musci. (mosses.) 647 



49. MSiUM, Br. & Sch. (Tab. if.) 



Calyptra small, euculliform, fugacious. Operculum convex at the base, apic- 

 ulate or rostellate. Capsule oval or oblong, not pyriform, mostly pendulous, 

 long-pedicellate, annulate. Peristome as in Bryum. Inflorescence dioecious or 

 hermaphrodite: male flower with clavate paraphyses. — Nearly allied to the 

 preceding genus, its species however larger and more showy, conspicuous foi 

 their broad, smooth, glossy leaves, with a spinuTose-serrated thickened border, 

 a percurrent costa, and large roundish-hexagonal areolae ; stems innovating from 

 near their base, stoloniferous ; growing on the ground or on rocks in shady situ- 

 ations. (Mviov, an ancient name for Moss.) 



* Inflorescence dioecious : male flower terminal, discoid. 



1. I?I. affaaae, Bland. Stems radiculose, l'-3' high ; upper leaves large, 

 elliptic-oblong or ligulate-obovate, crowded, spreading, undulated or crisped 

 when dry, their thickened border simply spinulose-serrate; leaves., of the pro- 

 cumbent or arched shoots roundish, 2-ranked ; capsule oblong, large ; opercu- 

 lum apiculate ; pedicels often 2-4 from the same pericheeth. — On the ground, 

 shaded banks in woods : frequent. (Eu.) 



2. M. lldraiuill, Hedw. Stems and barren shoots erect, l'-3' high; 

 leaves erect-patent, narrowly lanceolate, their thickened border doubly spinulose- 

 serrate ; capsule oblong, tapering into the pedicel, horizontal ; operculum apicu- 

 late. — White Mountains of New Hampshire, Oakes. (Eu.) 



3. ITI. ortlaoahytaclaiaaia, Brid. Stems simple, l'-U' high; upper 

 leaves ovate-lanceolate, subspatulate, the border as in the last species ; areola? 

 unusually small and opaque for the genus ; capsule horizontal, oblong, slightly 

 incurved ; operculum conic-rostellate. — Wet pine-woods, near Montreal, Can- 

 ada East. (Eu.) 



4. M. stellaa'e, Hedw. Stems closely csespitose, l'-2' high; leaves 

 oval-oblong, inclining to spatulate, without a thickened border, strongly serrate 

 above, very brittle when dry ; areolae roundish, rather small ; capsule oblong, 

 horizontal, slightly incurved; operculum simply hemispherical. — Margins of 

 woodland brooks: fruit rare. —Foliage dark green with an indigo tinge, and 

 acid to the taste. (Eu.) 



5. M. puaactatuail, Hedw. Stems £'-4' high, radiculose ; leaves large, 

 spreading, roundish-obovate, narrowed at the base, scarcely pointed, with a thick- 

 ened firm border, not serrate ; capsule rather pendulous, oval ; operculum conic- 

 rostellate. —Wet places, on the ground, Alleghany Mountains. — Foliage with 

 a reddish tinge. (Eu.) 



# * Inflorescence hermaphrodite. 



6. M. scrrntum, Brid. Stems ±'-1' high, loosely csespitose ; leaves 

 ovate-lanceolate, the thickened border doubly spinulose-dcntate ; capsule nearly 

 horizontal, oval, gradually tapering into the pedicel; operculum short-rostel- 

 late. — Margins of rivulets, in woods. — Among the smallest species. (Eu.) 



7. 31. DraiBBBJiadiadai, Br. & Sch. Densely csespitose ; stems about 1' 

 high ; leaves erect from an oblong narrow base, broad-ovate, shortly acuminate, 

 scarcely crisped when dry, with a narrow, thickened, and simply spinulose-den- 



