Vol. 70.] FOSSIL FLORA OF THE KENT COALFIELD. 



67 



and the Middle Coal Measures 1769 feet in thickness. The flora 

 of the Transition Measures proved to he very scanty and badly 

 preserved, only nine species heing determined. 



The number of species (25) obtained from the Middle Coal 

 Measures was larger, although this flora, as a whole, was again 

 comparatively poor. 



Middle Coal Measure Flora of Ripple. 



Species. 



Frequency. 



X = rare. 

 X X = frequent. 

 XXX= abundant. 



Equisetales. 



Calam ites cisti Brongn 



C. varians Sternb 



Annularia radiata (Brongn.) 



A. sphenophylloides (Zenker) 



A. galioides (L. & H.) 



Calamocladus eqinsetiformis (Schioth.) 

 C. charxform is (Sternb.) 



Sphenophyllales. 



Splienophyllum cvneifolium (Sternb.), var. sasri- 



fragxfolivm Sternb. 



Pter.idospeeme.3E and Filicales. 



Neuropteris scheuchzeri Hoffm 



N. tenuifolia (Scbloth.) 



N. obliqua (Brongn.) 



Alethopteris decurrens (Art.) 



Mariopteris murica ta (Scbloth.) 



Pecoptevis miltoni (Art.) 



Eremopteris artemisiaefol ici (Stemb.) 



Cornncarpus acutus (L. & H.) 



Lycopodiales. 



Lepidodendron lycopodioides Sternb. 



L. ophiumis Brongn. 



L. dichotomum Sternb 



Lepidophyllum lanceolatum L. & H. 

 Lepidostrobvs variabilis L. & H. ... 



CORDAITALES. 



Cordaites principalis ? (Germ.) 



C. borassifolius (Sternb.) 



Dorycordaites palmaeformis (Gcepp.) 

 Cordaianthus pitcairnix (L. & H.).. 



X 

 X 

 XXX 

 X 

 X 

 X X 

 X 



X 



X 



XXX 



X X 



X 

 XXX 



X 

 XXX 

 XXX 



X 

 X 

 X 

 X 

 X 



X 



X X 



X 



X 



F 1 



