i 4 2 STUDIES IN FOSSIL BOTANY 



The base of this curious stem, showing all the steles 

 thus accidentally enclosed in it, is now preserved in the 

 Museum of the Owens College, at Manchester. 



tt 



Fig. 57. — Lefiidodendron (LepidofthloiosT) Wunschia,num. Transverse section from outer 

 part .of stele, showing leaf-trace, jr 2 , secondary wood ; vi.r, medullary rays 3 one of 

 which contains tracheides ; ph t phloem (meristematic zone of Seward) ; It, leaf-trace, 

 with a small mesarch strand of primary xylem, and a broad zone of secondary wood 

 (with short tracheides) and phloem, x about 55. From <* section presented by 

 Mr. Kidston. S. Coll. 1183. (G. T. G.) 



A magnificent specimen from Dalmeny (see Fig. 

 57), referable to the L. Wunschianum type, has the 

 interesting peculiarity that the leaf-traces, after leaving 



