J44 MESOZOIC FLORA.-; OF INrrED STATES. 



5291. The 13 specimens whose labels bear no date are numbered: 

 8625, 8626. 8629, 8630. 8631, 8632, 8633. 8634, 8635, 8636, 8640, 8642, 

 8642 (two specimens bear this number). It is proper to add that a large 

 proportion of the specimens from Hanover bear indeterminable impres- 

 sions and are not included in the abo^•e enumeration, which accounts 

 for missing numbers. 



Although this collection is rather small, yet, owing to the character 

 of the rock matrix, which preserves fairly well the plant material, a large 

 proportion of the fossils can l)e determined, a feature that unfortunately 

 is wanting in a good deal of the Maryland material. 



The following are the species that occur in these collections: 



Cladophlebis Browniana (Dunk.) Sew 1 specimen. 



Dryopteris angustipinnata (Font . ) Kn 22 specimens. 



Frenelopsis parceramosa Font 1 specimen. 



Glyptostrobus (Taxodium) ramosus Font. ? 2 specimens. 



Sphenolepidium Sternbergianiim densifolium Font . _ 1 specimen. 



The evidence of these plants goes to indicate that the strata yielding 

 them are of Arundel or Rappahannock age. 



KOSSill, PLANTS FKOM THK HOHAKD BROHX ESTATE. 



[PI. LXXX, No. 51.] 

 Nine of the specimens from this locality show determinable impres- 

 sions of plants. The rock material, with the exception of one specimen, is 

 an ash-gray clay, practically identical with that of most of the specimens 

 from the Hanover locality. The following species occur: 



Athrotaxopsis expansa Font. ? .3 specimens. 



Cladophlebis alata Font. ? 1 specimen. 



Dryopteris angustipinnata (Font.) Kn 7 specimens. 



Frenelopsis parceramosa Font. ? 1 specimen. 



This material is not sufficient to fix the age, but indicates that it is 

 Arundel or Rappahannock. 



KItSSII, I'l.AXTS FROM REVXOLDS'S ORE PIT. 



[Pi. LXXX, No. 29?] 

 The only specimen from this locality was collected by Lester F. 

 Ward on June 24, 1894. It was found in a pile of dark-reddish rocks that 

 had been taken out of the bottom of the mine. The specimen shows 

 several poorly preserved bits of ultimate twigs of a conifer that is probably 

 Sequoia Reichenbachi (Gein.) Heer. 



