YORKSHIRE NATURALISTS UNION. 97 
THE CARBONIFEROUS FLORA OF 
YORKSHIRE. 
FOURTH REPORT 
ON BEHALF OF THE YORKSHIRE FOSSIL. FLORA COMMITTEE 
FOR 1892. 
ROBERT KIDSTON FRSE, FGS 
The fourth Report ofthe Yorkshire Fossil Flora Committee, 
which I have now the pleasure of presenting, contains records 
of eleven species which are new to the Yorkshire Coal Field, 
and one variety of a previously recorded species. 
These are,— Zgudsełum hemingwayi, Sphenopteris dilatata, 
bhenopteris furcata, Hymenotheca dathei (recorded in first 
Report as Sphenopteris sp., allied to furcata), Lepidodendron 
lycopodioides, Sigillaria rugosa, Sigillaria elongata, Dorycordaites 
palmeformis, Cardiocarpus cordai, Cardiocarpus Ruitans, Car- 
Polithus ovoideus, and Calamitina varians var. insignis. 
Lepidodendron dichotomum, previously recorded, must be 
deleted from the Yorkshire Fossil Flora, as I now find that all 
the stems placed under that name in the first Report belong to 
Lepidodendron lycopodioides. — Odontopteris binervosa Achep. 
must also be removed from the list of Yorkshire species, as it 
is now found to be only the upper portion of the frond or 
pinnæ of Neuropteris obligua Brongt. sp. 
With the exception of three records, one each from Messrs. 
Davis, Spencer, and Gelder, all the others in the present Report 
result from the labours of Mr. Hemingway. In the previous 
Reports I have referred to the opportunities for collecting fossil 
plants which are being allowed to slip, and in this one the same 
remark must be again made. From an interview I had this 
G 
