SKETCH OF TRIASSIC FLORA. 81 
we can only conjecture that they represent coniferous forests which grew 
on the highlands at no great distance. Here, too, the remains of what 
seem to be sea-weeds of a peculiar character are found in considerable 
abundance. These show a striking resemblance to plants which have 
been obtained from the Umbral shales of Pennsylvania and which have 
been named Dendrophycus by Leo Lesquereux. The similarity is so great, 
that I have ventured to describe them as a species of this genus, and have 
called them Dendrophycus Triassicus. They will be found figured and 
described more in detail in another part of this memoir. 
At Hadley’s Falls, Sunderland, and, more rarely, at Boonton, the lay- 
ers of shale are frequently covered with fragments of twigs of a conifer 
which has been-sometimes referred to as a Voltzia, but, though the foliage 
is dimorphous, some of the twigs are clothed with closely appressed, scale- 
like leaves, while on others they are divergent, though always short and 
thick. One cone-bearing twig of this plant, found at Sunderland, shows 
distinctly that it is not a Voltzia, but is rather a Pachyphyllum. 
This plant is apparently the same with that which has been considered 
by Fontaine as identical with Cheirolepis Miinsteri of Schimper, but the 
cone referred to shows that it is not Cheirolepis, the scales being small and 
the exposed surfaces rhomboidal. At Milford, N. J., however, cones and 
detached scales are found which apparently do belong to Cheirolepis, and 
perhaps to C. Miinsteri. Numerous leaf-bearing twigs associated with these 
concs show that the foliage was symmetrical and even elegant in character. 
The branches spread in the same plane and, terminating in twigs pinnately 
arranged, regularly diminishing in length, present somewhat the appearance 
of Thuja or Moriconia, but the form of the leaf is quite different, being 
short and triangular, similar to that of some species of Pachyphyllum. 
MON XIv——6 
