332 DESCRIPTIVE CATALOGUE 



V. 10168. A rather thick covered slide, a transverse section 

 of about one-fourth of the trunk. The anatomical 

 details can be seen fairly well, though the tissues are 

 black and rather opaque. The alternating wood-zones, 

 as described from the recently cut sections, are hero 

 quite apparent. Cut into the glass is " Rauineria 

 (Goeppert), Greensand? Hooker." No history. 



Transferred from the Botanical Dtpt., 1898. 



V. 6132, V. 6127 are probably parts of the same trunk, if not 

 they are co-types. 



V. 6127. Type (or co-type). This block was almost entirely 

 cut up into series of sections in different directions, so 

 that only a very small part of it now remains, 

 measuring 3x2x2 cm. This small piece includes 

 part of the pith and about 8 alternating wood-zones. 

 Two surfaces are cut at right angles to each other, 

 transversely and longitudinal-radially to the main 

 axis of the trunk, and these faces have been partly 

 filed smooth. When held facing the light these two 

 surfaces can be seen simultaneously, and the gleam of 

 the transversely cut wood-zones is apparent to the 

 naked eye, and is seen to alternate in the two surfaces 

 as is figured iu text-fig. 101. 



V. 6127 a. Figured, PI. XXXTT, fig. 2; text-figs. 105, 100, 

 & 108. Transverse section of the trunk, showing the 

 pith, perimedullnry wood zone, and the alternating 

 series of wood-rings, all well preserved. The pitting 

 of the horizontally running tracheids can be well seen 

 in many places. 



V. 6127 b. Figured, text-fig. 103. Transverse section similar 

 to the above, in which the perimedullary wood-zone is 

 very well preserved. 



V. 6127 C. Figured, text-figs. 102 & 109, A. Transverse section 

 similar to the above, showing all the characteristic 

 features very well preserved. 



