196 WILLIAMSONIA. 



the specimens of Williamsonia peeten shown in PI. III. Fig. 4 ancl 

 in PI. III. Fig. 6, but there is no indication of any auriculate 

 upper edge at the base of the pinnae. The veins in Andrae's 

 specimen should have been drawn rather more spreading or oblique 

 to the edge of the lamina in the basal portion of the pinnse. This^ 

 plant, I believe, is specifically identical with Williamsonia pecten. 



Text-fig. 32. 



These two drawings represent portions of fronds of the Indian 

 species figured by Morris, Oldham & Morris, and Fiestmantel as 

 Pal<so%amia cutchensis or Ptilophyllum cutohense from the Bajmahal 

 HiUs. The small basal pinnae (B) have the upper edge of the base 

 free, and agree precisely in this respect with the small basal pinnae 

 of Williamsonia pecten (cf. Text -fig. 33). Fig. 32a shows the 

 lower portions of a few pinnae attached to the rachis ; each pinna 

 is l'4cm. long and 3mm. broad; the veins are slightly spreading 

 from the base and diverge at the apex, being repeatedly branched 

 as they pass through the lamina. The drawing was made from 

 one of several fronds preser^'ed in unusual perfection in a siliceous 

 rock, where they occur in association with Dictyo%amites} 



There is a close resemblance between the Portuguese frond from 

 Cape Mondego figured by Morris ^ and by Heer ' respectively as 

 Otommites gramineus, var. Mundm, and Otozamites angustifolius, 

 and some of the examples of Williamsonia pecten ; the original of 

 the drawing given by Morris and copied by Heer is in the British 

 Museum Collection (41,371). It is not improbable that the English 

 specimens from the Stonesfield Slate named by Lindley & Hutton 

 Zamia taxina are specifically identical with the East Yorkshu'e 

 plant. 



Specimens of Williamsonia pecten are abundantly represented in 

 collections of English Jurassic plants, more particularly in the 

 Museums of Scarborough, Cambridge, ITewoastle, and Manchester. 

 In the Natural History Museum, Paris, there is an example of this 

 species labelled Otozamites irevifolius, from Scarborough, the gift 

 of Dr. Mantell. 



1 Feistmantel (76), pis. v. and vi., etc. 

 ' Morris, in Sharpe (50), pi. xxvi. fig. ' 

 a Heer {8V), pi. is. fig. 2. 



