6o6 
baker's north YORKSHIRE. 
On rocks in Teesdale, at Whitstoncliff, and near Gan- 
thorpe, Castle Howard (Spruce, 1843). 
Kirkdale, near Kirby Moorside, with perianths (Spruce, 
1847). 
Near Riveaulx and on rocks above Gormire, also in 
Wensleydale amongst the western hills and in Newton 
Dale in the eastern hills (Baker). 
Mowthorpe Dale, Castle Howard (M,B.S.). 
Ruswarp near Whitby (Braithwaite). 
Castle Hill, Scarbro', and Hawnby in Bilsdale (J. A. 
Wheldon). 
Rowlston Scar, Helinsley, Reeth and Sedburgh (Ingham). 
Very rarely fruiting. 
3. Porella rivularis (Nees) Lindb. 
(Madotheca riviilaris^ Nees.) 
On rocks in shaded glens amongst the hills, rare. 
Banks of the Greta and in Hagg Syke, Teesdale (M.B.S.) 
Sleightholme Beck, near Bowes (Ingham). 
Very rarely fruiting. 
Sub-tribe III. — Ptilidie.^:. 
Belpharozia Dum. {Juuoenuania, Hook.) 
I. Belpharozia ciliaris (L.) Dum. 
On sandy heaths in the vale of York ascending to the 
hills, not uncommon. 
Sparingly on Cronkley Fell, Teesdale (Spruce, 1843). 
Strensall Common, near York, amongst the heather 
(M.B.S.) 
Saltersgate Beck, and on most of the eastern moorlands 
(Anderson). 
Westerdale moor, Cleveland (Mudd). 
Sawdon moor (M.B.S.) 
Seamer moor (J. A. Wheldon). 
Very rarely fruiting. 
