212 



DESCRIPTIVE CATALOGUE 



3x1*5x10 cm. in size, silicified in a dark brown matrix and 

 water-worn at one end, and the other is a wedge 3x2x8 cm., 

 silicified in a close hard matrix, partly white and partly orange 

 in colour. The two specimens undoubtedly belong to the same 

 species, but slight differences, probably in the time and modo of 

 entry of the petrifying medium have resulted in differing details 

 being best shown in each. In addition to the type-specimens 

 there are several other pieces of trunks and branches collected 

 at various times. An interesting specimen is a largish branch 



Text-fig. CO. FoJorarpovylon u-obio-nensc, sp. nov. Transverso sort ion of 

 small part of secondary wood, showing : m., medullary ray ; r/>., reain- 

 parenchyma; rp. 2 , resiu-parenelivma element stretch ing across two 

 tracheid- widths : ft., tracheid with resinous contents. No. V. MM a 



which dates probably from the original Sloane Collection (there- 

 fore collected prior to 1750). This branch is free from matrix 

 (text-fig. 63), and shows the woody texture very well. It is 

 about 4*5 cm. in diameter, roughly circular in cross-section, 

 and with the centre of the stem preserved. Another large 

 specimen (7 X 5 x 30 cm. long) is also apparently part of the 

 original Sloane Collection, aud may best be included in this 



