1. 



fc'. 





02 



CANADIAN FOSSILS. 



; 



Fig. 204. AUlhoplerii (/iscrrp«;u— Narrow variety ; 204a to c. venatiou. 



20,5. Small lateral pinna. 



UC>. Aletho/tleris im/eiis, — Venation, natural size. 

 207 &nii 'lOH. J'ecopterisseiru/ata, — 208a, b, venation. 



209. Large specimen. * 



210. J^ecopteris preciosa, — Small varioly. 



211. Large variety, 211a, pinnule eiilargeil. 



212. Nexiropteria pohjmorfihii. — 212a, pinnule sliowlng venation. 

 2i;!. Neuroplerif nfrriilnln, — Pinnule showing venation, enlarged. 



I'l.ATK \ix. Fri/i(.i, i}c. 



Fig. 214 to 215. ('iiriliocar/miii cnrnti/um, — Different sizes ami states of preservation. 



21t>. Specimen enlarged, showing corrugated nuclens and tegmen. 



217. Specimen enlarged, showing indications of cotyledons. 



21H. Specimen enlarged, showing thickened testa and foramen at a; 2lHb,, 



specimen enlarged showing foramen in usual state of jireservation 



219. Cartliocarpum liaileyi. 



220. to 221. Cardiocarpum Crampii. 



222. Enlarged, showing nucleus and outer coiit with fonimen. 



223. Carditirarpum ovah. 



224. Knlarged, showing nucleus and outer coat. 



225. Cardiocarpum ohiiquum. 



226. Specimen enlarged. 



227. Triijonuairjmiii raremositm, — Nucleus, nat. size and enlarged ; 227a, same on 



peduncle. 



228. Trigonncarpum pcranti(juum,—0\iicT coat; 228a, nuclens, deprived of coat. 



229. Carfiolit/ies compaclus. 



230 and 231. Fruits or bracts of uncertain nature. 



232. Sporangia of Psilophi/ton? (Sporanyites accuminala.) 



233 and 234. The same enlarged. 



235. Antholithef Bevonicus ; 23.')a, terminal portion; 23rib, c, lortions enlarged. 



236. Antholithe» floridus ; 236a, portion enlarged. 



Platk XX. Upjier Silurian I'lanh. 



Fig. 237 and 238. Fragments of Fucoids. 

 239. Stem with woody axis. 



240 to 241. Rhizomata of Psilophyt n, showing areoles and rameutii. 

 242. Sections of a specimen, showing the axis ; 242.1, b, Scalariform tissue of .the same. 

 243 to 245. Fragments of stem? of Pgilophylon robusUm. 



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ii'iii^M^itriiiii 



