1865.] DAWSON COAL-FORMATION. 163 



6. L. TRiGONOLEPis, Bunbury. 

 M. C, Sydney (E. Brown). 



Lepidophyllttm, Brongn. 



1. Lepidophylltjm lanceolattjm, L. & H. 

 M. C, Joggins ; U. C, Pictou (J. W. D.). 



2. L. TEINERYE (?), L. & H. 



Two-nerved or three-nerved, like L. trinerve, L. & H., but nar- 

 rower. Both the above are parts of Lepidostrobi. 

 U. C, Joggins {J. W. D.y 



3. L. MAjus (?), Brongn. 



M. C, Sydney {B. Brown), 



4. LEPiDOPHTLLTjjyr, sp. 



Broad ovate, short, pointed, one-nerved, half an inch long. 

 U. C, Pictou. 



5. L. INTERMEDIUM, L. & H. 



M. C, Sydney {R. Brown's list). 



Halonia, Lepidosfrohus and Lepidojohyllum, including only parts 

 of Lejpidodendron and Lepidojphloios, are to be regarded as merely 

 provisional genera. 



Lepidophloios, Sternberg. 



1. Lepidophloios Acadianits, spec. nov. PL X. fig. 45, PI. XI. 



fig. 51. 



Leaf-bases broadly rhombic, or in old stems regularly rhombic, 

 prominent, ascending, terminated by very broad rhombic scars 

 having a central point and two lateral obscure points. Outer bark 

 laminated or scaly. Surface of inner bark with single points or de- 

 pressions. Leaves long, linear, with a strong keel on one side, 5 

 inches or more in length. Cone-scars sparsely scattered on thick 

 branches, either in two rows or spirally, both modes being some- 

 times seen on the same branch. Scalariform axis scarcely an inch in 

 diameter in a stem 5 inches thick. Fruit, an ovate strobile with 

 numerous acute scales covering small globular spore- cases. This 

 species is closely allied to Ulodendron majus and Lepidophloios 

 laricinus, and presents numerous varieties of marking. 



M. C, Joggins, Salmon Eiver, Pictou {J. W, D.) ; Sydney (i2. 

 Brown). 



2. L. PEOMiNULTJS, spec. nov. PI. XL fig. 52. 



Leaf-bases rhombic pyramidal, somewhat wrinkled at the sides, 

 truncated by regularly rhombic scars, each with three approximate 

 vascular points. 



M. C, Joggins (J". W. D.). 



3. L. PARVUS, spec. nov. PI. XI. fig. 50. 



Leaf -bases rhombic, small, with rhombic scars broader than long ; 



