44 Yorkshire Naturalists’ Union: Annual Report, 1914. 
with the plants in their homes. If we can get statistics and 
records ready for future enquirers we shall have accomplished 
some good work. 
BOTANICAL SURVEY COMMITTEE.—Dr. T. W. Woodhead 
writes :—Considerable attention has again been paid to the 
vegetation features of the districts visited during the excursions 
of the Union. Of especial interest was the vegetation of the dry 
valleys of the Wolds noted during the Filey excursion at’ Whit- 
suntide. It is hoped that a detailed study of these valleys will 
be made, as they promised several features of interest. The 
most important work done during the year is the study of the 
ecology and life history of Molinia cerulea by the Rev. T. A. 
Jefferies. The distribution of this species and its associates 
have been carefully worked out on the Slaithwaite Moors near 
Huddersfield, and it is hoped that the results, which are of much 
value will shortly be published. Incidental to this investigation 
was the discovery of great numbers of galls on the stems of 
Molinia caused by the gall-midge, Oligotrophus ventricolus, an 
insect new to Yorkshire; described in The Naturalist for 
November. 
BRYOLOGICAL COMMITTEE—Mr. Wm. Ingham, B.A., writes :— 
At the meeting of the Bryological Committee at Plumpton Rocks 
the moss, Orthodontium gracile was found in abundance on 
vertical rocks, also Cynodontium Bruntoni, and the rare Hepatic, 
Sphenolobus exsecteformis. 
At the Y.N.U. Meeting at Knaresborough were found 
Plagithecium latebricola and Barbula tophacea var. acuttfolia. 
At the Meeting at Askrigg, Hypnum chrysophyllum var. 
erectum was found on Addlebrough, Hypnum vernicosum in 
abundance by Semmerwater, Seligeria pusilla and the hepatic, 
Cololejyeunea calcavea in Whitfield Gill. 
At the Meeting at Middleton-in-Teesdale, in May, 1910, 
the second Brit. habitat for Hypnum fluitans var. Robertsieé 
was found, the moss being examined and determined in 1914. 
Mr. J. J. Marshall has done further good work in the bryo- 
logically neglected county of Lincolnshire. He has added the 
following to V.C. 54, Dicranum undulatum, Pleuridium subu- 
latum, Tortula muralis var. rupestris, Bryum atropurpureum 
var. gracilentum, Thuidium Philibertt, Eurhynchium speciosum, 
and the rare Hepatic, Ptilidiwm pulcherrimum. , 
MyYcoLoGicAL COMMITTEE.—Mr. C. Crossland writes :—The 
report of the twenty-fifth Annual Meeting and Foray of the 
Mycological Section will be found, with all particulars, in The 
Naturalist for January, pp. 12-16. 
The seventh supplementary list of recently discovered 
Yorkshire Fungi since the publication of the ‘ Yorkshire Fungus 
Flora’ appears in The Naturalist for May, pp. 145-150. 
Naturalist, 
