172 BOTANICAL GAZETTE [august 



graphs, the individual cells are elongated longitudinally, and filled 

 with a dark substance. This stem was one of the few with the 

 bark still adhering. Figs. 1 2 and 13 show the details of the bast, and 

 it is evident that, although in other respects it resembles closely 

 some of the Kreischerville material, in this respect it is quite differ- 

 ent. In Brachyphyllum, Araucariopitys, etc., the phloem is com- 



ma 



are tangential rows of bast fibers. This alternat 



commo 



ily obtains in the Cupressineae (e.g., Janiperus 

 and Thuya), Taxodineae (e.g., -Sequoia), and Podocarpineae (e.g., 

 Podocarpus and Dacrydium), and adds another to the points of 

 resemblance between the araucarians and podocarps. 



In addition to these twigs, there was a considerable amount of 

 wood showing the same structure. Representative sections are 

 shown in figs. 17-19. It seems to conform exactly to the Br achy- 

 oxylon type, both normally and traumatically. A number of pieces 

 had been severely wounded, and in every case one or more tangen- 

 tial rows of resin canals extended from the wound cap: in one 



specimen there were as many 



As shown 



small 



formed traumatically 



Cupressinoxylon 

 In addition to the Pity oxylon, Araucarioxylon, and Br achy oxylon 



Cup 



noxylon Kraus. They have the same combination 



differ 



ma 



stems 



20-24 



com 



cells (figs. 20, 21), without the sclerites characteristic of the Brachy- 

 oxyla. The wood is composed of tracheids, rays, and wood paren- 

 chyma. The tracheids are small, with uniserial pits on the radial 

 wall. Usually the pits are scattered (fig. 23); rarely they are 

 crowded, but in neither case is there the slightest indication of bars 

 of Sanio. The parenchyma cells are relatively large, being some- 

 times three or four times the diameter of the tracheids. The rays 



m 



