402 Berry: Mesozoic FLORA OF ATLANTIC COASTAL PLAIN 
This species was originally described by Hollick (loc. cit.) and 
referred to the genus Caulinites, but was subsequently removed 
to the ferns because of its resemblance to the modern genus 
Onoclea, a resemblance that is close and not at all fanciful. Earlier 
figured forms of the same character were associated by Heer with 
his species Osmunda obergiana because they were found in the 
same beds with the fronds of this species although they were not 
found in organic union with the fronds. These fruits are much 
. more like those of the modern forms of Onoclea than they are 
like those of Osmunda, and they are identical with those which are 
the type of the present species to which the writer has referred 
them. 
The Long Island and Marthas Vineyard forms have these sori 
in a single row on each side of an axis, and some of the South 
Carolina specimens seem to have a similar arrangement, while 
others have them definitely in threes, one terminal and two lateral. 
This latter arrangement also prevails exclusively in the Greenland 
specimen and in similar material from the Magothy formation of 
Maryland. This variation is of minor importance and is men- 
tioned simply because it is believed that the grouping in threes is 
the normal arrangement, which has been obscured during fossiliza- 
tion in the instances where it is not clear. 
As here understood this species ranges hese the Atane beds of 
Greenland southward in the Magothy formation of Marthas Vine- 
yard, Long Island, and Maryland, to the Middendorf beds in 
South Carolina. 
OCCURRENCE: Severn River, Anne Arundel County, Md. 
GLEICHENIA SAUNDERSII Berry 
Gleichenia Saundersii Berry, Amer. Nat. 37: 679. f. 1-3. 1903. 
This small-pinnuled and coriaceous form was described orig- 
inally from the Magothy formation of New Jersey, where it is 
present both on Raritan Bay and along the Delaware River. It 
has been recently discovered in the Magothy formation of shea 
land, where at times the pinnules are rounded as shown in FIG. 
This species resembles Gleichenia gracilis Heer, differing in se 
more numerous veins and their habit of forking. (PLATE 18, 
BiG. 2; 3, 30:;) 
OCCURRENCE: Severn River, Anne Arundel County, Md. 
