FONTAINE, ] THE EMMONS COLLECTION. 299 
specimen is much distorted by pressure, so that it does not appear so 
distinct as Emmons has represented. The stem to which the leaflets 
were attached is not so continuous or well defined as it is given in the 
figure. It is broken up, and, in places, pressed down into the sandy 
material. None of the leaflets are so distinctly outlined and entire as 
he makes some of them to be. The striation that he gives on them is 
not shown in the original, for the rock is too coarse in texture to show 
any such feature. The leaflets are, in fact, so distorted from the dou- 
bling down of their margins into the rock that the true character of 
the plant could hardly be made out from this specimen. Fortunately 
the imprint given in Pl. XLII, Fig. 5, bas one leaflet, the lower right- 
hand one, that possesses still enough of its original character to give 
a good idea of it. All the others on this specimen are imperfect. 
Even this best-preserved leaflet has the lower portion of its base 
doubled under and hidden in the rock, and the outer or lower margin 
is also slightly bent down into the rock. Still, from this and other 
leaflets seen, a good deal of the true nature of the fossil can be made 
out. The character seems to be as follows: 
The stem is rather stout. The leaflets had a rather thick, leathery 
texture, as they leave a black, shining film. On this specimen they are 
nearly opposite in position. The exact mode of attachment, owing to 
distortion, can not certainly be made out, but they appear to be inserted 
on the upper face of the stem, slightly within its margin. The attach- 
ment is made by the lower portion of the base of the leaflet, which is 
prolonged down the stem, making the leaflet decurrent. The upper 
portion of the base is larger and in the form of a rounded ear, which 
is free and curves more or less freely to the stem. The leaflets are 
subrhombic and slightly faleate in form, with obtuse tips. They were 
about 2 cm. long from the attachment to their tips, and 1 cm., or alittle 
more, wide. The nerves are rather strong. They radiate from the 
point of attachmentand fork repeatedly. The branches curve strongly 
away fromthe central line of the leaflets, so that they meet its margins 
under a large angle. There is no true midrib, but the central nerve 
is stronger than the others and splits up into branches, which, in turn, 
fork several times. 
This plant may be afern. It is certainly not Albertia. It is much 
like Otozamites Beanw (Cyclopteris Beanit of Lindley and Hutton), 
being near the smaller form given in Foss. Flor. of Great Britain, 
Vol. I, pl. xliv. 
Pl. XLII, Fig. 5, gives the form with attached leaflets, one of which 
is better preserved than any in Emmons’s figure, and Fig. 6 is a par- 
tial restoration of this, enlarged two diameters to show the nervation 
and probable original character of the leaflets. 
