XXXVIl] WILLIAMSONIA 449 



'fruit' Podocarya, the specific name Bucklandi being afterwards 

 given by Unger 1 . Brongniart 2 called attention to the resemblance 

 of Buckland's specimen to Williamsonia, and that name has been 

 adopted by Saporta 3 , Nathorst, and other authors 4 . Sowerby's 

 drawings illustrating the original description, one of which is 

 reproduced in fig. 560, show that this unusually fine specimen is 

 an ovulate Bennettitean strobilus very similar in its thick conical 



FIG. 560. Williamsonia Bucklandi. (After Buckland; % nat. size.) 



receptacle to some of Wieland's species of Cycadeoidea, e.g. C. 

 dacolensis (fig. 528) : the armour of scales and megasporophylls 

 agrees exactly with that of some species of Williamsonia from 

 Yorkshire and with the flowers of Cycadeoidea. Though included in 

 the genus Williamsonia it would not be out of place in Cycadeoidea. 



Williamsonia scotica Seward. 



The type-specimen was found by Hugh Miller near Cromarty 

 (N.E. Scotland) and figured as a cone of peculiar form 5 ; it was 

 obtained from a limestone nodule probably derived from Upper 

 Jurassic rocks. The fossil is 11 cm. long and has a maximum 



1 Unger (50) A. p. 327. 2 Brongniart (49) A. p. 88. 



3 Saporta (91) p. 127, Pis. 238, 239. 



4 For other references, see Seward (04) B. p. 105. 



5 Miller (57) B. p. 480. For a detailed description and illustrations see Seward 

 (12). 



s. m 29 



