145 
It is on account of the method of branching, and the presence 
of these articulations, that I think the specimen may possibly be 
a form of /renelopsis. In such a case, it is much more like some 
of the American species than the European, for instance, 
Ff. ramosissima, Fontaine,* of the Potomac Younger Mesozoic 
Flora. Touching the disappearance, or faint preservation, of the 
articulations, it would appear from Fontaine’s remarks and 
illustrations that when the epidermis is lost, and the plant 
decorticated, the articulating scars become more or less invisible 
also, and it is in this condition that I take our specimen to be. 
The second specimen appears to be the terminal portion of a 
branch. 
EXPLANATION OF THE FIGURES. 
Puate IV. 
Fig. 
. Teniopteris (Oleandridium ?), sp. ind. A Teniopterid frond, possibly 
referable to Oleandridium and near O. tenuinerve, Brauns. 
. Anthrophyopsis? sp. ind. An imperfect frond, with a fish-tail 
proximal end, and a Glossopterid net venation, but no trace of a 
mid-rib. 
= 
to 
PLATE V. 
. Teniopteris (Oleandridium ?) jiuctuans, Eth. fil. Frond showing 
crumpled surface and thick mid-rib. 
Proximal portion twice enlarged, showing the widely separated 
secondary veins furcate near the mid-rib. 
Part of the upper portion of the frond much enlarged, showing the 
secondary veins furcate near the centre, or furcate in clusters near 
the margin. 
—_ 
bo 
ad 
PiatEe VI. 
. Alethopteris, sp. ind. Portion of a pinna, showing short sub-falcate, 
curved, upwardly-directed, and touching segments. 
Four of the segments, twice enlarged, exhibiting the once furcate 
secondary veins. 
Frenelopsis (7), sp. ind. Portion of a stem showing the method of 
branching. 
The reverse of fig. 3. 
The lower portion of fig. 3, twice enlarged, showing the inosculating 
striz on the main stem, and pitted surface of the branches. 
A specimen believed to be the terminal branches of this plant. 
— 
to 
OF = Sue ov 
* Mon. U.S. (Powell’s) Geol. Survey, 1889, XV., t. 95, 96, 99, &ec. 
