MARYLAND GEOLOGICAL SURVEY 217 
PTERIDOPR Ys 
Order FILICALES. 
Family OSMUNDACEAE. 
Genus OSMUNDA Linné. 
OSMUNDA sp. ? 
Plate LXVII, Fig. 3. 
Description.—This specimen is one of the many masses of rootlets, at- 
tached to rhizomes, which occur in abundance in a black clay at the base 
of the bluff at Tally Point. Dr. L M. Underwood, of Columbia Uni- 
versity, to whom they were submitted, decided unhesitatingly that they 
were the rootlets and rhizomes of some fern, most probably an Osmunda. 
It was found impossible to separate them from the matrix without break- 
ing, either when wet or dry, hence they are shown in the figure exactly 
as collected and subsequently preserved. 
Occurrence.—TaLpot FORMATION. Tolly Point (Bay Ridge) Anne 
Arundel County. 
Collections Maryland Geological Survey. 
SPERMATOPHYTA. 
CLass GYMNOSPERMAE. 
Order CONIFERALES. 
Family PINACEAE. 
Genus PINUS Linne, 
- Pinus ecuinata Mill. 
Plate LXVII, Fig. 1. 
Pinus echinata Mill, 1768, Gard. Dict. ed. 8, No. 12. 
: Description—Cones of this species occur in abundance in the swamp 
debris at Bodkin Point. They are generally more or less flattened and 
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