182 



DESCRIPTIVE CATALOGUE . 



DETAILS OF ELEMENTS. The rounded elements of the pith 

 all show rather thickened walls, with pits. The rounding off 

 of the cell-walls leaves small, triangular, intercellular spaces 

 between the elements. The elements increase towards the 

 centre, the diameter of the largest being about 80 /A. Some- 

 what larger than these are the stone-cells, up to 95 p in 

 diameter, with very thickened walls. A small number of these 

 lie grouped among the pith-cells. 



m.w. 



Text-fig. 51. Cupressinoxylon hiccomlense, pp. nov. Transverse section of 

 a snuill part of the secondary wood, showing the irregular size and 

 arrangement of the tracheids. r.p., the resin-containing wood-paren- 

 chyma; and m.w., the sloping end-walls of the medullary ray-cells. 

 No. 13195 a. 



The small flat bundles of primary wood, with very few 

 protoxylems, do not show any special feature in the sections 

 available. The secondary wood consists of regular radial series 



