362 SEQTJOnNBAB [CH. 



vascular bundles were found to be arranged round the margin of 

 tbe peltate portion of the scales and completely surrounded hj 

 transfusion tissue, 'a feature of marked contrast to the scale- 

 bundles in Sequoia and at the same time one which indicates a 

 strong affinity with the Araucarineae.' The mature scales afforded 

 no indication of the number or place of attachment of the seeds, 

 but an immature cone lent support to the view that each scale bore 

 four ovules on the peduncle near the cone-axis. HolUck and 

 Jeffrey regard the scales as Araucarian and think it probable that 

 they were connected with the twigs named by them Geinitzia 

 Reichenbachii. 



PSEUDOGEINITZIA. Hollick and Jeffrey. 

 Pseudogeiniizia sequoiiformis Hollick and Jeffrey. 



A special generic name^ is given to some four-sided scales on the 

 ground that they not only differ in their tetragonal form from the 

 hexagonal scales of Eugeinitzia but probably belonged to a smaller 

 cone. As in the former type the vascular bundles are enclosed by 

 transfusion-tracheids. The investigations of the American botanists 

 show that the sterile branches, G. Reichenbachii, exhibit certain 

 Araucarian tendencies and that the cone, Geinitzia gracillima, as 

 also the detached cone-scales, Eugeinitzia and Pseudogeinitzia, 

 cannot be included in Sequoia. 



Until more is known of the morphological nature of the cones 

 described by Heer and other authors as Sequoia Reichenbachii, 

 S. ambigua, etc., their relationship to existing Conifers cannot be 

 settled; but meanwhile it would seem convenient to include both 

 the smaller oval cones and the longer forms represented by G. 

 gracillima in the same genus Geinitzia, applying the name to cones 

 having spirally arranged scales with peltate distal ends superficially 

 resembling those of Sequoia. The name Sequoia, much too freely used 

 by palaeobotanists, has in some cases^ been applied to cone-bearing 

 branches that are almost certainly identical with Sphenolepidium 

 Kurrianum (Dunk.). On the other hand for sterile foliage-shoots 

 unconnected with cones the non-committal name Pagiophyllum, is 

 suggested on the ground that foliage-shoots alone cannot be more 

 precisely determined. 



1 HoUick and Jeffrey (09) B. p. 45, PI. x. fig. 14; PI. xxv. fig. 4. 



2 Heer (69) p. 11, PI. i. figs. 10—13 (' Sequoia fasligiata'). 



