FLORA OF FORFARSHIRE, 157 
procambens (S. procumbens, E. Bot.) Both plentiful 
on the muddy banks of Montrose Basin. 
Plentiful at the head of the Basin four miles from Mon- 
trose, Mr D. White , (North. Flora.) 
(S. radicans, Sm. is stated in Hook. FI. Scot, to be found 
on the sea-coast at Montrose, but I have seen no specimens, 
nor do any of my Montrose friends meet with it.) 
Ord. LXIX.— POLYGONE^E, 
Gen. Br. 3. F. 3. Sp. and v. Br. S3. F. 21. 
Polygonum, L. Bistort, Knot-grass, &c. 
Br. sp. and v. 17. F. 11. 
P. Bistorta, L. Bistort, or Snakeweed. H. 281, B.257. 
— F. June. P. 
Den of Mains near the old churchyard. It was formerly 
very abundant in the “ Howff or old burying-ground of Dun- 
dee, but since the improvement of that cemetery the plant has 
disappeared. 
Banks of the “ Bow ” or lint-pond, Kinnaird, Mr A. 
Bousie. Near Kinaber Mills, round a field said to have 
formerly been a garden, Mr A. Croall. 
P. mviparum , L. Viviparous Alpine Bistort. H. 281, 
B. 257. E. June, July. P. 
Frequent on the Sidlaw Hills, and the Clova and Glenisla 
mountains. 
Marten’s Den, Mr A. Croall. 
P. aviculare, L. Common Knot-grass. H. 282, B. 259. 
— F. May, Sept. A. 
Abundant about waysides, borders of fields, and waste 
places, varying much in size in all its parts. 
P. Roberti, Lois. Bobert’s Knot-grass. H. 282, B. 259. 
— F. August, Sept, A. (P. Rail, Bab. P. maritimum,, 
Ray. P. aviculare, fi. Br. FI. ed. 3d. P. acetosum , Hook, 
in Sm. Com. P. dubium , Deak.) 
