HVPNACE^E.] 134 [Heterocladiwn. 



Dioicous; in small dense cushions, fragile, pale glaucous-green; 

 stem erect, irregularly branched, the branches simple julaceous, obtuse. 

 Leaves closely imbricated, roundish ovate, obtuse, concave, finely toothed 

 by projecting cell ends, sometimes with a short apiculus ; nerve none or 

 very short. Cells hexagono-rhomboid, nearly smooth. Perich. bracts 

 erect, lanceolate, acute, seta purple. Capsule erect, longish oval, pale 

 brown, lid conical, obtuse, teeth lanceolate-subulate, pale yellow, cilia 

 two, short. 



HAD. On rocks on the higher mountains, not common. 



Ben Lawers and Craig Chailleach ! ! Ingleborough (Nowell 1863) ! ! Teesdale (Borrer 

 1810). Canlochan (Stirton 1865)! Sedgwick, Westmoreland (Stabler 1869). Ben 

 Tigh, Argyll c. fr. (Peterson 1875). 



Yar. p. scabrifolia Lindb. Muse. Scand. 37. 



Plants very slender and resembling M. tenerrima. Leaves with a smal 

 apiculus, toothed at base, rough at back with longer papillae from the cell-angles. 



HAB.-Ben Lawers, creeping among other mosses (Monlagton, Murray, and Nicholson 1899) ! 

 Cra.g Chailleach (C JC ks 1900) ! ! Dixon in Journ. of Bot. 1900, p. 333. 



The variety has extremely slender stems, and is intermediate between this 

 es and the last ; it has also a close affinity to M. Carey ana SULLIV. 



13- HETEROCLADIUM Br. Sch. 



Bry. Eur. fasc. 4951 (1852). 



Slender mosses growing in dull green rigid tufts. Stem creeping 



ularly pinnate. Leaves dimorphous, the cauline erecto-patent or 



squarrose, ovate-acuminate, nerves none or obsolete, those of branches 



all, ovate, acute; cells of middle longish, the lateral quadrate 



ctmg as papilla. Capsule cernuous, ovate ; calyptra cucullate lid 



anvex-comc; teeth lanceolate-subulate, cilia 2-3 or none.-Der. 



different, *A.aos a branch. 



CLAVIS TO THE SPECIES. 

 Stem leaves squarrose, suddenly long-pointed. 



divergent, secund, short-pointed. heterot 



i. HETEROCLADimt SftTJARROSTTLTTM (Voit] Lindb. 

 n^^oL^,^^' ^ ' innate ' the 1-es 



of 



(T. CIX, C.) P ng ' cernuous > Hd conical. 



