Hepatice, by W. Mitten.) FLORA OF TASMANIA. 221 
fere trilineari parce ramoso, foliis distichaceo-compressis, lateralibus patentibus late elliptico-spathulatis 
angulo apicali obtuso basi angustatis intermediis patentibus dimidio brevioribus subtrapezoideis obtusis, 
iis cauli parallelis mediis dorsalibus et ventralibus erectis appressis late obovatis apice rotundatis, omnibus, 
foliorum, nervo ad medium brevi-furcato evanido, marginibus superioribus crenulato-serratis, cellulis partis 
superioris circiter ly unc. diametro metientibus."— Mitten, in Journ. Linn. Soc. ined. (Tas. CLXXVII. 
Fig. 4.) 
Has. Cheshunt, Archer. 
Whole plant obscure, blackish-green. Allied to P. denticulatum and P. nigellum, but with its lateral leaves 
very much narrowed towards the base, and these, as well as the intermedial and medial, of a different form. The 
species of this genus, from the neglect in their descriptions of the very different forms of the leaves in the several 
series, are hardly intelligible. Mitten, l. c.—PLATE CLXXVII. Fig. 4; 1, portion of branch and leaves; 2, 3, and 
4, leaves :—all magnified. 
Gen. LXIV. DALTONIA, Hook. et Tayl. 
Peristomium duplex, Neckeroideum ; externum, dentes sedecim, angusti, subulati, trabeculati, humidi- 
tate reflexi; internum, cilia totidem similia, cum dentibus alternantia, membrana basilari fere carentia. 
Capsula erecta. Operculum conico-subulatum. Calyptra mitreformis, basi eleganter fimbriata. Flores- 
centia monoica vel synoica. 
l. Daltonia pusilla (Hook. fil. et Wils.); monoica, caule humili decumbente subsimplici, foliis 
remotiusculis patentibus plus minus secundis siccitate laxis suberispis anguste lanceolatis acuminatis plani- 
usculis inferne carinatis integerrimis marginatis evanidinerviis, seta brevi gracili apice scabriuscula, capsula 
inclinata elliptica basi attenuata leptoderma, peristomii dentibus ciliisgue longissimis angustissimis papil- 
latis. (Tas. CLXXVII. Fig. 5.) E 
Has. Near springs, on Mount Wellington (very scanty specimen), growing on dead twigs, with 
Hypnum aciculare. (Oldfield, 67.) 
About half the size of D. splachnoides, Hook. and Tayl.—Stem 2 lin. Leaves smaller, paler, and somewhat 
narrower; the areole rather smaller. Seta scarcely 2 lin. long, very slender. Peristome half as long as the capsule, 
or more, widely spreading and recurved when wet; teeth reddish-brown, distantly trabeculate. Calyptra fringed 
at the base.— Allied to D. angustifolia, Dz. and Molk., but that, as described, has a different peristome and larger 
capsule.—PLATE CLXXVII. Fig. 5; 1, branch and fruit; 2, leaf; 3, capsule; 4, calyptra :—all magnified. 
Nar. Orv. VI. HEPATICA. 
(Auctore Gul. Mitten, A.L.8.) 
« The Tasmanian Hepatice, of which 126 are here enumerated, present a few species which appear to 
be peculiar to the Island, the remainder being found in New Zealand and Fuegia. One-third of the spe- 
cies included in the Flora of New Zealand have not yet been found in Tasmania; of these some, as 
Plagiochila Stephensoniana, P. Arbuscula, P. gigantea, and Madotheca Stangeri, are ” large that they 
would scarcely have been overlooked if they were so generally distributed in Tasmania as they appear to 
be in the islands of New Zealand. The larger species of Lejeunia seem also to be absent, and Riccia has 
no representative. It can hardly be supposed that these are entirely wanting in Tasmania, but their ab- 
sence from the collections yet received shows that if present they are rare. As in the Flora of New Zea- 
of which nothing further is now known; 
land, there occur here also some species described by Dr. Taylor, 
his descriptions and remarks have therefore been inserted in their respective places in the arrangement, 
which is the same as that adopted in the “Flora of New Zealand.” 
VOL. II. 
JL 
