Jungermannia.] HEPATIC^E. o/ 



Horn for the locality. The maturity is not so forward as to show cap- 

 sules protruded out of the calyces, yet whether this ever takes place 

 may be doubted, as the capsules were so ripe as to show two pedicel- 

 lated bundles of spiral filaments on each valve, standing nearly erect ; 

 the seeds brown arigulato-subrotund, unconnected by any fluid matter, 

 and hence readily separating and falling out ; the spiral filaments long 

 much twisted. Upon careful examination I found the capsule had 

 only two valves or rather lips at the summit, and was quite entire 

 below without any mark of a suture. Thus this plant seems to pro- 

 pose pretensions to a separation from Jungermannia, yet Monoclea, 

 which would approximate it in our artificial systems, would be as far 

 from allowing its alliance, nearly as the frondose Jungermannia are 

 separated from thefoliaceous. 



6. J. pinguis, LINN. Frond lineari-oblong, procumbent, 

 carnose, plane above, tumid beneath, irregularly branched, 

 the margins sinuate ; the fruit from under the margin ; calyptra 

 exserted, oblongo-cylindraceous, smooth. Linn. sp. pi. p. 1602. 

 Hook. Br. Jung. t. 46. 



In very wet situations ; common. A variety at Cromaglown, near 

 Killarney, growing among the tops of the tufts of Dicranum Jiez- 

 uosum, was linear, of a very pale light green, and had a very evident 

 nerve to the frond. 



7. J. multifida, LINN. Frond linear, nerveless, carnose, flat- 

 tish, somewhat pinnate, fruit marginal, calyptra exserted, ob- 

 longo-cylindraceous, tuberculated. Linn. sp. pi. p. 1602. Hook. 

 Br. Jung. t. 45. 



On wet spots, among grass, heath, &c. ; common. Foreign speci- 

 mens of J. palmata, Hedw. quite accord with a variety of our plant 

 in the adscendent and palmate fronds. 



8. J. Lyelliij HOOK. Frond oblongo-linear, subdichotomous, 

 nerved ; calyx surrounded by a cuticular elevation of the frond, 

 cylindrical, subplicate. Hook. Br. Jung. t. 77. and J. hibernica t.78. 



In boggy spots ; rare. Near Bantry, Miss Hutchins, At Lough 

 Bray, near Dublin. Woods at Killarney. 



2. Foliaceous. 



The following sections are adopted from Dr. Hooker's excellent 

 arrangement in his English Flora. 



A. STEMS WITHOUT STIPULES. 

 * Leaves undivided. 



9. J. asplenioides, LINN. Leaves obovato-rotundate, ciliato- 

 dentate, somewhat recurved ; fruit terminal and lateral ; calyx 

 oblong, compressed, oblique, the mouth truncated, ciliated. 

 Linn. sp. pi. p. 1597. Hook. Br. Jung. t. 13. 



Among mosses on banks ; common. A large and handsome spe- 

 cies, acquiring six or seven inches in length. The leaves have their 

 edges recurved towardssthe base, where they are about to embrace the 

 stem, and from that all along the anterior edge. 



G 



