296 
which Mr Carruruers looks upon as the Carboniferous repre- 
sentative of Selaginella.* The history of this fossil is, very 
vague. It was brought to this country by a dealer, who had 
obtained it from the collection of a Baron Roget, where it 
had been for about thirty years. Nothing more seems to be 
known about the fossil, and it is not noticed by Sir JosrepH 
Hooxer in his “ Remarks on the Structure and Affinities of 
some Lepidostrobi,” in the second volume of the Memoirs of 
the Geological Survey. Other fruits have been figured by 
Bronenrart, Linpiey, Hurron, Bryney, Professor WILLIamson, 
and others. The latter was the first to point out the occur- 
rence of both macrospores and microspores in coal, in a paper 
read before the Geological Section of the British Association at 
York, but I am not aware that the paper has been printed 
except in abstract. In the Philosophical Transactions Professor 
Wituramson figures a Calamostachis Benneyana, which shows 
two kinds of spores. The microspores measure about -0031, 
and the macrospores occur as large as .01. However the 
imperfect specimens figured in Plate LIV, figs. 25 and 26, 
prevent any reliable comparison, and those figured in the 
strobilus are not sufficiently magnified to render comparison 
possible. Professor Wiitr1amson has also found some Lepidos- 
trobi, together with ferns and an articulate plant, which he 
believes to be Asterophyllites, and remains of Lepidodendra in 
some remarkable beds in Burntisland, Scotland. The beds 
occur in the upper part of the Calciferous Sandstones of the 
Burdiehouse Series, which in stratagraphical position correspond 
with lower portion of the English carboniferous Limestone. 
Professor Witi1amson states that the beds appear to have been 
patches of peat, which are now imbedded in masses of 
voleanic amygdaloid. The general aspect of longitudinal 
sections of these strobili is that common to Lepidostrobus. 
“They usually have a diameter of from less than half an 
inch to nearly an inch.”+ The fruit contains both macros- 
pores and microspores, the latter measuring about -0007 
* Geol. Mag., Vol. VI, p. 298. 
+ Phil. Trans., 1872, p. 294. 
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