608 Proceedings of the Royal Irish Academy. 



dioecious, aiitoecious, more rarely paroecious. Pericheetium apical, 

 or from the posterior face of the stem, next its side above the 

 axil of the leaves, as a proper branchlet, never from the axil of 

 the amphigastrinm. Colesule generally small, 5-plicate, and some- 

 times vringed or compressed, rarely round or densely plicate, 

 mouth often narrow and beak-shaped, rarely none. Setse short or 

 slender. Capsule minute, globose, mostly very thin and pellucid, 

 as if composed of few strata, generally cleft to the middle, valves 

 erect. Elaters 1- or 2-spired, adhering in pencil-like tufts to 

 the apex of the valves or to the interior face of the capsule. 

 Andrfficia lateral to the stem, like the perichsetia. Antheridia 

 two, or solitary, fixed in the axils of concave bracts, rarely in the 

 axils of leaves or perichsetial bracts." — Lindberg. 



Sub-tribe 1. FEULLAiiriE^. 



1. Fkullania, Eaddi. 



Jungermannia, Rupp. Fl. Jen. 1 ed., p. 346 (1718). Heimea, Neck. 

 Elem. Bot. 3, p. 338 (1790). Jungermannia, Hooker, Brit. 

 Jung. (1816). FruUania, Eaddi, in Mem. Soc. Modena, 18, p. 

 20, tab. 2 (1818). Salviata, B. Gray, in Gray's Nat. Arr. Brit. 

 PI. p. 687 (1821). Jubula, Dumort. Comm. Bot. p. 112 (1823). 

 Lejeunea, Corda, in Opiz, Beitr. 1, p. 652, n. 4 (1829). 



Leaves incubous, distichous, lower segment saccate. Colesule com- 

 pressed, trigonous, mouth constricted, mucronulate. Elaters 

 with single spires. 



a. JuBTTLOTYPiJS, Dumorticr. 



1. FruUania JIutchinsice (Kook.), l^ees. Autoecious. Stems casspitosc, 

 prostrate, from one to two inches long. Leaves unequally 2- 

 lobed, the lower lobe saccate, the upper ovate, spinulose-den- 

 tate at the margin. Amphigastria rounded at the base, acutely 

 bifid, segments dentate. Colesule obcordate, slightly trigonal. 

 Antheridia on short slender ramuli, proceeding from the inferior 

 face of the stem. 



Jungermannia HutchinsiEe, Hook. Brit. Junger., tab. 1 ; Engl. Bot. 

 tab. 2480. Salviata Hutchinsia3, B. Gr. in Gray's Arr. Br. PL 1, 

 p. 688. Jubula Hutchinsise, Dumort. Comm. p. 112; Syll. 

 Jung., p. 36 ; Hepat. Europ., p. 26. Erullania Hutclainsia?, 

 Nees, Europ. Leberm. 3, p. 240; G. L. et N. Synop. Hepat., 

 p. 426 ; Eabenhor. Hepat. Europ. exsic. n. 208, 477. 



Hab. On wet rocks near waterfalls. Bantry, Miss Hutchins. Killamey, 

 Cromaglaun, &c. ; caves near the sea, Dingle Bay, Kerry. Ballin- 

 hassig glen, and near Kinsale, Cork, Isaac Carroll, Esq. Fissures 

 of wet rocks by the lake near Lettcrfrack, Co. Galway (1874). 



