482 MESOZOIC FLORAS OF UNITED STATES. 



than those figured in Monograph XV, and one of these is figured in PL 

 CIX, Fig. 1, to iUustrate more fully the character of the plant. It is 

 probable that an excavation in this clay and a more thorough collection 

 would give more good specimens of this plant, which as yet is known only 

 by portions of its leaves. 



B'OSSIL PLANTS FKOM THE BANK NEAK BKOOKE. 



The locality designated ''Bank near Brooke" (see Monograph XV, 

 p. 21) represents strata of the Aquia Creek horizon or Brooke beds of the 

 Lower Potomac, that have been fully described. 



The following collections have been made from this locality since the 

 appearance of Monograph XV : 



1. A small collection hj Lester F. Ward on June 20, 1891. 



2. Another small collection by Lester F. Ward and David White on May 4, 1892. 



3. Two slabs of considerable size containing numerous impressions of leaves 

 and some well-preserved Unio shells were found so labeled without indication of 

 collector or date. There is a memorandum in the register suggesting that they 

 may have been collected by Fontaine, Knowlton, and Ward on the occasion of their 

 visit to this place Jime 12-14, 1886. 



4. A collection made for the Maryland State Geological Sui'vey, not dated, but 

 bearing the numbers 8.304-8.313 of that survej^ 



5. Thi'ee specimens collected for the same survey, bearing its number 8314 and 

 the words: "Aquia Creek Bridge, Va., Loc. from L. F. Ward," which appear to be 

 from the same locality, the ' rock material being the same and the same species 

 occurmg in it. 



From all these sources the following species, with the number of 

 specimens of each, are found: 



Baieropsis f oliosa Font : 1 specimen. 



Baieropsis pluripartita Font . 6 specimens. 



Leptostrobus foliosus Font ._._.:.... 1 specimen. 



Leptostrobus longif olius Font_ 4 specimens. 



Menispermites virgmiensis Font. . _■ 3 specimens. 



Sapindopsis brevifolia Font 2 specimens. 



Sapindopsis magnifolia Font - 1 specimen. 



Sapmdopsis variabilis Font 2 specimens. 



As all of these species were previously known from this locality, and 

 none of the specimens add anything to our knowledge of them, no special 

 description of them seems necessary. 



