222 FLORA OF TASMANIA. [Hepatice, by W. Mitten. 
Gen. I. JUNGERMANNIA, Zinn. 
1. Jungermannia perigonialis (Hook. fil. et Tayl. Fl. Antarct. p. 33. pl. 62. f. 7). (Tas. 
CLXXVIII. Fig. 1.) 
Has. Rocks near Cummings Head, Western Mountains, Archer. 
Perianthium tubulosum, elongatum, apice contracto plicato denticulato. Folia involucralia caulinis ambitu 
oblongis sinu acuto acute bidentatis fere conformia, margine dorsali integerrimis dentieulo uno alterove instructis. 
Amphigastrium involucrale lingueeforme, obtusum retusumve. 
The figure before given of this small species represents only the male plant with perigonial leaves. It seems 
to differ from all the other small bidentate Jungermannie found in the Antarctic regions in its dark stems, which, 
as well as the brown leaves, are rather glossy. The Jungermannia minuta mentioned in Fl. Antarct. p. 40, is 
identical with J. ochrophylla of the same work.—PraATE CLXXVIII. Fig. 1; 1, portion of the stem, with leaves 
and perianth ; 2, leaf, removed from the stem; 3, involucral leaves and stipule :—all magnified. 
2. Jungermannia monodon (Hook. fil. et Tayl. Lond. Journ. Bot. 1844, p. 559; Gottsche, Lin- 
denberg, et Nees von Esenbeck, Synopsis Hepatice, p. 664; Mitten, in Fl. N. Zeal. pl. 94. f. 2). 
Has. Tasmania, Spence, Gunn. 
3. Jungermannia Tasmanica (Hook. fil. et Tayl) ; caule cespitoso adscendente ramoso, foliis 
imbricatis patentibus oblongis margine utroque recurvo integerrimo, perianthio terminali oblongo tumido 
obtuso subincurvo sursum obtuse quadriplicato, ore minute denticulato, foliis involucralibus binis digitato- 
laciniatis perianthio adpressis.—J. revolvens, Hook. fil. et Tayl. Lond. Journ. Bot. 1846, p. 275. J. Tas- 
manica, eorund. l.c. p. 274; G. L. et N. Syn. Hep. pp. 675 et 678. (Tas. CLXXVIII. Fig. 2.) 
Has. Amongst and creeping over a Pe//igera, Circular Head, and with Mastigobryum Nove- Hol- 
landie, near Yorktown, Gunn. Brown's River Gully, Oldfield. 
Fusco-viridis. Caulis pollicaris, vage ramosus, repens adscendensve. Folia ovato-oblonga, obtusa, interdum 
retusa, marginibus recurvis. 
J. elongella, Taylor, which is probably the same as the East Indian J. orbicularis, appears to have no character 
whereby it can be distinguished from this species.—PraATE CLXXVIII. Fig. 2; 1, portion of the stem, with 
leaves :—magnified, 
4. Jungermannia colorata (L. et Ldbg.). 
Has. On a stunted Fagus, at an elevation of 2000 feet. St. Patrick's River, Gunn. On rocks: 
Goat Hills, New Norfolk ; Grass-tree Hill, and Hospital Bay, South Huon, Oldfield; gathered also by Mr. 
Archer. 
‚5. Jungermannia marginata (Mitten); caule erecto ramoso rigido, ramulis seepe flagelliformi-atte- 
nuatis, foliis patentibus antice secundis ovalibus integerrimis apice obtusis rariusve retusis margine incras- 
sato e stratis duabus cellularum composito, amphigastriis ovatis bifidis. (Tas. CLXXVIII. Fig. 3.) 
Haz. Arthur's Lakes, Guan. Brown's River Gully, Oldfield. 
Sordide fusco-viridis vel nigrescens. Caulis bipollicaris et altior, flexuosus, ramis sepe gracilibus flagellifor- 
mibus commixtis. Incrassatio foliorum margines quasi ab inflexione adglutioneque serierum duarum cellularum ut 
tertiam in margine extremo transverse imposita est. Amphigastria diametro cauli adeequantia. 
A rigid species, with some resemblance to elongated states of J. scalaris, but larger and with more oval leaves. 
Its evidently margined leaves readily distinguish it from its allies. —PLare CLXXVIII. Fig. 3; 1, portion of the 
stem, with leaves and stipule; 2, transverse section of the margin of leaf :—both magnified. 
6. Jungermannia dentata (Raddi; G. L. et N. Syn. Hep. p. 143). 
