Gen. I. JUNGEEMANNIA, Linn.
1. Jungermannia p e r ig on ia lis (Hook. fil. et Tayl. Fl. Antarct. p. 33. pi. 62. f. 7). (T a b .
CLXXVIII. Fig. 1.)
H a b . Rocks near Cumming’s Head, Western Mountains, Archer.
PeriantUum tubulosum, elongatum, apice contracto plicato denticulato. Polia inmlucralia caulinis ambitu
oblongis sinu acuto acute bidentatis fere conformia, margiue dorsali integerrimis dentículo uno alterove instructis.
Ampliigastrium involúcrale linguæforme, 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 JiingermannicB foimd in tbe Antarctic regions in its dark stems, which,
as weU as the brown leaves, are rather glossy. The Jungemannia minuta mentioned in Fl. Antarct. p. 40, is
identical with J. ochropltylla of the same work.—P la t e CLXXVIII. Fig. 1 ; 1, portion of the stem, with leaves
and perianth ; 2, leaf, removed from the stem ; 3, involucral leaves aud stipule :—all magnified.
2. Jungermannia monodon (Hook. fil. et Tayl. Lond. Journ. Bot. 1844, p. 5 5 9 ; Gottsche, Lin-
deuberg, et Nees von Eseubeck, Synopsis Hepaticæ, p. 664; Mitten, in Fl. N. Zeal. pi. 94. f. 2).
H a b . Tasmania, Spence, Gunn.
3. Jongermaunia Tasmanica (Hook. fil. et Tayl.) ; caule cæspitoso adscendente ramoso, foliis
imbricatis patentibus oblongis margine utroque recurvo integerrimo, perianthio termiuali oblongo tumido
obtuso subincuxvo sursum obtuse quadriplicato, ore minute denticulato, foliis involucralibus binis digitato-
laciniatis perianthio adpressis.—J . revolvens, Hooh. fil. et Tayl. Lond. Jonrn. Bot. 1846, p. 275. J . Tas-
raanica, eorund. I .e .p . 274; G. L . et N . Syn. Hep.pp. 675 et 678. (T a b . CLXXVIII. Fig. 2.)
P Ia b . Amongst and creeping over a Peltigera, Circular Head, and with Mastigobryum Novæ-Hol-
landice, near Yorktown, Gunn. Brown’s Eiver GuUy, Oldfield.
Fus cO'Viridis . Caulis p oUicaris, v age ram o su s, r ep e n s a d s c en d en sv e . Folia o v a to -o b lo n g a , o b tu s a , in te rd um
re tu s a , m a rg iu ib u s recu rv is.
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.—P la t e CLXXVIII. Fig. 2 ; 1, portion of the stem, with
4. Ju ngermaania colorata (L. et Ldbg.).
H a b . Oq 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. Ju ngermaania marginata (Mitten); caule crecto ramoso rigido, ramulis sæpe flagelliformi-atte-
nuatis, foliis patentibus antice secundis ovalibus integerrimis apice obtusis rariusve retusis margine incrassato
e stratis duabus cellularum composito, amphigastriis ovatis bifidis. (T a b . CLXXVIII. Fig. 3.)
H a b . Arthur’s Lakes, Gunn. Brown’s River Gully, Oldfield.
Sordide fusco-viridis vel nigrescens. Caulis bipollicaris et altior, flexuosus, ramis sæpe gi-acilibus flagcliifor-
mihus commixtis. Incrassatio folionim margines quasi ab inflexione adglutioneque serieram duavuni cellularum ut
tertiam in margine extreme transverse imposita est. AmpUgaslria diametro cauli adccquantia.
A rigid species, with some resemblance to elongated states of J. scnlaris, but larger and with more oval leaves.
Its evidently margined leaves readily distinguish it from its allies.—P la t e CLXXVIII, Fig. 3 ; 1, portion of the
stem, with leaves and stipule ; 2, transverse section of the margin of leaf :—both, magnified.
6 . Jongermannia dentata (Raddi; G. L. et N. Syn. Hep. p. 143).
