DESCRIPTION OF SPECIES. 43 
This fern is without doubt a species of the same genus as that figured 
and described by Heer (Flora Arctica, Vol. VII, Pl. XLVIII, figs. 12, 13). 
Whether that be a Phegopteris or not is not certain, but from the large 
number of plants common to the New Jersey and Greenland floras we may 
strongly suspect that the species is the same. Further collections will 
doubtless solve the question. 
Locality: Woodbridge. 
OPHIOGLOSSUM GRANULATUM Heer. 
Pl. [X, figs. 11-13. 
Ophioglossum granulatum Heer, Fl. Foss. Arct., Vol. VII, p. 8, Pl. LVI, figs. 8, 9. 
Professor Heer has described and figured a peculiar fossil which he 
regards as the fertile stipe of a fern and compares with the fertile frond of 
Ophioglossum vulgatum. Of this organism numerous examples have been 
found in the Amboy Clays, two of which are now figured. There can be 
no mistake about the identity of the plant, but as to its true character there 
may be great differences of opinion. Most of the specimens show at the 
base of an ament-like fruit spike one or more slender linear leaves or 
bracts, which evidently spring from the same stem. These leaves are 
sometimes as long as the fruit spike or longer, and to me they seem like 
the male ament of a conifer rather than the fruit of a fern. The granules 
with which the axis of the fruit spike is invested are arranged spirally about 
it, and so far as has been observed there is nothing by which it can be 
decided whether they are sporangia or pollen cases. Doubtless more will 
be learned about these singular objects, but they are interesting as being 
the fruit of some of the plants which are common to the Amboy Clays 
and the Cretaceous beds of Atane, Greenland. 
