244 TASMANIAN HEPATICiE. 



15. MARSVVIDIUM, Mitten. 



Perianth, a descending fleshy bag. 

 Fiuit lateral. 



Stems erect or ascending, stipules 0. 



1, M. Cevilleana, Gymnanthe, Tayl. in Fl. Antarct., 153.. 

 Ehizome creeping. Stems tufted, i-2in. high, erects 

 tips nodding. Leaves spreading or appressed and 

 imbricate, nearly round, with an indistinct notch or 

 ■with one or two short teeth at their tops. Involucre 

 attached to the lower parts of the stem by its side, 

 rooting. Capsule on a long stalk, ovoid. Plagiochila 

 Vrvilleana, Mont, in Voy. Pole Sud., t. 16. Jung, 

 abreviata, Hook. f. and Tayl. in Lend. Jour. Bot., 

 1844, 374. Syn. Hep. 647 {Plagiochila). 



Tasmania, Gunn, Hooker, Archer. (New Zealand, 

 Lord Auckland's Group.) 



16. GYMNOMITEIUM, Gorda. 

 Perianth, 0, 

 Stems very slender or capillary. Leaves vertical, distichous, 

 fiat or concave, entire or 2-lobed. Stipules or very 

 inconspicuous. Emit terminal. Involucral leaves, 2-4, 

 convolute, eniarginate. Perianth 0. Oalyptra short. Cap- 

 sule globose on a slender fruit stalk ; elaters with 2 spiral 

 fibres. Antheridia axillary, obovate. 



1. G. coNCiNNATUM, Govda. — Jungei-mann%a,'F\. N.Z. ii., 128. 



Stem erect, short ; branches straight, thickened, ob- 

 tuse and compressed at the apex. Leaves most densely 

 imbricate, ovate, 2-fid, with a narrow membranous 

 border. Stipules 0. Hook. Brit. Jung. t. 3. PI. xviii. 

 Densely matted, pale yellowish brown. Small. Sum- 

 mit of Mount Wellington, B. A. B. (ISTew Zealand, 

 Europe, Fuegia). 



2. Gymnomithtjim eeosa, Gesia erosa; Garret Pear. Monoi- 



cous, loosely caespitose, pale olive green, rhizomatous, 

 creeping, sparingly branched, filiform, fertile stems 

 erect, clavate, leaves very closely imbricate, aj)pressed, 

 erect, ovate or roundish-ovate, entire refuse or slightly 

 notched, margin hyaline, irregularly erose, crenulate j 

 cells minute, guttulate ; bracts broadly ovate to car- 

 date-ovate, bidentate, sinus acute, inner bracts 

 3-lobate, dentate. PI. xii. 



Mount Wellington, E.A.B. 



