DICOTYLEDONES. 33 
184. G. PALUSTRE (Linn.), White Water Bedstraw. 
Common. 
Var. Witheringii (Sm.) Fairly common. In bog, 
Mirkaday, Deerness; Scapa (Col. H. H. Johnston, 
C.B., 1876). 
185. G. APARINE (Linn.), Cleavers. Not uncommon 
on gravelly seashores. 
Genus XCII—SHERARDIA (Linn.) 
186. 8. ARVENSIS (Linn.), Pield Madder. Fairly 
common. 
Fairly abundant in East Mainland. Some botan- 
ists say it has been introduced; but it it surely too 
abundant for this, in Deerness at least. 
OrpDER XXV.—VALERIANACE. 
Genus XCII.—VALERIANA (Linn) 
187. V. OFFICINALIS (Linn.), Valerian. 
Not uncommon by sides of streams; (Dr 
Fortescue). 
188. V. SAMBUCIFOLIA (Mikan). Fairly common. 
Hoy, Ireland, and elsewhere. This’ is the more 
common species; the last is rare. 
189. V. pYRENAICA (Linn.) 
This grows in plantation, Binscarth ; no doubt 
introduced. 
Genus XCIV.—VALERIANELLA (Muill.) 
190. V. oxrrortIA (Poll), Corn Salad. 
Fields (Dr Duguid). Evidently very rare. A 
D 
