■650 Proceedings of the Royal Irish Academy. 



Sab. Bantry, Miss Hutcliiiis. Glengariff, Dr. Carrington. Brandon, 

 Kerry ; Benbulben, Sligo ; Gleniff, Leitrim. 



11. Jungerma7i)iia{L.) IIornschuchiana,'Sees. Stems subsimple, diffuse. 

 Leaves suborbiculate, bidentate, sinus shallo"vr, lobes rather 

 acute. Ampbigastria bifid, divisions lanceolate, ciliate-dentate 

 at base. Colesule long, cylindrical, mouth acute, gradually ap- 

 proacbing to triangular. 



Jungermannia Hornscbucbiana, Xees, Europ. Leberm. 2, p. 153; G. 

 L. et i!T. Synop. Hepat. p. 101 ; Husnot, Hepat. Grail, n. 32. 



JIab. Wet places in subalpine parts of the country. At Cromaglaun, 

 Co. Kerry, and among rocks near Tore Mountain, July, 1869 ; 

 stream near Woodenbridge, Co. WickloTV. This plant is rather 

 larger than most of those in same section, and might be easily 

 passed over for J. (A.) riparia, both in a fresh and diied state. It is 

 only when the peculiarly notched sub-vertical leaves with their 

 ampbigastria are examined, that its distinguishing characters are 

 observed. Dr. Lindberg considers J. Hornscbucbiana, J. Bantri- 

 ensis, and J. Miilleri forms of one species. 



12. Jungermannia (Z.) Orcadensis, Hook. Stems erect. Leaves closely 

 imbricated, erecto-patent, incumbent, appressed, cordate-ovate, 

 margins recurved, obtusely emarginate at apes. 



Jungermannia Orcadensis, Hook. Brit. Jung. t. 71 ; Lindenberg, Syn. 

 Hep. p. 74 ; Xees, Eur. Leberm. 2, p. 35 ; Gr. L. et N. Synop. 

 Hep. p. 107 ; Gottsche et Rabenhor. Hep. Eur. exsic. n. 40, 399, 

 400 ; De jSTotar. Prim. Hep. Ital. p. 32. Mesophylla Orcadensis, 

 Dumort. Syll. Jung. p. 80 ; Hepat. Europ. p. 130. 



Hab. Among the larger mosses and Hepaticae in subalpine parts of 

 the country, but very rare in Ireland. Brandon, Co. Kerry. 

 " Connor Hill, among Herberta adunca, Dr. Lindberg (1873)." 



13. Jungermannia (Z.) bariata, Schi'eber. Stems ascending, slightly 



branched. Leaves subquadrate, 3-5 cleft. Ampbigastria acutely 

 bifid, and laciniated. Colesule ovate, contracted at the mouth, and 

 toothed. Antheridia in the axils of perigonial leaves, round, 

 greyish, and slightly reticulated. 



Jungermannia barbata, Schreber, Spicil. Lips. p. 107 ; Schmidel, 

 Icones, p. 187; Hook. Brit. Jung. n. 70; Dumort. Syll. Jung, 

 p. 58; HepaticEe Europae, p. 72 (1874). J. quinquidentata, 

 Huds. Angl. Fl. p. 511; Schwaegr. Prodr. Hepat. p. 29 ; Sm. 

 Engl. Bot. t. 2547 ; Lindenb. Svnop. Hepat. p. 45 ; Ekart, Syn. 

 n. 47, tab. 5, fig. 41 ; De Xot. Prim. Hep. Ital. p. 22. Lophozia 

 barbata, Dum. Eev. Jung. p. 17 ; Cogn. Hepat. Belg. p. 31. 



Hab. Among rocks, and on heathy banks. This plant is of general 

 occurrence in Ireland, from the northern to the southern counties, 

 and fi-om east to west; but most abundant in the north, especially 

 in counties Antrim and Donecal. 



