544 MESOZOIC FLORAS OF UNITED 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 above 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 be 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 Sternbergianum densif olium Font 1 specimen. 



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

 them are of Arundel or Rappahannock age. 



FOSSIL PLAMS FKOM THE HOWARD BROWN 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. 1 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. 



FOSSIL PliANTS FROM REYNOLDS'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. 



