FONTAINE.] THE EMMONS COLLECTION. 985 
that shows about 6 em. of its length, with margins well preserved, but 
not possessing the basal and terminal portions. This is probably 
Emmons’s type specimen. It is without doubt Pseudodaneopsis reticu- 
lata. It shows all the characteristic features of the Virginia plant,’ 
both in nervation and in the general character of the pinnules. These 
features are strongly marked and not common. 
PSEUDODANZOPSIS OBLIQUA (Emmons) Fontaine. 
1856. Strangerites obliquus Emm.: Geological Report of the Midland Counties of North 
Carolina, p. 325. 
1857. Strangerites obliquus Emm.: American Geology, Pt. VI, p. 121, fig. 89 on p. 122. 
1883. Pseudodanzopsis nervosa Font.: Older Mesozoic Flora of Virginia, Mon. U. 8. 
; Geol. Survey, Vol. VI, pp. 61, 116, pl. xxxi, figs. 1, 2; pl. liv, fig. 3. 
Emmons, in American Geology, Pt. VI, pp. 121, 122, fig 89, gives a 
description of the pinnule of a large fern which, from its resemblance 
to Pseudodanopsis nervosa, I was led to regard as identical with it, and 
so stated in Mon. U. S. Geol. Survey, Vol. VI, p. 116. The original of 
Emmons’s figure was not seen in his collection, but a fragment of a 
large pinnule of a similar plant was found. This shows a portion of its 
margin with the characteristic marginal anastomosis of the nerves seen 
in the Virginia form. This, with the character of the pinnule and its 
strong, rarely branching, remote nerves, shows that without doubt the 
plant does occur in the North Carolina beds, and that probably the 
form described by Emmons is identical with it. It seems to have 
been rare, as only the fragment mentioned was seen. The nerves in 
Emmons’s figured specimen owe their straggling character to distor- 
tion from maceration and pressure. 
Genus LONCHOPTERIS Brongniart. 
LoncHOPTERIS OBLONGA (Emmons) Fontaine.’ 
Pl. XXXVIIT, Figs. 8-10. 
Emmons gives’ a representation of a fern with reticulate nervation, 
which he names Acrostichites oblongus. Fig. 8 is a good representation 
of one of the specimens in the collection, which, however, is now at 
least more fragmentary than the figure represents it to be. It is one 
of the smaller forms of this plant. In preparing Mon. U. 8. Geol. 
Survey, Vol. VI, I was led, from an inspection of this figure, to think 
that this species is not an Acrostichites, but a Lonchopteris, as it 
resembles LZ. wirginiensis of the Older Mesozoic of Virginia. I was 
confirmed in this view after examining the considerable number of 
specimens of this plant that occur in the collection of Williams College. 
1Mon. U.S. Geol. Survey, Vol. VI, pp. 59, 60, pl. xxx, figs. 1-4! 
2For synonymy, see supra, p. 239. 
3 American Geology, Pt. VI, pl. iv, figs. 6, 8. 
