PENHALLOW] A REPORT ON FOSSIL PLANTS 305. 
river specimen. Unfortunately, Ward gives no detailed description of 
this specimen, a fault which equally applies to most of the other speci- 
mens dealt with, and one is obliged to rely wholly upon the figure which, 
fortunately, is most excellent and apparently of normal scale. Careful 
measurements of the figure give the following diagnosis :— 
Frond twice pinnate: pinne 1—1.2 cm. distant and inserted at 
angles of 55°—60°, more than 6.5 em. long and linear within that limit, 
11 mm. broad. Pinnules crowded, more or less contiguous but wholly 
distinct, attached by the full width of the broad base; not decurrent; 
6 mm. long and 3.5 mm. wide; oblong-linear and abruptly rounded at 
the broad apex; inserted at angles ranging from 67°—90°, with inter- 
mediate variations resulting from displacement; only the central mid- 
rib shown. 
A comparison of this diagnosis with that for the Skagit river speci- 
men will at once show that the only essential difference between tne 
two lies in the size of the pinnules—a difference which may well belong 
to different parts of the same frond. It is thus possible to conclude 
that our specimen is identical with Fontaine’s species. 
In the collection of 1905, number — comprises a number of 
linear fragments devoid of structure or surface markings, though some- 
times giving evidence of the presence of vascular bundles in the interior, 
and rarely showing a somewhat carbonized surface. They are always 
associated with fronds of Gleichenia gilbert-thompsoni, and there is 
every reason for regarding them as fragments of the stipes of that 
species. It is also found upon comparison, that they are identical with 
similar fragments contained in the collections of 1903 and designated as 
a In the preliminary report upon that material, these specimens. 
were referred to as “ representing portions from the rachis of a fern,” 
but owing to lack of sufficient evidence, regarded as “essentially of 
no value for stratigraphical purposes.” Close comparison with the 
remains of C. gilbert-thompsoni, not only confirms this conclusion, but 
enables us to draw the further inference that they are probably parts 
of the same plant. 
- Specimens 1436 of the 1905 collections, show a single instance of 
short fragments which are also to be referred in a similar way to some 
fern of which they are parts of the rachis, and the conclusion is justified 
that they are identical with 471 of 1903, and els of the 1905 col- 
lections. 
