DADOXYLON. 201 



3. Dadoxylon Maitlandi (Shirley). 



1898. Araucarioxylon Maitlandi, Shirley, Bull. 7, Geol. Surv. Queensland, 

 p. 14. 



Type. Brisbane Museum, Geol. Surv. Coll., Cease 53, No. 73. 



"Annual zones of wood distinctly marked, and of equal transverse 

 diameter ; medullary rays of one or two rows of cells, showing in 

 a tangential section 4-26 cellules, the central few often flanked by 

 a short second row ; pits spirally arranged in 2-3 rows. Near the 

 annual zones the tracheides are peculiarly compressed, and the 

 ranks distorted " (from Shirley). 



D. Maitlandi is known only from Yam Creek, near Cooktown, 

 Upper Bowen Formation, Queensland. 



Not represented in the British Museum collection. 



4. Dadoxylon Binneyi (Shirley). 



1898. Araucarioxylon Binneyi, Shirley, Bull. 7, Geol. Surv. Queensland, 

 p. 14, pi. xxv. 



Type. Brisbane Museum, Geol. Surv. Coll., No. 77. 



"Annual zones of wood distinct, varying much in transverse 

 diameter; medullary rays of a single chain of cellules, in a 

 tangential section numbering 2-9 ; tracheides usually with three 

 rows of pits, spirally arranged and polygonal by compression " 

 (from Shirley). 



D. Binneyi is known only from Jack's Creek, Bowen River, 

 Upper Bowen Formation, Queensland. 



Not represented in the British Museum collection. 



5. Dadoxylon Williamsoni (Shirley). 



1898. Araucarioxylon Williamsoni, Shirley, Bull. 7, Geol. Surv. Queensland, 

 p. 15. 



Type. Brisbane Museum, Geol. Surv. Coll., Case 53, No. 74. 



" Annual zones moderately distinct in transverse section, and of 

 equal diameter ; medullary rays of one or two rows of cells ; 

 tracheides unusually broad, and very unequal ; pits spirally arranged 

 in two or three rows, densely packed and polygonal. Near the 

 boundaries of the annual zones the tracheides are peculiarly 

 complicated, and the ranks distorted " (from Shirley). 



