4 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
These remains were found in association with a small fresh-water 
fauna at an altitude of 160 meters at the locality cited below. The 
species is decribed as new and named for the collector. It is possible 
that it may be the same as a still existing species, but as practically 
no systematic work has been done on the American Charas since the 
death of T. F. Allen, and I do not have adequate material of recent 
species for comparison, no other method of treatment is possible. 
Although a few species 
have been described, prac- 
tically nothing has been 
done on the fossil Charas of 
America, although they are 
known to be abundant at 
certain horizons, and their 
abundance when present in 
d a deposit, their wide geo- 
b graphical range and minute 
Fig. 1.—OOGONIUM OF CHARA ‘WOODRINGI: ad, APICAL but clearly differentiated 
VIEW; b, PROFILE VIEW; Cc, CROSS SECTION OF A SINGLE specific expression tend to 
CELL, ALL GREATLY ENLARGED; d, BASAL VIEW. make them excellent hori- 
zon markers as Reid and Groves? have lately shown in an account 
of the Eocene forms from southern England. 
Occurrence.—Miocene (station 7555). 
Class LEPTOSPORANGIATAE. 
Order POLYPODIALES. 
Family POLYPODIACEAE. 
Genus GYMNOGRAMME (of authors). 
GYMNOGRAMME WOODRINGI, new species. 
Plate 1, figs. 1-4. 
In absence of more perfect and fertile material it is impossible to 
be sure of the generic position of this fern and I have therefore 
referred it to the genus Gymnogramme of Hooker and Baker with 
the clear recognition that this genus is a composite. This type 
of sterile pinnule has been referred to Acrostichum, Lomariopsis, 
Blechnum, etc. The species is named for the collector, Dr. W. P. 
Woodring. The frond appears to have been pinnate and of few 
pinnules. The pinnules are lanceolate or ovate-lanceolate in form, 
3 Reid, C., and Groves, J., Quart. Journ. Geol. Soc. Lond., vol. 77, pp. 175-192, 1921. 
4On this point see umderwonds L. M., Torrey Bot. Club Bull., vol. 29, pp. 617-634, 1902, and the 
subsequent systematic publications of W. R. Maxon. 
