanceolate, acumi- 

 nate, nearly entire, nerveless or two-nerved at the base ; peri- 

 chsetial leaves subpiliferous, erect ; sporangium subcylindrical, 

 curved, subcernuous; lid conical, rostellate or cuspidate. 

 Hook. % Wils. t. xxvii.; Eng. Bot. t. 1860, 1620.; (Plate 11, 

 fig. 4) ; Moug. % Nest. n. 229, 1228. 



On stones, trunks of trees, rocks, etc. Very common. Bear- 

 ing fruit in winter. 



Forming soft, pallid, or rarely dark-green or olivaceous 

 patches. Stem procumbent, branched, more or less regularly 

 pinnato-ramulose ; leaves falcato-secund, concave, more or 

 less broadly ovate or oval at the base, acuminate above, nerve- 

 less or faintly two-nerved ; fruitstalk even ; sporangium sub- 

 cylindrical, curved, generally more or less cernuous, rarely 

 suberect ; lid more or less pointed or even rostrate. 



One of the most variable of Mosses. Sometimes the stems 

 are inclined to be erect and assume the tints of species of the 

 same group as H. aduncum, sometimes the stem is not pin- 

 nate ; the direction of the leaves also varies, as also the size ; 

 occasionally the leaves are almost complanate. Schimper refers 

 to this H. resupinatum, Wils. (tab. xxvii.) ; Eng. Bot. 1. 1664, 

 a slender form, often confounded with Pylaisia polyantha on 

 account of its erect sporangium and scarcely falcate leaves. 



75. H. pratense, Koch; stem suberect, sparingly branched 



