Vice-President’s Address. 231 
of these may be only Aphlebia, which were attached to the 
rachis of other species; but others, such as &. Goldenbergit, 
Weiss, and 2. spinuloswm, Lesqx., evidently form autonomous 
species. 
Tree ferns, though they first appear in the Lower Coal- 
Measures, here attain their maximum development, and are 
represented by several species. 
Calamites are much less frequent than in the Middle 
and Lower Coal-Measures, and appear to be dying out. 
Annularia is represented by Annularia stellata, Schl. sp., 
and Annularia sphenophylloides, Zenker sp., both of which 
are common, especially the latter. 
Sphenophyllum emarginatum, Brongt., is very common, 
and with the exception of Sphenophyllwum majus, Bronn., 
which is very rare, is the only member of the genus met 
with in these rocks. 
The Lepidodendra, like the Calamites, become rare. Some 
of the more prevalent and common genera of the Middle and 
Lower Coal-Measures are clearly dying out in the Upper 
Coal-Measures, and though still represented by several 
species, in the majority of cases they are rare. Lepido- 
dendron lanceolatum, Lesqx., and Lepidodendron Wortheni, 
Lesqx., are the two most common, but neither form a feature 
of the flora. 
Lepidophloios has all but disappeared. I have only seen 
one imperfectly preserved specimen in the Upper Coal- 
Measures, which, unfortunately, I could not determine. The 
genus Bothrodendron has evidently died out. 
Sigularia, though still represented by several species, 
possesses only one which is common — Sigillaria tesselata, 
Bronet., and the form that oceurs is scarcely typical of the 
species. Only one species—Sigillaria M\Murtrier, Kidston 
—seems to be peculiar to the series. 
A single specimen of Lycopodites elongatus, Gold., has been 
collected from this horizon by Mr Hemingway. 
The Cordaites are represented by only two species, one of 
which—Cordaites angulosostriatus, Grand’ Kury—is common, 
and may be regarded as a typical plant for this horizon, Poa- 
cordaites microstachys, Gold., also occurs, but is infrequent. 
VOL. XI, Q 
