MARYLAND GEOLOGICAL SURVEY 237 
species of Bumelia, especially B. lanuginosa Pers. and B. monticola 
Buckl., from either of which could be selected specimens which would 
match them exactly in outline, but the absence of definite nervation 
renders accurate comparison impossible. 
Occurrence.—SUNDERLAND ForMATION. Near the headwaters of Is- 
land Creek, Calvert County. 
Collections.—Maryland Geological Survey. 
UNDETERMINED. 
In addition to the genera and species determined and described there 
remain about a dozen species of small seeds which could not be identified 
except as belonging in certain families or orders and hence have not been 
included. Among these were quantities of a peculiar moniliform object 
which at first were mistaken for seeds and then for small fungoid growths. 
Careful examination showed that they could not be referred to either of 
these and their close resemblance to galls suggested that they might be 
of insect origin, similar to such as are found on the leaves of the living 
Bald Cypress (Taxrodium distichum (L.) L. C. Rich). Specimens were 
sent to Dr. L. O. Howard, of the Division of Entomology, U. S. Dept. 
Agriculture, who kindly examined them and from whose report the fol- 
lowing is quoted: “ The little swellings on the leaf of the Bald Cypress 
appear to be the work of one of the gall gnats, a Cecidomyiid. Those 
from the Pleistocene swamp deposits of Maryland appear to be the 
same. . . . The material was badly crushed when received. Still I do 
not know that any more accurate determination could be made of the ma- 
terial in its best condition.” 
