2 Seward, Jm-assic Plants in the MaticJiester Mnsenm. 



drawings in the " Fossil Flora!' These figured s[)ccimens 

 form part of the Wilh'amson Collection, and are usually 

 referred to b}- Lindley and Hutton as being " in the 

 collection of Mr. Williamson." 



In addition to these specimens, the Manchester Museum 

 possesses numerous examples of Jurassic plants which 

 throw fresh light on certain species included in the rich 

 Flora from the Oolite rocks of the Yorkshire Coast. The 

 following notes deal with the plants figured by Lindley 

 and Hutton, and include descriptions of some other 

 specimens worthy of mention as affording important data 

 towards a more complete knowledge of Jurassic vegetation. 

 A list is added of Inferior Oolite plants included in the 

 Museum collections ; many of the specimens are also 

 referred to in a forthcoming British Museum Catalogue of 

 Jura.^sic plants. The present communication deals only 

 with Inferior Oolite species from the Gristhorpe plant-bed 

 and other localities on the Yorkshire coast ; it is proposed 

 to give an account of other Jurassic plants in the Museum 

 in a second paper. 



I. Specimens figured in the "'■ Fossil Flora!' 

 Type specimen of pi. i68. Sphenopteris arguta L. & H. 

 = Conioptcris hyinenophylloides (Brongniart'), 



(No. 49 in the Manchester collection). 

 Type specimen of pi. 169. Pccopteris dentate L. & H. 



= I'odiies Williavisoni (Brongn.), (Nos. 44 and 45). 

 Type specimen of pi. 155. Otopteris cuneata L. & H. 

 = Sagenopteris Phtllipsi (Brongn.), var. cuneata 



(No. 57). 

 Type specimen of pi. 92. Tceniopteris major L. & H. 

 = Tceniopteris major L. & H. (No. 13). 



^ An author's name is enclosed in parentheses when the generic 

 designation has been altered since the species was first described ; e.g. 

 Brongniart first described this species as Sphenopteris kymenophylloides. 



