OJ? LOWER GHEENSANl) 1'IANTS. 115 



Pityoxylon sp. 



V. 8134. Transverse section (rather thick and uu covered) of a 

 branch, at present 3 cm. in diameter. The pith, how- 

 ever, is at one side, and so the living branch must 

 have been at least 5 cm. in diameter. The annual 

 rings are very well marked. The pith and primary 

 bundles are jarred and broken, and the section per- 

 meated by large cracks. At one side there is a wound, 

 which has caused large numbers of traumatic resin- 

 canals to develop. As no longitudinal sections are 

 available the specimen cannot be named, but the tissue 

 is well preserved in places, and if the original block 

 could be found and sections cut from it, the specimen 

 could certainly be identified. It is possible that the 

 resin-canals are all due to the influence of the wound, 

 in which case the plant is not a Pityoxylon in the 

 narrowest sense, but for the present may best be 

 placed here. Lower Greensand ; Maidstone. 

 Transferred from the Botanical Dept. [CarrutJiers Coll.], 



V. 8284. Longitudinal tangential section of a gymnospermic 

 wood, very poorly preserved. The uniseriate rays 

 show in tangential view fairly well, and there are 

 some larger spaces which may represent resin-ducts 

 in multiseriate rays. Lower Greensand (?) ; Maidstoue. 



No history [Carruthers Coll.']. 



V. 8285. lladial longitudinal section of a gymnospermic wood, 

 showing round bordered pits in one series. The walls 

 of the medullary ray-cells are much thickened and 

 show in places good examples of the typical " abio- 

 tiuean pitting." Lower Greensand (?); Maidstone. 



No history [Carruthers Coll.'], 



The above two slides appear to belong to the same wood, 

 their cover-glasses are similarly cut at the corners, and their 

 colour and texture are the same, and both have " Maidstone " in 

 the same writing cut on the glass. In this point, and also in 

 the colour and character of the petrifaction of the wood they 

 agree with V. 8134 described above, and I think it almost 



