THE FLORA OF THE COAL FORMATION. 473 



Descr'qjth'e List of Carboniferous Plants found in Nova Scotia and 



New Brunswick. 



This list is, -with a few additional species and localities, tlie same 

 with that published in my " Synopsis of the Carboniferous Flora 

 of Nova Scotia," Can. Nat., vol. viii. 18G3. It is given here to aid 

 those who may desire to make collections of these interesting fossils, 

 and for comparison with the coal flora of other regions. 



Dadoxylon, Unger. 



1. Dadoxylon Acadianum, spec. nov. (Fig. 159, B). Large trees, 

 usually silicificd or calcified, with very wide wood-cells, having three 

 or more rows of small hexagonal areoles, each enclosing an oval pore ; 

 cells of medullary rays one-third of breadth of wood-cells, and con- 

 sisting of twenty or more rows of cells superimposed in two series. 

 Rings of growth indistinct. M. C.,* Joggins, Fort Hood, Dorchester 

 (J. W. D.). 



2. D. materiarium^ spec. nov. (Fig. 159, C). Wood-cells less wide 

 than those of the last ; two to rarely four rows of hexagonal discs. 

 Medullary rays very numerous, Avith twenty or more rows of cells super- 

 imposed in one series. Rings of growth slightly marked. Approaches 

 in the character of its woody fibre to D. Brandlingii ; but the medul- 

 lary rays are much longer. Some specimens show a large Sternbergian 

 pith, with transverse partitions. -{- Vast numbers of trunks of this species 

 occur in some sandstones of the Upper Coal formation. M. and U. C, 

 Joggins, Malagash, Pictou, etc. (J. W. D.) 5 Glace Bay (H. Poole) ; 

 Miramichi (G. F. Matthew). 



3. D. anfiqinics, spec. nov. (Fig. 159, D). Wood-cells narrow, thick- 

 walled, two to three rows of pores. Medullary rays of three or four 

 series of cells with twenty or more superimposed, nearly as Avidc as 

 the wood-cells. Rings of growth visible. This species would belong 

 to the genus Palaoxylon of Brongniart, and is closely allied to D. 

 Withami, L. and IT., which, like it, occurs in the Lower Coal measures. 

 L. C, liorton (Dr Harding). 



4. D. annulatum, spec. nov. Wood-cells Avith two or three rows 

 of hexagonal discs. Medullary rays of twenty or more rows of 

 cells superimposed, in tAvo series. Wood divided into distinct 

 concentric circles, alternating with layers of structureless coal repre- 

 senting cellular tissue or very dense wood. A stem six inches in dia- 

 meter has fourteen to sixteen of these rings, and a pyritizcd pith about 



* U. C, M. (!., and L. C, indicate the Upper, Middle, and Lower Coal formations, 

 t Canadian Naturalist, 1857 (Fig. IGO, sujn-a). 



2 II 



