252 



DESCRIPTIVE CATALOGUE 



where the petrifaction has a clear golden colour, the pits can be 

 seen through the wall leading to the minute central lumen. 

 The lumina of the cells vary somewhat in size, but are always 

 extremely reduced (text-fig. 73, ?., and PI. XXIII). 



L 



In longi- 



Text-fig. l^. Vectia luccomhc.nsi*, sp. nov. JRadinl section showing the 

 regular alternation of pairs of thin-walled pitted elements, t'. 1 and v.\ 

 with the fibres, s. I., lumen of fibres ; *., medullary ray-cells ; a., com- 

 pressed parenchyma-cells intermittently found between t-. 1 and v.- : 

 p., large circular pits which lie in a single row in the radial walls of 

 r. 1 and '. 2 . No. V. 13230 b. 



