ARBER : FOSSIL FLORA OF SOUTH YORKSHIRE COALFIELD. 133- 
Annularia [plate 20], Trigonocarpus [plate 21], Calamites [plates 
25, 26], and Lepidodendron [plate 50]. Several of the specimens 
figured were contained in ironstone nodules. No detailed in- 
formation is, however, given as to the precise locality, seam or 
horizon. 
In 1903, Mr. Wedd^ recorded Neuropteris sp., and Lepidoden- 
dron sp. from the Black Shale Coal at Denby Colliery, and Calamites 
sp. from the same coal at Heage Colliery. 
In 1907, Mr. Horwood^ of Leicester, published a short paper, 
in which he gives a list of all the specimens known from this 
coalfield with a bibliography. He records the following plants, 
whose exact position in the Coal Measures has been ascertained, 
some of which he figures. 
(1) From the Top Hard Coal at Pleasley Colliery. 
Sphenopteris obtusiloha, Brongn. 
S. artemisicefolioides, Crepin. 
Dactylotheca plumosa (Artis). 
Mariopteris muricata (Schloth.). 
Aleihopteris lonchitica (Schloth.). 
Odontopteris sp. 
Neuropteris heterophylla, Brongn. 
N. tenui folia, Schloth. 
N. gigantea, Stemb. 
N. sp. 
Calamites sp. 
Calamocladus equisetiformis (Schloth.). 
Annularia galioides (L. and H.). 
A. radiata, Brongn. 
Lepidodendron ophiurus, Brongn. 
L. obovatum, Sternb. 
L. sp. 
Lepidostrobus ophiurus, Brongn. 
Lepidostrohus variabilis, L. and H. 
Lepidophyllum ma jus, Brongn. 
Sigillaria mamillaris, Brongn. 
1 Wedd (03), p. 12. 
2 Horwood (07). 
