DICOTYLEDONES. 7 
34. D. INCANA (Linn.), Twisted Whitlow-qrass. 
Rather rare. 
Rousay hills; Syradate; Fitty Hill. The plant 
from Syradale I take to be the var. contortw (Ehrh.) 
Stems densely leafy, pouch glabrous. 
Var. minor (Gray). This p:ant was sent me by 
Mr Ed. McKay, Westray, and gathered on Fitty Hill 
in 1910. It was examine! by Mr Ar. Bennett, who 
named it as above. 
Genus XIV.—COCHLEARIA. 
35. C. OFFICINALIS (Linn.), Sewrvy-grass. Common. 
36. C. ALPINA, Alpine Sceurvy-gruss. 
This was found by Col. H. H. Johnston, C.B., on 
top of Knucker Hill, Westray, July 1883. It is also 
recorded in Dr Fortescue’s list, on the authority of Dr 
Boswell. I found it on the Wart Hill, Rousay. 
37. C. GRGENLANDICA (Linn.), NCULUI-Y PUSS, 
Black Craig and elsewhere along the coast. It 
grows on tufty headlands. Gathered by Rev. E. 8. 
Marshall in July 1900; by me several times since. 
Genus XV.—CAPSELLA. 
38. C. BursA-PAsTorIs (Medic.), Shepherd’s Purse. 
Common. 
Genus XVI.—THLASPI. 
39. T. ARVENSE (Linn.), Penny-cress Rare. 
Rousay (Dr Duguid), Braebuster, Deernes:, and 
Greenwall, Holm (M. Spence, 1896); it is fairly 
