Fossil Floras of Cape Colony. 33 



Plate IV., tig. 3 (315c, 316c). 



This specimen has a length of 7-5 cm. ; it is not quite complete 

 at the distal margin (lower end of drawing) ; its greatest breadth is 

 7 cm., but the edges are shglitly torn and imperfect. At the upper 

 end, as seen in the figure (the base of the specimen), there is a 

 straight edge to the lamina, which no doubt marks the original place 

 of attachment. The lamina is traversed by numerous spreading 

 veins, as in a true Gyclopteris, but the median portion is occupied 

 by more numerous parallel veins which form a fairly distinct and 

 broad midrib. Over part of the surface the veins are obscured 

 by the presence of flexuous and irregularly anastomosing fine 

 lines. The resemblance to Tate's type-specimen is very close, as 

 regards shape, the presence of a midrib, and the surface texture- 



Fragments of Zamites fronds and rachis with Araucarian scales 

 and seeds occur on the back of this slab. 



Plate IV., fig. 4 (280c). 



A scale similar to that shown in fig. 3, but rather less and with 

 a more complete base (upper end of drawing). The well-marked 

 slightly curved line at the termination of the midrib may be 

 regarded as the broad attachment-area by which the scale was 

 articulated to its supporting organ. The outline is torn and very 

 indistinctly defined ; the surface features agree exactly with those 

 in Tate's type-specimen. 



Plate IV., fig. 6 (311c). 



A scale 12 cm. long, torn across close to the base. The lower 

 margin is clearly defined, but the distal end and upper edge are 

 torn and incomplete ; the whole is traversed by veins, which are in 

 places hidden by the presence of the fine hair-like markings shown 

 between the ribs in fig. 5 ; the veins run parallel to the upper edge, 

 which is approximately in the position of the midrib, on which the 

 whole lamina was evidently folded as if clasping and protecting 

 some immature organ. The drawing, therefore, probably represents 

 a large scale-leaf folded along its axis. 



Plate v., fig. 5 (319c). 



A portion of a scale-leaf enlarged three times to show the veins 

 as prominent ribs and the delicate carbonaceous lines forming an 

 irregular network in the intei'costal areas. 



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