718 APPENDIX IL 
half its length), The figure represents an emargination at apex, which exists in the spe- 
cimen, but is supposed to be accidental. 
Norr.—Figure 8, plate 18, represents the basal portion of a frond, having some re- 
semblance in its yenation to the above; yet from the angle of divergence from the midrib, 
and the actually narrower spaces, it may be a different species. This angle of divergence 
is about 30°, and the venation in this basal part of the frond is parallel with the margin. 
The spaces average 4 or 43 lines in length, and half a line in breadth (12 to half an inch). 
The frond must have been a large one. ‘The midrib is moderately stout, (14 lines broad 
below,) and very distinct in outline. About 13 inches of the petiole remain on the spe- 
cimen, 
GLOssOPTERIS ELONGATA (Dana).—Narrow elongate, lanceolate (7), attenuate below. 
Midrib rather stout, very distinct, veins make an angle of 60° or more with the midrib, 
elegantly reticulate, spaces short, average length + inch, and 9 or 10 in breadth to half 
an inch.—Plate 13, fig. 4, natural size. 
Newcastle. 
The specimen is but a part (the basal) of a frond. This portion is an inch broad 3 inches 
from the base. The reticulation is wholly different from that of the reteculwm, the 
spaces being very short. From figure 3, described above, it also differs widely in the 
angle of convergence in the frond below, and in having the venation retain at base its 
large angle with the midrib, instead of running parallel to the sides as the veins diverge 
from the petiole. 
GLossopTERis ? corpaTa (Dana).—Strongly cordate at base, with the lobes rounded. 
Midrib stout. Veins near base of frond reversed, diverging at a very large angle from 
the midrib, neatly reticulate, less so near margin and lines parallel ; spaces narrow, 
oblong, nearly 4 to a line in breadth.—Plate 18, fig. 5, natural size. 
District of [lawarra. 
The cordate base of this species was at first suspected, on account of its peculiarity, to 
be a result of fracture, but the direction of the venation proved this to be incorrect. The 
reticulation resembles that of the ampla, The midrib is a sixth of an inch broad. The 
fragment of the frond, constituting our specimen, is only the basal portion, and we cannot 
therefore give the length; the frond was probably quite broad for its length. 
_GLOSSOPTERIS LINEARIS (//’Coy).—A specimen apparently of this species was 
obtained in the Hlawarra coal beds. 
Glossopteris linearis, M’Coy, loc. cit., vol. xx., p. 151, pl. 9, figs. 5, 5 a. 
PHYLLOTHECA AUSTRALIS.—Plate 13, fig. 6, representing parts of six plants, on a 
single slab, natural size; fig. 1, plate 14, a circle of leaflets of same species. The 
specimen is in the collection of the Rev. C. P. N. Wilton of Newcastle, whose many 
kindnesses I have occasion to remember with gratitude. 
Newcastle. 
The general characters of this simple species are well shown in these figures. 
1. Its jointed structure. 
2. The sheaths encircling the stem at each node, and not properly a continuation of 
the node below, as in true Equiseta. 
