€68 Proceedings of the Royal Irish Academy. 



latter variety grows in the water, in close balls of fronds, three 

 or four inches in diameter. Variety ambrosioides, Nees, Killar- 

 ney, Dr. Carrington. 



2. Riccardia palmata (Hedw.), Carruth., Lindb. Dioecious. Stems 



short, rather crowded, and free at apex, palmately cut, segments 

 linear, and frequently tapering to a point or slightly emarginate. 

 Involucral bracts small. Calyptra small, and densely verrucose. 



Jungermannia palmata, Hedw. Theor. Gen. 1 ed., p. 87, tab. 18, figs. 

 93, 95 ; et tab. 19, figs. 96-98 ; Schmid. Icon. PI. 3, p. 213-216 

 (excl. synon.); Ekart, Svnop. Germ., tab. 13, fig. 115 ; Fl. Dan. 5. 

 fasc. 15, tab. 898, fig. 3; Sturm, Deutschl. Fl. 2, fasc. 26 et 21, 

 tab. 35. Aneura palmata, Dumort. Comm. Bot. p. 115; Syll. Jung., 

 p. 86, et Hepat. Europ., p. 143 ; Lindberg, Manipulus Musci. 

 secundus, Helsingfors (1874). 



Hab. On the putrid trunks of old trees, at Cromaglaun, Kerry ; 

 Altadore Glen, Wicklow. Tore Mountain, and Eagle's j^est, Kil- 

 larney. Dr. Carrington. Abundant on a small island off Bally- 

 nakill Harbour, Co. Galway. 



3. Riccardia pingim{Jjuni.),'S>.(jir. Dioecious. Eronds procumbent, 



one or two inches long, fleshy, linear-oblong, simple or slightly 



lobed, margins sinuate. Fruit rising from under the margin. ; 



Calyptra hemispherical, smooth. Capsule brownish and furrowed. | 

 Jungermannia pinguis, Linn. Sp. Plant., p. 1602; Schmidel, Icon. 



p. 136, tab. 35 ; Engl. Bot., t. 185 ; Hook. Brit. Jung., t. 46; 



Ekart, Synop. Jung., p. 62, tab. 7, fig. 51 ; Taylor, in El. Hib., 



p. 57. Roemeria pinguis, Eaddi, in Mem. Modena, 18, p. 48. 



Aneura pinguis, Dumort. Comm. Bot., p. 115 ; Syll. Jung., p. 86, 



tab. 2; et Hepat. Europ., p. 143 ; Nces, Europ. Leberm., 3, p. 427; 



G. L. et N. Synop. Hep., p. 493 ; Cooke, Brit. Jung., p. 23, fig. 



174; Eabenhor. Hep. Europ. exsic. n. 41, 103, 436. 

 Hab. Damp ravines, sides of rivulets, and among wet heath. I^ot 



unfrequent in the Killarney district, Kerry. On wet sand at Ma- 



lahide, Dublin ; and at Lough Bray, "Wicklow. 



4. A. latifrons, Lindberg. " Autoica, rarissime paroica, major, pel- 



lucida; caulis longus et latus, dissolutus in ramos latos, cervicorni- 

 formes, plus minusve oblongo-cuneatos, obtusissimos et emargina- 

 tos, plano-convexos, vix umquam gonidia antice gerentes ; cel- 

 lulse magnse, oblongo-rhombese, baud incrassatae ; bracteae peri- 

 cha3tiates paucsebus ; calyptra magna et minus verrucosa ; andrce- 

 cium anguste oblongum, fere semper ad latus perichaetii affixum." 

 — Lindberg. 

 Jungermannia multifida, Schmid. Icon. PI. 3, pp. 213-216, excl. 

 synon. et pp. (1797); Hook. Brit. Jung. p. 19, n. 75, pp. (1816). 

 Aneura palmata, a major, Nees, Europ. Leber. 3, p. 459 ; G. L. 

 et N. Synop. Hepat. p. 498 ; Gottsche, in El. Dan. 16, fasc. 4, p. 21, 



