XLVii] geinitzia; etjgeinitzia 361 



is regarded by Jeffrey as an essential character of the Araucarineae 

 and the absence of any Abietineous pitting in the medullary-ray 

 cells is another Araucarian feature. The conclusion drawn by 

 Jefirey is that despite the absence of Araucarian pitting on the 

 tracheids the anatomical details point to an Araucarian relationship, 

 the wood of the cone-axis having the characters of Sinnott's genus 

 Paracedroxylon. No information was obtained with regard to the 

 seeds. Jeffrey's examination of the cone shows, as he says, that 

 it does not agree structurally with the cones of recent Sequoias, 

 but the reference to the Araucarineae rests on a slender basis. 



In their account of the Kreischerville plants HoUick and 

 Jeffrey^ describe some sterile branches as Geinitzia Reichenbachii 

 (fig. 806, D ; page 437) which agree closely with specimens referred by 

 authors to Sequoia Reichenbachii though they might equally well be 

 identified with Elatides curvifolia (Dunk.). For such sterile twigs the 

 name Pagiophyllum would be preferable. The pith of the Kreischer- 

 ville shoots contains groups of sclerous cells ; the leaf-bases show in 

 transverse section three resin-canals and these are enclosed by the 

 transfusion-tissue which accompanies the vascular bundle. In its 

 distribution the transfusion-tissue differs from that in Sequoia, 

 which is confined to the flanks of the vascular strand, and agrees 

 with the corresponding tissue in Araucarian leaves. There is no 

 xylem-parenchyma and the tracheids have 1 — 2 rows of bordered 

 pits, in contact or sometimes separate and if in two rows alternate. 

 The wood agrees with that described by Hollick and Jeffrey as 

 Brachyoxylon and shows a decided Araucarian affinity. In the 

 absence of cones attached to the shoots it is not possible to settle 

 definitely the systematic position of the specimens. A fact in 

 favour of identifying the branches with Sequoia (or more appro- 

 priately Geinitzia) Reichenbachii is the occurrence in the same beds 

 of detached cone-scales very similar to those of G. gracillima, which 

 are referred to two new genera, Eugeinitzia and Pseuclogeinitzia. 



EUGEINITZIA. Hollick and Jeffrey. 

 Eugeinitzia froxima Hollick and Jeffrey. 



The scales on which this species is founded^ closely resemble 

 those of recent species of Sequoia and Geinitzia gracillima. The 



1 HoUiek and Jeffrey (09) B. p. 38. 



2 Ibid. p. 43, PI. X. Hg. 10; PI. xxv. figs. 1—3. 



