180 DESCBirTIVB CATALOGUE 



The following specimens are doubtfully referred to this 

 species : 



V. 7840. An isolated, poorly-preserved, radial section, probably 

 C. vectense. Lower Greensand ; Shanklin (? ), Isle of 

 AVight. Trftnsft -i-i-cd from Jiotttiiical 



V. 5635 & V. 5782. Parts of the same polished specimen, a 

 small stem of wood about 5 cm. in diameter showing 

 the centre of the a\i> and well-marked annual rii 

 The granular (m>-Msand matrix in which it \\<-<, :i< 

 well ns the texture and colour of the petrified w><.l, 

 are identical with specimens of Cvpressinowylon 

 vfcl> //>r. and it is probable tliat it is a specimen ot' 

 this wood, though, as it is without any hi>t<>ry, it did 

 not seem worth cutting. 



Trantf erred from Botanical /><i>f. 



V. 7076. A small wodge-fOinpcd jiiece of wood not worth 

 cutting, but very like the other blocks of C. rcct- 

 in general texture. Lower (Jreensand ; Shanklin, Isle 

 of Wight. Transferred from liotanicu! Dq>t. 



Cupressinoxylon luccombense, sp. HOT. 

 [Text-figs. 51, f>L, ">:J.] 



J)ia<jnosis. Pith obout - ram. in diameter, composed of 

 ordinary rounded cells, with somewhat thickened walls and 

 stone-cells. Primary bundles entirely centrifugal. Secondary 

 wood composed of tracheids very variable in size and in arrange- 

 ment, up to about 50 /i in diameter ; sometimes arranged in 

 very regular radial series, and elsewhere in irregular groups. 

 Bordered pits round, isolated, and in one row. Annual rings 

 conspicuous, a few of them " composite," like those in C. vectense. 

 Medullary rays uniseriate ; cells all alike ; walls apparently 

 smooth; pits in radial walls in groups, principally 3-4, largish, 

 irregularly round or oval, the pits in a group differing greatly 

 in size. Resin-parenchyma abundant, scattered all through 

 the wood, cross-walls rectangular. 



