13 



and more resemble those of the genus Voltzia. They 

 have apparently three nerves, but the lateral ones may 

 be resin-vessels. 



Mr. Bain also finds at St. Peter's Island, with the bran- 

 ches and leaves of Tylodendron, the fruits or seeds represen- 

 ted in Fig. 6. They appear to be wedge-shaped and in 

 fours, and an involucre similar to that in Fig. C. accompa- 

 nies them, and is supposed to have oelonged to them, or 

 possibly to male flowers of the same species. Neither of 

 these organs have been found actually attached to the bran- 

 ches. If these fruits belong to Tylodendron they would in- 

 dicate taxine affinities, and they somewhat resemble the 

 curious coniferous fruits from the Tertiary of Australia 

 known as Spondylostrobus. 



FIG. 6. Fruit and bracts of Tylodendron. (a) Fruit- 

 (6) single seed, (c) bracts. (Drawn by Mr. Bain.) 



Stems having the markings of Tylodendron occur in the 

 Permo-Carboniferous of Cape John in Nova Scotia, and at 

 that place there are also obscure Yoltzia-like leaves some- 

 what resembling those of the Prince Edward Island 

 specimens. 



If we connect the trunks, branches, leaves and fruits 

 above referred to, we can now extend the description given 

 by Weiss much beyond that given to his T. speciosum, and 

 should perhaps give a new name to the form from Prince 

 Edward Island, more especially as it differs slightly 

 both in markings and structure from that described by 

 Weiss. 



TYLODENDRON BAINI, S.N. 



Exterior of stem with elongated leaf-bases, truncate above, 

 obtusely pointed below. Pith-cylinder and ligneous surface 



