MNIUM. 345 



HAB. Rocks and shady banks ; frequent. Fr. spring. 



Easily distinguished from the two preceding species, when in fruit, by the long 

 beak of the lid. When barren the more oblong, obtuse leaves will generally 

 distinguish it, besides which the cells are larger and the serratures more obtuse than in 

 M. cuspidatum ; but as observed under M. affine it is sometimes, in the barren state, 

 more difficult to separate from that species. Even without the lid, however, it may 

 Teadily be known by the synoicous inflorescence, when flowers are present. It often 

 grows with M. punctatum, which is easily known however by its larger, wider leaves 

 of firmer texture and much less altered in drying, and entire. 



4. Mnium undulatum L. (Tab. XLVI. E.). 



In large loose patches, bright pale green or darker. Stems 

 1-2 inches high, erect ; sterile branches longer, 3-4 inches, erect, 

 somewhat arcuate and often flagelliform, dense-leaved ; stems 

 branched from the coma, and stoloniferous at base. Stem-leaves 

 gradually larger upwards, the comal long (often % an inch), 

 Ungulate, obtuse and round at apex, with a small apiculus chiefly 

 formed by the slightly excurrent nerve ; narrowed at base and 

 decurrent, strongly transversely undulate; crisped when dry; 

 leaves of the sterile shoots similar. Nerve strong, slightly 

 excurrent ; margin with a narrower border than in the three 

 preceding species, spinosely serrate from the base with close, 

 acute teeth in a single row. Cells small, about 75 /* in diameter, 

 transversely elliptical-hexagonal, somewhat seriate. Capsules 

 aggregated, 2-10 in one perichsetium, seta orange, paler above ; 

 capsule oval-elliptic, sub-pendulous, shining, pale reddish brown 

 with bright red mouth and lid ; calyptra fugacious ; lid conical, 

 obtuse or obtusely apiculate ; peristome pale. Dioicous. Male 

 flower discoid. 



Hab. Shady woods. Abundant. Fruit rare, spring. 



One of our finest mosses, especially when the fruit is produced ; the numerous 

 setae springing from the terminal rosette of leaves, with the brightly coloured drooping 

 capsules, render it especially beautiful. It can hardly be confused with any other 

 moss ; Catharinea undulata is the one which most resembles it, but is known at once 

 by the more tapering, usually acute leaves, with lamellae on the face of the nerve. 



5. Mnium hornum L. (Tab. XLVI. G.). 



Robust, in dense tufts, 1-2 inches high, dark green, the young 

 shoots pale green. Stems erect, unbranched ; lowest leaves 

 minute, upper gradually increasing in size, comal large, forming 

 a terminal rosette, i|-2 lines long, oblong-lanceolate or narrowly 

 elliptic-lanceolate, more or less acute, with a sharp apiculus, very 

 slightly decurrent, erecto-patent or spreading, when dry erect, 

 slightly twisted, but hardly crisped or contorted. Sterile shoots 



