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variation in the attenuation of the spikes is, I think, mainly due 
to different stages of ripening. — E.J.S. Yes ; quite normal. — 
E.S.M. ( 2 ) Quarter mile below Dell Quay, W. Sussex, v.c. 13, 
Oct. 13, 1918 (det. E. J. Salisbury). — J. E. Little. Correct, I 
believe, but the specimens received are not the well-developed, 
many-branched state. — E.S.M. 
S. ramosissivia Woods, forma. (Ref. No. 342 a). Drier part 
of salt marshes, Pagham Harbour, W. Sussex, v.c. 13, Sept. 12, 
1918.— W. C. Barton. These are, 1 think, merely a state of 
S. ramosissivia, which approaches S. gracillima in habit. It is a 
form which occurs when the plants are abundant or densely 
crowded, and have suffered from intertidal drought. — E.J.S. 
S. gracillima Moss ? x ramosissivia Woods. Sidlesham, W- 
Sussex, v.c. 13, Oct. 11, 1918. — J. E. Little. These vary greatly 
in the regularity of branching and shape of spike. So far as one 
can judge from dried specimens, I am inclined to regard them 
as S. gracillima x ramosissivia , with decided approach to the 
former putative parent. — E.J.S. Looks cpiite right. — E.S.M. 
S. disarticulata Moss. (Ref. No. 344 a). Opposite West 
Itchenor, W. Sussex, v.c. 13, Sept. 16, 1918. — W. C. Barton. 
Yes ; nice examples. — C.E S. Correct, I believe. — H.W.P. 
S. disarticulata Moss x ramosissivia Woods. Dell Quay, Apple- 
dram, W. Sussex, v.c. 13, Oct. 13, 1918. Coll. J. E. L., Oct. 13, 
1918. A small patch of about 20 sq. yds on shallow mud resting 
on shingle had growing on it S. ramosissivia , of which four sheets 
are sent ; also plants which 1 sent to Dr. Salisbury, marking 
them B and C, as to which he writes: “B and C are S. disar- 
ticulata x ramosissivia ” [except a few determined as S. disarticulata 
which have been taken out]. “In nearly all the ‘C’ rudiment- 
ary lateral flowers can be detected in one or more cymes. There 
are a few uniflorous throughout (at all events, I did not detect 
any rudimentary lateral flowers), but the character of the spike 
seems to indicate hybrid origin nevertheless ” (in litt. Dec. 22, 
1918).— J. E. Little. Right, I believe. Not pure disarticulata, 
but the numerous solitary flowers indicate that as one parent. 
E.S.M. Correctly named by Dr. Salisbury, I think. Flowers 
solitary, or in twos or threes on the same plant ; mostly solitary. 
C.E.S. 
Polygonum Persicaria L., var. ruder ale Meisner. Waste ground, 
Eastville, Bristol, W. Glos., v.c. 34, Oct. 3, 1919.— Ida M. Roper! 
This agrees with the description of var. ruderale in “ Camb. Brit. 
