REPORT FOR 1912. 



281 



have a depression on both faces, and no raised line as in P. Persicaria^ 

 — J. A. Wheldon. " Is this not a form of P. lapathifolium accord- 

 ing to British authors ; there are a few glands on the perianth, and 

 the seed is not trigonous." — G. C. Druce. 



Polygonum Persicaria, L., var. 1 [Ref. No. 37.] Grand Havre, 

 Guernsey, Aug. 14, 1912. A remarkably close procumbent plant 

 growing at the side of a cart track — about forty plants all of the 

 same growth. — W. 0. Barton. This probably comes under the 

 var. ruderale (Salisb. Prod., 259), Meisner in DC. Prod., 118." — 

 G. 0. Druce. 



Polygonum minus, Huds. Shallow ditches, Barnard's Green, near 

 Malvern, v.-c. 37, Sept. 17, 1912.— S. H. Bickham and R. F. 



TOWNDROW. 



Polygonum aequale, Lindm. [Ref. No. 5226.] Near Lacey 



Green, Bucks, Aug. 1912. — G. C. Druce. Determined by Dr Lind- 

 MAN to be P. aequale x calcatum. 



Polygonum aviculare, L., var. [Ref. No. 44.] Leree, Guernsey, 

 Aug. 13, 1912. — W. C. Barton. " Is a form of P. aequale, Lindm." — 



C. E. LiNDMAN. 



Polygonum aequale, Lindm. (\). [Ref. No. 4908.] Loch Leven, 

 Kinross, Aug. 1912. — G. C. Druce. "Is P. heteropfiyllum, Lindm., 

 var. horeale, Lange." — C. Lindm an. 



Polygonum aequale, Lindm. [Ref. No. 5001.] Stanton St. John, 

 Oxford, with the foregoing and perhaps a hybrid of it, Aug. 1912. — 

 C. LiNDMAN and G. C. Druce. Dr Lindman later on reported that 

 * I now prefer to say P. heterophyllum, paulo cum P. aequali mixtum. 



Polygonum heterophyllum, Lindm. [Ref. No. 5002.] Near Stow 

 Wood, Oxon, Aug. 1912. — 0. Lindman and G. 0. Druce. "Yes; var. 

 genuinum (excepto perigonio paulum abbreviato)." — C. Lindman. 



Polygonum heteropyllum, Lindm. [Ref. No. 5000.] Stanton St. 

 John, Oxford, Aug. 1912, see Kejiort 1912, p. 177.— C. Lindman and 

 G. C. Druce. " Yes, genuinum.'^ — C. Lindman. 



Polygonum heterophyllum, Lindm. (?) [Ref. No. 5009.] Fril- 

 ford, Berks, Aug. 1912. -G. C. Druce. "A form of P. aequale, 

 Lindm." — C. Lindman. 



Polygonum aviculare, L., var. agrestinum (Jord.). Stream bank, 

 Mollington Meadows, near Chester, June 19, 1912, and lane side, 



