Maryland Geological Survey 135 



Torreya Dicksoniana Heer 

 Torreya parvifoUa Heer 

 Taonurus sp., Knowlton 

 Zamites acutipennis Heer 

 Zamites arcticus Goeppert 

 Zamites hrevipennis Heer 

 Zamites torealis Heer 

 Zamites globuUferus Heer 

 Zamites speciosus Heer 



This rich flora is remarkable for the variety and abundance of its 

 ferns, possibly due to favorable conditions of humidity. No less than 

 40 species are differentiated by Professor Heer, the Gleichenias being 

 especially abundant in both species and individuals, often in an excellent 

 state of preservation. The Kome flora includes a supposed Marsilea, a 

 lycopod, 3 equiseta, 3 ginkgoales, 11 cycads, and 18 conifers. Eolirion is 

 recorded, Cyperacites, Poacites, and FascicuUtes are held to represent 

 monocotyledons, and the DicotyledourB are certainly represented in 

 Populus and Laurus {?). Only 3 of the Kome species are positively 

 identified in the Potomac flora, but there are a number of additional 

 types which are closely allied and probably a critical revision of the 

 Greenland material "would disclose still other similar features. 



The Aptiaist Stage 



The Texas Area 



The elaborately subdivided Comanche section of Texas and adjacent 



areas we owe chiefly to the labors of E. T. Hill, and the history of the 



study of the fossil plants which have been found in these beds has been 



given by Ward (loc. cit.). In the present connection interest centres 



in the Glen Rose beds of the Trinity, from which a small flora has been 



described by Fontaine and others. This flora contains the following 



species : 



AMetites Linkii (Roemer) Dunker 

 AMetites foliosus (Font.) Berry ? 

 AMetites ? sp., Fontaine 

 Brachyphyllum parceramosum Fontaine 

 Garpolithus Harveyi Fontaine 

 Carpolithus obovatus Fontaine 



