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YORKSHIRE BRYOLOGICAL COMMITTEE: 



REPORT FOR 1899. 



J. J. MARSHALL, 



Beverley; Hon. Secretary, Yorkshire Bryological Committee. 



A meeting of the Yorkshire Bryological Committee — one of 

 the Committees of Research of the Yorkshire Naturalists' Union 

 — was held at York, on the 5th of October, and the following- 

 report was drawn up of the work done by the various members. 



The extreme dryness of the summer was prejudicial to the 

 growth of Mosses and Hepaticae in the lowlands, as well as on 

 the hills, during the present year. The drought prevailed during 

 an abnormally long period, and much affected the proper growth 

 of these moisture-loving plants. 



Notwithstanding this extraordinary summer season, some 

 very interesting mosses and hepatics have been found. 



Mr. William Ingham, B.A., of York, has found the following 

 species and varieties during' the year: — 

 Sphagnum cuspidatum Ehr. 



Vars. plutnosutn Nees and serrulatum Schleich. At Wear- 

 head, Durham. 



Var. Torreyi (Sulf.) Braithw. On the H'ambleton Hills, 



Kilburn. Dr. Braithwaite says this is the second locality 



in Britain for this variety. 

 Pleuridium axillare (Dicks.) Lindb. 



Var. strictum Dicks. At Terrington, during the Y.N.U. 



excursion. This has not hitherto been found outside 



Scotland. 



Seligeria calcarea (Dicks.) B.&S. and 



Seligeria paucifolia (Dicks.) Carruth. Both in Danes' Dyke, 



Flamborough, a new locality for these species, by Messrs. 



W. Ingham and J. J. Marshall. 

 Dichodontium pellucidum (L.) Schpr. 



Vars. compaction Schpr. and fagimontanum Brid. Both 



by a stream at Wearhead, Durham. 

 Tortula mutica Ldb. By the River Foss, York. 

 Mollia crispula (Bruch) Lindb. In the Jackdaw Crag Quarry, 



Tadcaster, 21st January 1898; a new moss for Yorkshire, 



verified by Dr. Braithwaite. 

 Mollia aeruginosa (Sw.) Lindb. 



Var. intermedia Jack. By a stream at Wearhead. Durham; 



verified by Dr. Braithwaite. 



1900 August 1. » 



