McArdle — On the Hepaticce of the Sill of Hoivth. Ill 



the last list published by the late Dr. D. Moore in 19,1 W-: — 

 Cephalozia denudata (N'ees), (rare) ; C. francisci, Hook (new to Ire- 

 land) ; C. fluitans, Nees ; C. divaricata^ Smith ; C. elachista, Jack 

 (rare) ; C. curvifolia, Dicks. (Plate lY.) ; C. midiiflora, Spruce ; C. 

 catenulata, Huben ; Anthelia juratzTcana, Limpr. (new to Ireland) ; 

 Blepharostoma setacea, "Webb ; Jung er mania minuta, Crantz (rare) ;. 

 J. incisa, Schradr ; Pellia calycina, Nees ; Melzgeria conjugata, Ray, 

 Lindb. 



To Dr. Eichard Spruce, p.g.s., and to M. B. Slater, Esq., p.l.s., of 

 Torkshire, I offer my grateful thanks, for their kind replies when 

 consulting them on matters of doubt, and to W. E". Allen, Esq., 

 Dublin, for a delineation of the plants on Plates III. and lY. 



{The asterisk before a species '^denotes that it is new to the Co. DuUin.) 



1. Frulkmia dilatata, Linn. Hook. Brit. Jung. tab. 3. Plentiful on 



the trunks of trees. 



2. Frullania tamarisci (Mich. L.). Hook. Brit. Jung. tab. 6. On the- 



trunks of trees and on rocks near Sutton, and the Baily light- 

 house ; abundant on rocks, Ireland's Eye. 



3. Radula complanata, Linn. On the trunks of trees ; common. 



4. Lepidozia reptans, Linn. Hook. Brit. Jung. tab. 75. E. Bot. tab. 608. 



On a shady bank near the Quarries on the Sutton side of the 

 Hill. 



5. Cephalozia sphagni. — Jungermania sphagni, Dicks. Crypt. Brit. 



1875. — J. sphagni, Hook. Brit. Jung. tab. 33 [pro-parte). In 

 boggy places, on Sphagnum ; frequent. 



6. ^Cephalozia denudata. — Jungermania sphagni., Hook. Brit. Jung, et 



al. ex p. Sphagnocetis communis, f3. macrior, Nees, in Syn. 

 Hep. Odontoschisma denudatum, Lindberg. Dioecious. Stem pro- 

 cumbent, branched (branches with flagellse) ascending, leafless 

 near the points, tipped with gonidiferoas gemmae. Leaves 

 small at the base or none, increasing in size towards the middle 

 of the stem, and decreasing from the middle to the apex ; 

 roundish-ovate, with the points sometimes slightly emarginate. 

 Eolioles (stipules) larger and more readily observed than they 

 are in the commoner C. sphagni. Colesule cylindrical, fringed 

 at the mouth. Rare in Ireland, possibly it has been passed 



1 Scientific Proceedings, Eoyal Dublin Society, N. S., vol. i., p. 250. 



