SUPPLEMENT. 131 
Westray (5th September 1913); crags at burn-side, 
Sowa Dee, Sandwick (26th August 1912); crags at 
seashore, east side of Aith Hope, South Waas, Hoy 
(21st July 1913); and grassy crags at seashore, west 
side of Aith Hope, Waas, Hoy (4th August 1913) ; 
native at all these places. 
HIERACIUM SILVATICUM (Gouan.) 
Var. TRICOLOR (W. R. Linton). Seen by Rev. E. 
F. Linton. Crags on hillside 430 feet above sea-level ; 
Dwarfie Hamars, Hoy (22nd July 1912); native. 
HIERACIUM ORCADENSE (W. R. Linton). 
Seen by Rev. E. F. Linton. Crags on hill-side, 
Hoy (14th August 1879); Dwarfie Hamars, Hoy (10th 
August 1886, and 22nd July 1912); and very fine and 
luxuriant plants on crags at the seashore, west side of 
Walkmill Bay, Orphir (19th and 20th July 1912); 
native at all these places. Specimens collected by 
Col. H. H. Johnston on crags on hill-side, Ward Hill, 
Hoy, on 18th August 1881, are doubtfully referred to 
this species by the Rev. E. F. Linton, who states 
that “the specimens are too poor to name with any 
certainty.” 
Col. H. H. Johnston informs me that he got 
Pyrola rotundifolia (Linn.), on a heathery hill-side 
320 feet above sea-level, in Hoy (22nd July 1912). He 
also collected specimens of Utricularia minor (Linn.), 
in the swamp at the foot of the north-north-west 
slope of Cringla Fiold just on the Sandwick side of 
the boundary between the parishes of Sandwick and 
Stromness, on 26th August 1912. 