H a b . On a charred tree : Asbestos Hills, near Yorktown, G««». On rotten timber : Grass-tree Hill ;
and on charred wood, in damp places, J. B . H. Common on the hills, New Norfolk, etc., Oldfield, Archer.
These specimens, in colour and habit, as well as in the circumstance of their growing upon charred wood,
agree very nearly with that form of J. divaricata which was described by Dr. Taylor as J. exilifiora. When compared
liowever with that species, they are readily distinguished by the leaves having a certain braided appearance ;
the margms of the leaves are everywhere recurved ; at the base, on the outer side, they are sometimes spinuloso-
papillose, but the small teeth of the edges, from their dowuwai'd direction, often present the same appearance when
the papilla? are absent. These different states are aU found in European specimens. Tlie J. aquarrosula, Taylor,
from Swan River, is synonymous with J. divaricata. J. tubulata, Crypt. Antarct. t. 157. f. 6, differs in no way
from ordinary states of J. bicuspidata. J. phjsocaula, Crypt. Antarct. t. 156. f. 1, seems to be very nearly allied
to J. bicuspidata, but is more rigid ; it has however no resemblance to J. concinnata. J. longiscypha, Taylor,
from Swan River, is not different from J. setacea ; also J. aspei'i/olia, Taylor, from Madeira, is a slender form of
J. dentata.
7. Jungermannia pulchella (Hook. Muse. Exot. t. 94; G. L. et N. Syn. Hep. p. 120).
H a b . Tasmania, Oldjield.
Gen. I I . PLAGIOCHILA, Nees et Mont.
1. P la g io ch ila falcata (Hook. Muse. Exot. t. 8 9 ; G. L. et N. Syn. Hep. p. 649).
H a b . Tasmania, Gunn, Archer. Dense tufts, on rocks : Goat Hills ; and on rocks, in streams,
Kermandie Rivulet, South Huon, Oldfield.
The stems of these specimens are 3 inches or more in height ; the leaves erccto-patent and rather loosely disposed
; in the lower parts of the stems they are quite entire, but as they approach towards the apex they become
more and more denticulate.
2. P la g io ch ila b ise r ia lis (L. et Ldbg.; Lindenberg, Sp. Hep. p. 126. t. 26; G. L. et N. Syii.
Hep. pp. 53 et 652).
H a b . Macquarrie River, Hb, Taylor, On an old stump of Fagus Cunninghami, at an elevation of
2000 feet, Gunn.
3. Pla g io ch ila p u silla (Mont.; Lindenberg, Sp. Hepat. p. 164; G. L. et N. Syn. Hep. p. 53).
H a b . Tasmania, Hb. Montagne, et Nees ab Fsenbeck.
4. P la g io ch ila Mage llan ica (Lindenberg, Sp. Hep. Plagiochila, p. 164 ; G. L. ct N. Syn. Hep.
p. 53).—P. Liudenbergiana, Lehm. in Linnaa, iv. p . 367 ; Pug. p i. 3. p . 53 ; G. L . et N . Syn. Hep.
p . 59. P. sphalera, Hook. fil. et Tayl. Ciypt. Antarct. p . 121. t. 156. f , 8 . P . unciformis, eorund. l. c.
p . 119. t. 1 5 6 ./. 5 ; Syn. Hep. p . 653.
H a b . Acheron River, Gunn.
The Tasmanian specimens of this species are larger than any of those collected at Cape Horn, aud have all
their leaves entire ; iu every other respect they con-espond so nearly that they may be supposed to be an entireleaved
variety, similar to those observable in several allied species, as P. falcata and P. retrospeetans. The inflexion
of the dorsal margins of the leaves readily distinguishes P. Magellanica from its allies ; the leaves themselves vary
in being patulous or appressed, but then form is the same iu aU the plants described as above, and referred to this
species.
5. Pla g io ch ila re trospee tans (Nees ab E. ; Lindenberg, Sp. Hep. p. 123. t. 26 ; G. L. et N.
Syn. Hep. p. 52 et 650).—Plagiochila ophisthotona, Tayl. Lond. Journ. Bot. 1844, p . 577 ; G. L . et N.
Syn. Hep. p . 652.