244 Canadian Record of Science. 



and probably D. Ungeri to Cordaioxylon, while I am equally 

 certain that the other Devonian species, D. Ouangondianum, 

 D. Salli and D. Newberry i should be referred to Dadoxylon, 

 a name which is properly applied to the woods of Palaeozoic 

 Conifers, as Walchia, &c. The name Araucarites, used by 

 Stenzel after Goeppert and Presl, leads to a mistaken view 

 of affinities. 



Before leaving this species, it is interesting to observe 

 that the association of this type of gymnospermous wood, 

 with the very different type of plant of the genus Kalymma 

 described in Prof. Penhallow's note, applies both to the 

 Cypridina shales of Europe and to the corresponding beds in 

 America. 



Dadoxylon Newberryi, Dawson. 1 



"With the above specimens of Prof. Clarke's collections 

 from the Styliola beds, are fragments of much larger stems 

 with thicker-walled woody fibres, having three rows of con- 

 tiguous bordered pores, and long medullary rays, with for 

 the most part, two rows of narrow cells side by side. On 

 comparison with the specimens collected by Dr. Newbeny 

 in the Devonian of Ohio, from which my description of 1871 

 was taken, I find no difference other than what may depend 

 on difference of preservation. I therefore refer Prof. 

 Clarke's specimens to the above species, which is a true 

 Dadoxylon and nearly allied to D. Ouangondianum of the 

 Devonian of New Brunswick, and to D. Acadianum of the 

 Lower coal formation of Nova Scotia. All three species oc- 

 cupy an intermediate position between the species with 

 more composite medullary rays separated by Brongniart to 

 form the genus Palaoxylon, and the ordinary species with 

 medullary rays having only one row of cells like D. ma- 

 teriarium, of the Upper coal formation. 



Kalymma grandis, Unger. 

 By D. P. Pexhatxow. 



Specimens of a fossil plant from the Genessee or Black 

 Shale (Devonian) of Moreland, Kentucky, collected by Mr. 



1 Report on Erian Plants of Canada, 1871. Page 14. Plate I. 

 Figures 7 and 8. 



