84 EXPLANATION OF THE PLATES, 
PLATE XXVIII. 
FOSSILS OF THE OLD RED SANDSTONE OR 
DEVONIAN ROCKS. 
PLAN TP: : 
CRYPTOGAMIA.—FILICES. 
Fig. 1.—a, 6, PALZorTeRIs HrBernicus, Forbes, sp. 
Cyclopteris, KE. Forbes. Brit. Assoc. Rep., 1852. 
Adiantites, Ad. Brorgniart. Journ. Roy. Dub. Soc., 1857. 
Paleopteris, W. P. Schimper. ‘Traité Pal. Vég., 1869, vol. i., p. 475, 
pl. xxxvi. 
a. Original. Reduced to one-sixth of natural size. Frond, showing fruc- 
tification at its lower portion. 
b. Original. Natural size. Portion of a pinnule with leaflets. 
Upper Op Rep SAnpsToNgE, Kiltorcan Hill, Co. Kilkenny. Mus. G. S$. I. 
Additional localities: Gokane Point, W. of Toe Head; Tracarta, Castle- 
haven, Co. Cork; and Tivoli House, a little E. of Cork. Mus. G. S. I. 
LYCOPODIACEA. 
Fie, 2.—a-d. KNorriA BAILyAna, Schimper. 
Traité Pal. Vég., vol. ii., part i., 1870, p. 48. 
a,b. Original. a. Lower portion of stem, showing axis; reduced to one- 
third of natural size. 6. Natural size. From 2a; showing longitudinal 
ribbing and alternate arrangement of cicatrices. 
e,d. Original. c. Upper part of stem (Cyclostigma minuta, Haughton). 
d. Natural size. Portion of the surface of 2c. 
Upper OLp Rep SanpsTone, Kiltorcan Hill, Co. Kalkenny. Mus. G. 8. IL. 
Additional locality: Tracarta, Co. Cork. Mus. G. S. I. 
Fic. 3.—a, b. CycLostigGMA KinTrorKENSE, Haughton. 
Journal, Royal Dublin Society, vol. ii., p. 407, pl. xvi., fig. 1. (Cyclostigma, 
pl. xiv., figs. 1, 2, 3; C. minutum, pl. xvi., fig. 2, and C. Griffithit, 
pl. xvil., are probably synonyms.) 
a, b. Original. a. Reduced to half the natural size. 0b. Natural size. 
From 3 a, showing finely striated surface and widely distant cicatrices. 
Uprer Oup Rep Sanpstone, Kiltorcan Hill, Co. Kilkenny. Mus. G. S., I. 
Additional locality : Tracarta, Co. Cork. Mus. G. 8, I. 
