35 
now to record, Megaphyton, Bothrodendron, Ulodendron, 
&c, have not this character, but have one very singular, 
and peculiar to the coal flora, — that of producing deciduous 
branches or gigantic leaves, which did not grow all round 
the stem, as in the generality of plants, but in regular 
super-position up each side, leaving a series of large scars, 
in shape like a horse shoe, to show the point of their attach- 
ment. The only species of Megaphyton found in Yorkshire 
is the distans, from the sandstone at Rawmarsh, which has 
also occurred at Newcastle. Bothrodendron punctatum has 
been found in some of the sandstone quarries near Wakefield, 
as well as in the shale, together with portions of the cone- 
like bodies, supposed to have grown from the obliquely oval 
scars or cavities on the stem. Of the genus Ulodendron, 
which, in many respects, resembles the preceding in the 
arrangement of a series of circular disks up each side of 
the old stem, we have the two most common species, 
Ulodendron majus and minus, from Low Moor, Went- 
worth, and Huddersfield. Were it not for this remarkable 
arrangement of the scars and disks, these stems would bear 
the closest resemblance to those of tree ferns. 
From the Ferns, whose real nature was evident, we next 
take the Lycopodiaceae of Lindley and Hutton, so named 
from the supposition that the plants included under it were 
related to the Lycopodiums, or club mosses of the present 
day. That a few of them might be so is probable, but that 
the majority of them did, it is as improbable. Two species, 
the Lycopodites falcatus and Williamsonis, occur in the 
Oolitic shale near Scarbro', and are very possibly all which 
really bore any affinity to the above. The genus' Lepidoden- 
dron contains a great many species which were supposed 
to be gigantic representatives of this family, and next to 
Calamites and Sigillaria, are the most abundant fossil 
plants in the coal formation. The most splendid species, 
vol. in. c 2 
