in the Neighbourhood of Edinburgh. 175 
bipinnatis, pinnis ascendentibus, rapidé decrescentibus, pinnulis 
obliquis, tri-quadrilobis, lobis bi-trifidis, laciniis truncatis approxi- 
matis brevibus multinerviis, nervulis dichotomis.”— Histoire des 
Vegetaux Fossiles, tom. i. p. 175. 
But this list of ferns might be much increased. 
While by the luxuriance of their growth and their conse- 
quent numbers, these small ferns appear to have constituted 
one of the great divisions of the fossil flora of Burdiehouse, an- 
other set of plants not less numerous, comprise the doubtful 
tribe named Lycopodiaceze, which, by their vegetation and mode 
of increase, approach in character to the comparatively minute 
vegetables of recent growth, the Lycopodia, or even to the order 
of Cycadez of far larger dimensions, while by their reproductive 
organs they have some little affinity to the Coniferze. In the pre- 
sent instance, those peculiar structures of vegetable organization, 
which, separately considered, would seem of different character, 
but which have been conjointly regarded as the dissevered or- 
gans of the anomalous Lycopodiacez, appear in this limestone 
under circumstances of as great mystery as in other places, ex- 
cept that the cone, or one of the supposed organs of fructifica- 
tion, is too frequently in approximation, if not in absolute con- 
tact with a dichotomous stem, to sanction any other inference 
than that each is attributable to one and the same plant. Spe- 
cimens of the Cardiocarpon, or of that species of lenticular and 
cordiform, or reniform, fruit, equally assigned by M. Apoupur 
Bronenrarr to Lycopodiacee, have not to my knowledge been 
hitherto found in the limestone. 
With respect to such of the stems of Lycopodiacez as have 
been discovered, some of them may be referred to Lepidodendron 
selaginoides, (Plates 12 and 113 of Linprey and Hurron’s British 
Flora), to Li. obovatum, (plate 19 bis of the same work), and to 
L. Steinbergii (plate 112). Among the leaves which have been 
attributed, though doubted by others, to Lycopodiacez, are those 
of Lepidophyllum intermedium, (see Plate 43 of Liwpzzy and 
