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Polygonum [petecticale Stokes]. Garden weed at Bucking- 
ham Place, Clifton, W. Glos., Aug. 16, 1933. — H. S. Thompson. 
I agree. — J. Fraser. Is this not a form of P. Persicaria with 
long slender peduncles ? — J. E. Lousley. Both compressed 
and trigonous nutlets are present in my specimen, which is 
P. Persicaria var. datum G. et G. Compare with the specimen 
from Surrey sent by Mr. E. C. Wallace under the name 
P. nodosum Pers. — A. E. Wade. A remarkable plant 
characterised by (1) its much-branched habit, the elongated 
oblong-lanceolate acuminate leaves, broadest below the 
middle, slender elongated inflorescences, and glandular 
peduncles and perianths ; (2) strongly-ciliated ochreae, and 
nutlets roundish and either flat, plano-convex, or triangular. 
That it is not P. petecticale (Stokes) Druce, is certain, and from 
the combination of characters I regard this plant as the hybrid 
P. nodosum Pers. var. erectum Rouy x P. Persicaria i L. 
The characters enumerated under (1) show its affinity with 
P. nodosum Pers. ( P . petecticale Druce), the long tapering 
leaves indicating var. erectum Rouy as the precise form 
concerned, and under (2) are the chief features derived from 
P. Persicaria L. — C. E. Britton. Possibly this gathering was 
not quite homogeneous. — H. S. T. 
Polygonum lapathifolium L. ? var. incanum Koch. Blagdon 
Reservoir, N. Somerset, Sept. 5, 1933. — H. S. Thompson. 
Correct, but not well marked. — C. E. Britton. 
Polygonum [ lapathifolium L.]. Blagdon Reservoir, N. . 
Somerset, Oct. 13, 1933. Leaves narrow, very pointed, and 
long petioled. All with a dark blotch. An acre or more was 
pink (crushed strawberry colour) with the flowers. — H. S. 
Thompson. From the brown nuts about 2 mm. long, and 
shorter than the perianth, and the presence of a few glands 
on the peduncles, this appears to be a form of P. nodosum 
Pers. — J. E. Lousley. This is P. nodosum Pers., and differs 
from my var. inundatum by the shorter and stouter internodes, 
the shorter inflorescences and larger nutlets (2|x2 mm.). 
These differences may be perhaps due to the influence of the 
dry, hot summer. — C. E. Britton. 
Polygonum nodosum Pers. [Ref. 1824], Swampy part of 
Dunsfold Common, Surrey, Aug. 23, 1933. — E. C. Wallace. 
These must be placed to my var. inundatum.- — C. E. Britton. 
This comes near P. lapathifolium with its obliquely truncate 
ocreae and seeds that are concave on both faces.— J. Fraser. 
