HYPNEI. 85 



This appears to be a southern Moss, and though scarcely 

 more than an inch high in British specimens, attaining, iu 

 the south of Europe, a much larger size. It resembles some- 

 what Hypnum purum in its pale, inflated leaves, but differs 

 notably in its rough fruitstalk. I find the leaves exactly as 

 represented in Sowerby's figure, and not bristle-tipped. Oc- 

 casionally they are striate, and the margin slightly reflexed, in 

 Wilson's Welsh specimens. 



{; Lid rostrate. 

 8. EURHTNCHIUM, ScJiimp* 



14. H. crassinervium, Tayl. ; stem creeping; branches 

 short, erect, simple ; leaves spreading, ovate, concave, with a 

 broadly reflected margin, suddenly acuminate, minutely ser- 

 rate ; nerve strong below, reaching more than halfway ; fruit- 

 stalk rough ; sporangium ovate, cernuous ; lid rostrate. 

 Hook. Hils. t. Iv. ; Eng. Bot. t. 2706. ; (Moug. Nest. n. 

 1227.) 



On limestone rocks in shady places. South of Ireland, 

 Wales, and Yorkshire. Found also in southern Europe. 

 Bearing fruit in early spring. 



Dioicous ; forming flat, silky, emerald-green tufts. Stem 

 procumbent, with erect, simple, sometimes fasciculate, short 

 branches ; leaves glossy when dry, imbricated, pointing every 

 way, patent, very concave with a broad reflexed margin, ovate, 

 suddenly acuminate, the tip sometimes recurved, minutely 

 serrate, especially above ; nerve reaching scarcely more than 

 halfway, strong below, much attenuated above; cells narrow; 

 fruitstalk very rough ; sporangium ovate, cernuous, scarcely 

 arcuate ; lid with a long, slender beak. 



* Distinguished from Brachythecium, as the name implies, by the beaked 

 lid ; and from Rhyncostegiurn by the looser reticulations, in which the primor- 

 dial cell is distinctly visible. 



