

CANADIAN FOSSILS. 

 Piilophyton princepi, decorticated branch with fruit. 



Fragments of branchlets. 



— Portion of rhizoma giving off stems. 



Pdlophyton robmtius, — Fragment with Fruit. 

 Branchlets of Piilophyton elegant. 

 Portion of a branch of the same enlarged. * 

 and,12.'>. Carpolites? from Devonian Gaspc. 

 Carpolite or concretion do do. 





■ I-";-! 



I'LATK XI. I'silophylOH, ^r. 



Fig. 127. Psilophyioii /»;•(««/«,— Restored section of magnified stem, .ihowing, (a) scalar!- 

 .,. , .T'* ''"'■™ *'''8) C') woody cylinder, (c) cellular cylinder, (d) outer, 



Sbrous cylinder. 

 — ^ Scalariform vesseband woody fibres, 120diameters ; 128a woody fibre* 

 ;iOO diams ; 128b scalariform vessels, 300 diams ; 128c cellular mat- 

 ter, 300 diams. 



Leaf magnified showing sirim; 129a, portion more magnified, showing 



CL'llular structure and stoma. 

 Puilophyton ro6M9^M«,— Scalariform tissue, 100 diameters; 1 308, portion mora 



magnified. 



Transverse section magnified, showing scalariform axis and bark. 



Portion of the same more magnified. 



Psilophylon princepx,—mi\MxaeL, transverse sections showing axis, nat. size. 



The same magnified; 134a, scalariform tissue; 1 34b, woody fibres ; 134c 



bark fibres, 100 diams. 



Nematoxylon <««««,— Cross section of stem natural size, slwwing coaly bark and 



wood. 

 Longitudinal section, 100 diams ; (a) transverse section 100 diams 



(b, c,) cells more magnified. 

 NeiiKUoxi/loH cra*«ttm,— Longitudinal section, 100 diams ; (a) transverse sectioa 



100 diams ; (b) single cell more magnified. 



128. 



129. 



130. 



131. 

 132. 

 133. 

 134. 



135, 



i;^6. 



137, 



Vig. 



Fig. 



138. 



139. 



140. 



141. 



142 



145. 



146. 



147. 



148 



151 



153. 



154. 



156. 



156. 

 157. 

 158. 

 159 



■'thf-^i 



Pl-ATK XII. Psilophyton rohimlitii. 



Pnlophylon rohuMiiin, — Stems and fructification. 



Branch and fructification. :ii. .;.;,? <••■ i^;,'; 



Mass of spore cases. ■ ;^ 



Spore cases in different aspects. '■ "' • ' 



to 144. — - Surface cf stem enlarged. ' 

 Portion of stem showing impression of the axis. '■■•'' >■ • 



Platk XIII. Artkroitligma gracil-e. 



Arlhrostignui yracile, — Leafy stems flattened ; I46a, leaves enlarged. 



Stem giving off lateral branches. 



to 150. — • Fragments of stems showing leaves, areolcs (a) and internal axis (b). 

 and 152 — Erect stems with leaves, 157a, areoles enlarged. 



Section of erect stems with leaves. 



Fructification, supposed to be of this species. 



Stem partially restored. 



PiiATB XIV. Vordaites, J^c. 



Vordaites Robbii, — Part of a large leaf; 156a, venation enlarged. 



Point of a leaf, crushed. 



Point of a leaf. 



and IflO. — Clasping bases of leaves. 



