EXPLANATION OF THE PLATES. 99 
PLATE XXXIV. 
FOSSILS OF THE CARBONIFEROUS ROCKS. 
PLANT. 
CRYPTOGAMIA—EQUISETACEZ. 
Fig. 1.—CaLAMITES CANN /FORMIs, Schlotheim. 
Petr. pl. xx., fig. 1. Brong. Hist. Vég., pl. xxi. Schimper, Pal. Végét., 
vol. 1, p. 316. 
Base of stem with attached rootlets. From Lindley and |iutton, Fossil Flora, 
vol, 1, pl. Ixxix., reversed figure, reduced to one-third of natural size. 
CoaL MEASURES; SHALE and SANDSTONE. Great Britain and Ireland. 
“One of the commonest species being found in almost every Coal-field 
in Europe.” Lindl. and Hutt., vol. 1, p. 79. 
FILICES. 
Fig, 2.—a, b. ALETHOPTERIS LONCHITICA, Brongniart, sp. 
Pecopteris Hist. Vég. Foss., p. 275., pl. Ixxxiv., P. heterophylla, Lindl. and 
Hutt. Foss. Fl., vol. 1, pl. xxxviii. P. lonchitica, ib. vol. ii., pl. cliii. 
Alethopteris (Sternberg), Schimper. Pal. Vegét, vol. 1, p. 554. 
Original. a. Portion of frond showing alternating arrangement of pinne. 
b. One of the pinnules enlarged. Dromagh Colliery, county Cork. 
Coa SHaLe.—Great Britain and Ireland. “ One of the commonest of the 
plants of the old Coal formation occurring in great numbers in various 
Mines in France, Bohemia, Silesia, and England.” Lindl. and Hutt., 
vol. i1., p. 153. It is also the most characteristic and abundant fossil 
fern in the Coal Measure shales of the South of Ireland. 
Fig. 3.—a, b. SpHenoprerts HanineGHausil, Brongniart. 
Hist. Vég. foss., p. 199, pl. lii. Lindl. and Hutt. Foss. Fl., vol. iii., pl. 
eciv. Schimper Pal. Vég., vol. i., p. 385. 
Original. a. Portion of frond, showing alternating arrangement of pinne. 
b. One of the four lobed pinnules, enlarged three diameters. Glengoole 
Colliery, county Tipperary. 
CoaL sHALE.—Newcastle-upon-Tyne ; south of Ireland, especially Tip- 
perary Coal-field (frequent), Silesia, Saxony, Westphalia, &c. 
