ANDROVETTIA 



437 



traces of two or three leaves. Several stomata occur on the sur- 

 face of the phylloclade, each surrounded by 4 5 accessory cells. 

 Sclerotic cells are present in the pith. The secondary xylem is of the 

 coniferous type and the uniseriate bordered pits on the tracheids 

 may be either separate and circular or flattened by contact. No 

 resin-cells, such as occur in the wood of Phyllocladus, were recog- 

 nised. The medullary rays are not described. The data are 





FIG. 806. A C, Androvettia statenensis. D, Geinitzia 

 fieichenbachii. (A, B, x 6; C, x 7; D, x 7; after 

 FIG. 805. Elatodadus Hollick and Jeffrey.) 



elegans. (Nat. size; 

 after Heer.) 



hardly sufficient to justify the inclusion of this type in the 

 Araucarineae : the occasional flattening of the tracheal pits and 

 the absence of resin-cells are not fatal to an alliance to Phyllocladus. 

 The precise position of the genus within the Coniferales must for 

 the present be left in doubt. 



Androvettia elegans Berry. 



This species, from the Upper Cretaceous of Georgia, is repre- 

 sented by dorsiventral fern-like vegetative shoots which, as Berry 1 

 1 Berry (14) p. 103, PI. xvm. 



