Maryland Geological Sukvey 213 



discussed. It is contained in initial Upper Cretaceous deposits termed 



the Middendorf arkose member, that are partially contemporaneous with 



the deposits of the Black Creek formation which extends into the state 



from the North Carolina area and which also contains fossil plants. The 



geology and floras have recently been described in detail by the writer.' 



The floras clearly constitute a single floral unit which is made up of the 



following species : 



Acaciaphyllites grevilleoides Berry 

 Algites americana Berry 

 Andromeda euphorbiophylloides Berry 

 Andromeda grandifolia Berry 

 Andromeda novm-ccrsarew Hollick 

 Andromeda parlatorii Heer 

 Araucaria bladenensis Berry 

 Araucaria darlingtonensis Berry 

 Araucaria jeffreyi Berry 

 Arundo groenlandica Heer 

 Brachyphyllum macrocarpum Newberry 

 Gwsalpinia wAddendorfensis Berry 

 Calycites middendorfensis Berry 

 Carex clarkii Berry 

 Celastrophyllum carolinetisis Berry 

 Celastrophyllum crenatum Heer 

 Celastrophyllum elegans Berry 

 Cephalotaxospermum carolinianum Berry 

 Cinnamomum middendorfensis Berry 

 Cinnamomum newoerryi Berry 

 Citrophyllum aligerum (Lesquereux) Berry 

 Crotonophyllum pandurwformis Berry 

 Cunninghamites elegans (Corda) Endlicher 

 Dewalquea smithi Berry 

 Diospyros primava Heer 

 Diospyros rotundifolia Lesquereux 

 Eucalyptus angusta Velenovsky 

 Eucalyptus geinitzi (Heer) Heer 

 Eucalyptus wardiana Berry? 

 Ficus atavina Heer 

 Ficus celtifolius Berry 

 Ficus crassipes Heer 

 Ficus krausiana Heer 

 Ficus stephensoni Berry 

 Hamamelites ? cordatus Lesquereux 



1 Berry, E. W., U. S. Geol. Survey Brof. Paper 84, 1914, pp. 5-98, pis. i-xiv. 



