X. E. Stevens — Petrified Palms. 



435 



biindel" or the ' ' Kreuzungsbiinder ' of Stenzel. It is not 

 always easy to decide in which chiss a given section of 

 a bundle should be placed ; nor is the distinction of great 

 importance, since the two names are used to designate 

 merely different regions of the same bundle. The ''tran- 

 sition bundle" is simply the longitudinal bundle as it 

 turns outward toward a leaf, while the "transverse 

 bundle" (which might well be called "oblique") is the 

 continuation of the transition bundle out toward a leaf. 



'I 



I 



[I I' 



ill 



i] 

 I 



f ' 



if 



\ 



Fig'. 5. — P. cheyennense, longitudinal section of a fibrovaseular bundle, 

 showing (left to right) parenchymatous cells of fundamental tissue, scler- 

 enchyma (the posterior sclerenchymous arch), two vessels, phloen region (not 

 preserved), a portion of the main bast region, and inore fundamental tissue. 

 X 45. 



Probably the section shown in fig. 4 most nearly exempli- 

 fies Stenzel 's description of a transition bundle, and figs. 

 6 and 7 the oblique bundle. 



One curious bundle was found, fig. 8, which might be 

 interpreted as a chance union of two bundles, or possibly 

 as a branching longitudinal bundle. 



Fungus hyplice. — Fungus hyphse are apparently com- 

 mon in petrified palm woods. Berry has described two 



