■47 S HEPATIC^. 



slight!}' undulate, margin of lobes raised, nerveless, without pores, 

 fleshy, membranaceous, semi-pellucid, antical layer of cells clearly 

 defined, 4-, 5- and G-angled, 'oblong, walls rather thick, postical layer 

 green, 4-, 5- and 6-angled, clearly defined, about twice the size of 

 the antical layer; postical side of frond clothed with numerous 

 scales ; radiculose, rootlets very numerous proceeding chiefly from 

 the midrib, long, fasciculate, simple, white. Scyphi none. Female 

 receptacle convex, pedunculate, at first surrounded by linear 

 scales, all recurved ; peduncle long, succulent, thick, semi-pellucid, 

 greenish, flexuose, bi-canaliculate, canals with rhizoids like root- 

 lets. Calyptra ruptured, leaving the remains at the base of the 

 pedicel. Capsule stipitate, globose, slightly verruculose, dividing 

 into 4, 6 or 8 unequal valves. Spores reddish-brown, angular- 

 rotundate, verruculose. Elaters elongate, dark reddish-brown, 

 delicate, spiral fibres closely twisted. ]\Iale receptacle raised 

 above the level of the frond ; peduncle very short, succulent, 

 thick, greenish below, brov^^nish above, striate, bi-canaliculate, 

 l)eset with numerous hair-like scales ; peltate, depressed in the 

 centre, fleshy ; antheridia oval, hyaline. 



Dimensions. — Fronds 2 to 5 inches long, |- to 1 inch wide, 

 near the margin "3 mm. thick, middle '9 mm. thick, scales "2 mm. 

 long, spores '025 mm. diam., elaters '8 mm. long x "01 mm. 

 broad. 



Hab. — On wet dripping rocks in shady places. Very rare, 

 except in the South of Ireland, where in some localities it is 

 abundant. 



1. Ilfracombe, Devonshire, IF. Cur now. 2. Fairlight Glen, 

 Hastings, Sussex, I'j. J/. Holmes, Rev. E. N. BloonifebL 



I. " Sheltered, shady, rocky recesses, where water is constantly 

 trickling over, or otherv/ise very moist. Blackwater Bridge, near 

 Dunkerron, Dr. Tcujlor (1820). Tore Waterfall, near Killarney. 

 Maohanabo Glen, near Fermoyle, Co. Kerry, W. Wilmn, Esq. 

 (1829), who first published the plant as a native of the British 

 Isles, in English Flora (1833). Ballinahassig Grlen, near Cork, 

 Fl. Cork. Dunscombe's Wood, /. Carroll. Altadore Glen, near 

 Delgauy, Co. Wicklow, The Bi(jht lion. Lord Gou(j]i. We have 



