OF LOWER GRKEXSAND PLANTS. 



V. 6132 j. Figured, text-fig. 110, C, & text-fig. 111. The same 

 four leaf-traces in a tangential section still further out, 

 in position marked C on slide V. 6132 6. One of the 

 leaf-traces shows its tissues very completely, and is 

 specially figured on p. 328. 



V. 6132 k. Figured, text-fig. 110, D. The same four leaf-traces 

 still further out, in position marked D on slide 

 V. 61326. In this section the traces show some 

 strands of secondary xylem. 



V, 6132 1. Tangential section of two of the same four leaf- 

 traces, still further out, in position marked E on slide 

 V. 6132 b. The mass of secondary xylem in one of 

 the leaf-traces is conspicuous. The medullary rays 

 and tracheids of the wood of the main axis are well 

 seen in this section. No history of block, save old 

 label on which " Greensand" and "from Kew, 1881" 

 are written. 



Transferred from the Botanical Dept., 1898. 



Genus BENNETTITES, Carruthers. 

 [See p. 23.] 



Bennettites inclusus, Carruthers sp. 

 [Text-fig. 112.] 



1870. Mantellia inclusa, Carruthers, Trans. Linn. Soc. Lend. ; vol. 26, 



p. 703, pi. Ixiii, figs. 2, 3. 

 1874. Oycadoidca inclusa, Schimper, Trait6 Pal-eon t. Veget., vol. 3, 



p. 556. 



Diagnosis. Founded on external features of a fruiting trunk, 

 the internal tissues of which appear to be partly petrified. The 

 diagnosis given by Carruthers (1870) is as follows : "Trunk 

 small, cylindrical ; medulla abundant ; wood-cylinder slender ; 

 cortical layer large, penetrated by numerous small, ascending, 

 vascular bundles ; bases of the petioles regularly lozenge-shaped, 

 three-eighths of an inch broad by a little more than an eighth 

 deep; secondary branches large; fruit included in the bases of 

 the petioles." 



