170 



SYNOPSIS OP BKITISH MOSSES. 



Tribe xx. MNiACEiE. 



Fam. 1. Mniae. 

 76. MNIUM, Dill. 

 Section 1. Branches stoloniferous, creeping or ascend- 

 ing from a subterraneous hose, 

 a. Margin thickened, simply serrate. 



379. M. euspidatum, Hedw. St. ^ — 1 inchj tufted, 

 erect, radiculose, barren stoots procumbent. L. lower 

 ovate or obovate, scattered, upper ovate-lanceolate, 

 longer and narrower, all acuminate, with simply serrate 

 margins, nerved nearly or quite to apex. Caps, ovate, 

 inclined or pendulous, lid convex, obtuse. Syuoicous. 



Shady rocks and walls. March, April. 



380. M. affine, Bland. St. 1 — 3 inches, simple, erect, 

 radiculose, barren shoots procumbent. L. lower oval- 

 lanceolate, decurrent, scattered, upper much larger, 

 crowded, oblong-elliptic, pointed, border narrow, sim- 

 ply spinuloso-serrate, nerved nearly or quite to apex, 

 those of barren stems roundish, two-ranked. Caps, 

 ovate-oblong, pendulous, lid convex, pointed. Dioicous. 



Shady woods, banks, walls. April, May. 



Var. /3. ELATUM. Stem and seta longer. Marshy 

 places. 



Var. 7. EDGICCM. Sterile shoots, erect, shorter. L. 

 shorter, concave, obtusely serrate. 



381. M. undulatum, Hedw. St. 1 — 3 inches, decum- 

 bent at base, sometimes branched, stolons with large 

 leaves, and pendulous at apex. L. oval-oblong or 

 ligulate, upper very long, all undulate, decurrent, and 

 himply serrate, nerved generally to apex. Caps, gene- 

 rally several together, oval or oblong, pendulous, lid 

 convex, pointed. Dioicous. 



