62 FLORA ORCADENSIS. 
OrDER XLI.—POLYGONACE. 
Genus CLXXIL--RUMEX (Linn.), Dock. 
348. R. opfUSIFOLIUS (Linn.) Common. 
349. R. acuTus (Linn.), Meadow Dock. Seavee. 
Gritley, Deerness; Crantit; St. Andrews, W&e. 
This is generally thought to be a hybrid of &. obtusi- 
folius and R. crispus (Dr Boswell 1873). 
350. R. crispus (Linn.), Curled Dock. Common. 
Var. triangulatus (Syme). Fairly common. 
Var. subcordatus (Warr.) Stembister (Sept. 1908, 
M. Spence). 
351. R. aquaticus (Linn.), Water Dock. Fairly 
Common. 
352. R. SANGUINEUS (Linn.), Bloody-verned Dock. 
I have specimens sent me by J. Spence, Overabist, 
Hillside, Birsay. It was also reported by Neill in 
1888. 
353. R. AcErosELLA (Linn.), Sheep’s Sorrel. 
Common. 
Var. angiocarpus (Murb.) This is also found. 
354. R. AceTosa (Linn.), Sorrel. Common. 
Genus CLXXIIL—OXYRIA (Hill). 
355. O. RENIFORMIS (Hook.), Mountain Sorrel. 
Not common; Hoy Hills. 
