64 Mr. R. Kidston on British Carboniferous Lycopods. 
In Bothrodendron punctatum the fruit has evidently been 
borne in lateral cones, from which originate the two vertical 
rows of large Ulodendroid scars; and one marked feature 
which distinguishes the large scars of Bothrodendron from 
those of the other Ulodendroid Lycopods is that in Bothro- 
dendron the umbilicus of the large scar is eccentric, whereas 
in the Ulodendroid Stgillarie and Lepidodendra the umbili- 
cus is central or approximately so. 
In Bothrodendron minutifolium, Boulay, sp., the fruit is 
borne in long narrow cones at the terminations of the 
branches. The only specimen of the fruit of this genus 
which I have yet seen was collected by Mr. W. Hemingway 
at Monkton Main Colliery, near Barnsley, Yorkshire, in 
shale over the “ Barnsley Thick Coal.” This specimen he 
has kindly forwarded to me for examination. ‘The cone is 
attached to a stem which still bears the foliage of the species. 
Unfortunately the cone is imperfect in its upper part, so its 
full length cannot be determined. The portion preserved is 
34 inches long and at its thickest part rather over $ inch 
wide. The central axis in the compressed cone is seen to 
give off at right angles a number of transverse bars, which 
probably represent the basal portions of the bracts that bore 
the sporangia. Their leafy extension rises up at almost nght 
angles to their basal portion, and is therefore nearly parallel 
with the axis. These bracts are closely placed, as many as 
eleven being contained on the axis in the space of half an 
inch. The specimen is shown nat. size in Pl. IV. fig. 6. 
I have received a very interesting specimen of a portion of a 
stem of Bothrodendron minutifolium from Mr. Landsborough. 
The lower part of this specimen is decorticated and shows 
the subepidermal leaf-scars. ‘These are not simple as sup- 
posed *, but when well preserved are seen to consist of two 
linear elongated elevations, which are frequently connected in 
the centre, as shown in figs. 5 and 56. ‘They are very 
similar to those of Sigillaria. 
The foliage of B. minutifolium and punctatum is very 
small and the ultimate ramifications of the dichotomously 
divided branches have great similarity to those of recent 
Lycopods, as has been pointed out by Zeiller. Their syste- 
matic position is, however, probably intermediate between 
Lepidodendron and Sigillaria. 
The genus Bothrodendron is not, however, restricted to the 
Coal-measures, for I have received from various localities in 
the Calciferous-Sandstone series specimens of a species of 
this genus, which I here describe. 
* Zeiller, J. c. p. 181. 
