BY B. CAREINGTON, M.D., P.R.S.,E. AND W. H. PEARSON", ESQ. 7 



2 xcix. f , 2, in the shape of the underleaves, by which character 

 it may be easily recognised. 



Many of the perianths have a flap hanging from the suture, 

 giving it a pseudo-alate appearance. 



Description of PL IV. — Fig. 1, plants nat. size ; 2, portion 

 of stem X 16, antical view ; 3, portion of stem x 16. postical 

 view ; 4, portion of leaf x 290 ; 5, 6, 7, underleaves x 24 ; 

 8, bract x 16; 9, perianth x 16; 10, cross section of portion 

 of perianth x 85, showing the pseudo-wing character ; 11, 

 mouth of perianth, explanate, x 16. 



[Jtjngermania Bastovii n, sp.] 



Monoicous, cladocarpous, pale glaucous green ; stems slightly 

 branched, creeping, filiform, rigid ; branches lateral, leaves ap- 

 proximate, nearly transverse, subsecund, subquadrate, ovate, 

 convexo-conduplicate, divided half way down into two acute 

 spreading segments, sinus acute, margin entire ; exstipulate ; 

 involucre on short lateral branches ; bracts larger than the 

 leaves, notched at the base; perigonial leaves 4-6 pairs, turgid 

 at the base, monandrous. 



Monoicous, laxly creeping amongst other mosses and 

 hepatics, of a dull, pea-green colour, nearly white when dry. 

 Stems half an inch to an inch long, slightly branched, 

 flagelliferous, wiry, showing upon a cross section 10 to 12 

 cells in diam., cells of equal size, nucleate, cortical cells about 

 24 ; branches lateral, rooting at intervals up to apex, rootlets 

 white, short. Leaves loosely imbricated, alternate, patent at 

 an angle of 56°, insertion slightly oblique, sometimes trans- 

 verse, subsecund, roundish, oval, or subquadrate, subcondu- 

 plicate, scarcely carinate, divided to about the middle into 

 two equal lobes, sinus and segments acute, patulous ; cells 

 quadrate, nucleate, small, papillose, without trigones. 

 Underleaves none. Involucre on short lateral branches, 

 outer bracts larger than the leaves, similar in shape with 

 an additional postical tooth at the base ; bracteole oblong- 

 oval. Perianth (?) only a single, imperfect one observed. 

 This had a slightly irregular margin at mouth. Pistillidia 

 clustered, oblong, 5 or 6. Androecium on chief stem or 

 forming short lateral spikelets, 4 to 6 pairs of leaves, peri- 

 gonial leaves gibbous at base, monandrous ; antheridia shortly 

 stipitate, spherical. 



Measurements : Stems, from |in. to lin. long, "15 mm to 

 •175 mm diam., with leaves '5 mm to "6 mm diam. ; leaves, 

 •45 mm long x -4 mm broad ; seg., '2 mm long, '4 x -3 ; 

 seg., -2, -325 x -275 ; seg., -15 ; cells, 1-50 mm, -0125 x -02 

 mm, -02 X -0175, -02 x -02, -0225 x -02, -0225 x -02, ^025 X 



