229 



MOSSES OF POOL, YORKSHIRE. 



GEORGE B. SAVERY, 

 Silverton, Exeter; formerly of Pool, Yorkshire. 



The district from which the following- mosses were collected 

 comprises the Wharfe Valley from Farnley to Harewood, the 

 Washburn Valley as far as Norwood, and the higher ground 

 round Almias Cliff and Adel Bog. The mosses were gathered 

 at various times from 1899 to 1901. 



The whole district is on the Millstone Grit, and is unfor- 

 tunately much polluted by smoke : the result of this has been to 

 practically annihilate the more delicate mosses. For example, 

 the genus Weissia Ehrh. is totally wanting, and Orthotrichum is 

 only represented by O. diaphanum and a few stunted specimens 

 of O. affine. The old moss-flora of Adel Bog seems to be going 

 in the same way as the Phanerogams have gone. Bryum 

 Duvalii Voit. is the only interesting discovery there. Almias 

 Cliff still retains a few montane forms, but in a stunted condition. 

 A fair number of moorland mosses were collected from the peat 

 at Norwood. From the Wharfe the most interesting moss was 

 Fissidens mfulus. Previous records for this district are very 

 few, but of them only one or two have been confirmed. The 

 majority of the mosses have been collected by my brother, 

 Mr. F. Savery. 



The more critical species have been kindly named for me by 

 various more experienced bryologists. The names used are 

 those of Dr. Braithwaite's 'British Moss Flora,' but, as that 

 work is not completed, the remainder are taken from Mr. C. P. 

 Hobkirk's ' Synopsis,' Edition II. 

 Georgia pellucida (L.) Rabenh. Creskeld. 

 Catharinea undulata (Web.) Mohr. Common. 

 Poly trie hum aloides Hedw. Common. 



Polytrichum piliferum Schreb. Leathley and Lindley Wood. 

 Polytrichum juniperinum Willd. Almias Cliff. 

 Polytrichum commune L. Common but sterile. 

 Fissidens viridulus (Swartz.) Wahl. Castley. 

 Fissidens incurvus Starke. Castley and Leathley. 

 Fissidens bryoides (L.) Hedw. Common. 

 Fissidens fontanus Schimp. Wharfe bank at Castle} (teste 

 C. P. Hobkirk). 



1902 July 1. 



