550 baker's north Yorkshire. 
Very abundant on stones by the Msk at Arncliflf Wood^ 
Eskdale, near Whitby (M.B.S.). 
Gilla Leys, Castle Howard (Spruce, 1844). 
Var. oxystegium Spruce M.S.S. 
On stones at Coneysthorpe, Castle Howard (Spruce, 1879). 
Fruiting 9-3 mths. 
18. H. viride Lamk. 
{^H. populeu7n Hedw.). 
Range 1-2. 
Shaded banks, frequent, especially amongst the hilKs 
(Baker). 
Wass Bank (Ibbotson, 1842). 
Stones near Obelisk, Castle Howard (Spruce, 1843). 
Var. majus Schimpr. 
Near Masham, on trees (M.B.S.). 
Fruiting 1 1-2 mths. 
19. H. rutabulum L. 
Range 1-3. 
Common in shaded places, on stones, walls, trees', &;c. 
Ascending from the central valley to the upper zone 
peaks (Baker). 
Fruiting 1 1 mth. 
Var. li. longisetum Bry. Eur. 
Strensall Common (Ingham). 
Var. ( robustum Schp. 
Wet places in woods and by streams. 
20. H. pivulare Bruch. 
Range 1-2. 
On damp rocks by the sides of streams, not uncommon, 
but rarely fruiting (Baker). 
Mowthorpe Dale, Castle Howard, fruiting (Spruce, 1837). 
