414 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [May 8, 



But as several acquisitions have been made since tlie above was 

 published, the following is offered as an amended hst, the new spe- 

 cies of which will be presently described. 



Acotyledonous or Non-flowering Plants. 

 Natural Orders. Genera and Species. 



2 M '^^T' ^* I ^Ixych. too imperfect to determine. 



3. Equisetaceae Equisetum Brodiei, n. sp. 



4. Filices Otopteris obtusa, Lindl. 4' Hiitt. 



acuminata, Lindl. ^ Hxitt. 



IMonocotyledonous Plants. 



5. Naiadaceae Naiadita lanceolata, £?'0£??e. 



.- obtusa, n. sp. 



petiolata, n. sp. 



Dicotyledonous Plants. 



6. Pinacese Cupressus ? latifolia, u. sp. 



7. Haloragese Hippurites ? (new). 



8. Umbelliferse ? Traces of, too imperfect to determine. 



9. Ericaceae.' Traces of, too imperfect to determine. 



Equisetum Brodiet, Buckman. Fertile frond simple, jointed ; 

 each joint inserted in a short sheath, crowned by from eight to 

 ten bluntish teeth. Fig;. 1. 



Fig.l. 



Fig. 2. 



yth of the natural size. Magnified about 6 times. 



The portion of the plant from which the above description is drawn 

 up presents four ribbed joints of a frond, the whole being 8 inches 

 long. The British species to which it bears the nearest approach is 

 the E. 'palustre, Linn. The whole frond is entirely simple, that is, 

 without lateral branches : hence it may almost be concluded that the 

 specimen is a remnant of an individual that was in fruit at the time 

 of its entombment ; as it is known that baiTcn fronds of these plants 

 have mostly lateral branches more or less developed. 



This interesting specimen was obtained from the insect limestone 



