KIDSTON : YORKSHIRE CARBONIFEROUS FLORA. 83 
THE CARBONIFEROUS : FLORA OF 
YORKSHIRE. 
THIRD REPORT 
ON BEHALF OF THE YORKSHIRE FOSssiL FLORA COMMITTEE, 
1891. 
ROBERT KIDSTON, ERSE, PF G.S. 
IN presenting the Third Report of the Fossil Flora Committee, 
I have again the pleasure of recording the occurrence of several 
species not previously known to occur in the Yorkshire coal 
measures. 
These are:—Paleostachya elongata Presl sp.; Stach- 
annularia (?) northumbriana Kidston; Sphenopteris jacquoti 
Zeiller ; Sphen. marratit Kidston; Sphen. rotundifolia Andre ; 
Zeilleria delicatula Sternb. sp.; Eremopteris artemisiefolia 
Sternb. sp.; Veuropteris acuminata Schl. sp.; Bothrodendron 
punctatum L, & H.; Sigillaria polyploca Boulay; Sig. sad 
Brongt. ; Sig. reniformis Brongt.; Sig. levigata Brongt. ; and 
Sig. tenuis Achepohl. Of these, Paleostachya elongata, Sph. 
Jacquoti, and Sph. rotundifolia are new to Britain, and though 
I have previously met with ‚Sig. polyploca and Sig. tenuis in 
Britain, they are not included in any published list. With the 
exception of one record from Mr. Spencer, we are indebted to 
Mr. W. Hemingway for all the other records contained in this 
Report. 
It is much to be regretted that a greater number of the 
Yorkshire geologists do not take more interest in the collection 
of the coal plants. At present sinking operations are being 
carried on and new pits opened out in several localities. When 
