230 FLORA OF TASMANIA. [Hepatice, by W. Mitten. 
those gathered by Mr. Gunn, but they are not obvious on all the stems, and are thus easily overlooked. The invo- 
lucral leaves scarcely differ in form from the cauline, but are concave, and enclose four or five pistils, seated on the 
dorsal side of the abrupt and slightly thickened apex of the stem itself; within the involucre there has been observed a 
small stipule-like leaflet, but not apparently representing the stipule, which, although present, has no part in the for- 
mation of the torus in the plants of this and allied genera.—PrATE CLXXIX. Fig. 4; 1, a portion of the stem, with 
leaves and stipule; 2, a stipule, removed from the stem ; 3, apex of the stem, with leaves; 4, the same, with front 
leaves removed to show the dorsal position of the pistils :—ad/ magnified. 
5. Gymnanthe diplophylla (Mitten). —Jungermannia diplophylla, Hook. fil. et Tayl. Lond. Journ. 
Bot. 1844, p. 377; Fl. Antarct. p. 40. pl. 64. f. 4. Gottschea diplophylla, Nees ab E.; G. L. et N. Syn. . 
Hep. p. 624. (TAB. CLXXIX. Fig. 5.) 
Has. Bogs: Brown’s River ; and wet ground: Kermandie Rivulet, Oldfield. Elliot Rivulet, Archer. 
Caulis in plantis fertilibus brevis, semiuncialis. Torus ex apice caulis arcuati descendens, brevis, eylindricus, vio- 
laceus, radicellis parvis obtectus. Folia superiora magis lacero-dentata. Amphigastria superiora caulinis conformia, 
usque ad medium fere tori protractis, ulteriora violacea. 
The fertile plants of this most curious species were gathered in New Zealand by Mr. Kerr, and thus is set at 
rest the before very doubtful place of the present and of G. erinacea (Jungérmannia), Hook. fil. et Tayl. Fl. Antarct. 
pl.161.f. 4. Indeed the whole appearance of the barren plants of both species is so different from that of G. saccata, 
that without fertile specimens their affinity with Gymnanthe could hardly have been expected. The torus appears to 
agree in all particulars with that of G. saccata, and on the under side, that is to say, on the side next to the stem, 
the amphigastria are continued, the lower one having the same violet colour as the torus itself, —PLATE CLXXIX. 
Fig. 5; 1, apex of the stem, with the leaves on the front side removed, showing the torus with the stipules on its 
inner side. 
6. Gymnanthe concinna (Mitten) ; caule repente ramoso, foliis imbricatis oblongo-ovatis concavis 
apice rotundatis sursum conniventibus vel parum explanatis, involucralibus majoribus conformibus vel apice 
retusis, toro . . . (Ta. CLXXIX. Fig. 6.) 
Has. Tasmania, Gunn, creeping over Jungermannia Tasmanica, Tayl. 
Pallide viridis. Caulis 3—8-linearis, hic illie radiculosus, apice fructifero descendente. Folia apicem versus sen- 
sim majora, involucralia convoluta. Torus juvenilis (apex caulis incrassatus) archegoniis 5—6 praeditus. 
Â very small species, of a very neat habit, and with somewhat the look of the stems of some states of the Euro- 
pean Jungermannia nana, Nees. The apex of the stem is slightly thickened, and curved downwards, and the invo- 
lucral leaves being directed upwards at right angles, give the stems of this and some alied species an abrupt appear- 
ance. The areolation is similar to that of G. Urvilleana. A few stems of apparently the same species have been 
picked from a specimen of Marchantia globosa, Bischoff, from the Cape of Good Hope. G. concinna is closely allied 
to G. lutescens, from the East Indies, and G. Bustillosii, Mont., from Peru, but is easily distinguished by the cha- 
racters above given.—PraATE CLXXIX. Fig. 6; 1,a portion of the stem, with leaf; 2, apex of the stem, with 
leaves ; 3, the same, with the leaves removed from the front side to show the pistils :—all magnified. 
7. Gymnanthe Drummondii (Mitten, in Fl. N. Zeal. p: 144, pl. 99. f, 8). 
Has. Bogs: Brown’s River, Oldfield. 
Gen. VIII. LEPIDOZIA, G. L. et N. 
l. Lepidozia microphylla (Hook. ; Ldbg. Sp. Hep. Lepidozia, p. 16. t. 2).—Jungermannia m: 
crophylla, Zoo£. Musc. Exot. t. 80. 
Has. Acheron River, Gunz. 
