232 
Rumex elongatus Guss. Estuarine mud above Kew Bridge, 
Surrey. [Ref. E.19]. July 1, fruit Aug. 17, 1933. — J. E. 
Lousley. This plant was first recorded from the Thames banks 
by Trimen in Journ. Bot. 1873, p. 237, and has been noted 
from various stations between Kew and Putney at intervals 
during the last sixty years. This year I found it in three 
different localities between Kew and Mortlake, and judging 
from my previous experience in searching for the plant the 
present summer must have been extraordinarily favourable 
to it. Fruits appeared in some quantity which appears to be 
rare in this country (Rep. Watson B.E.C. 1923/4, p. 259). 
It is noteworthy that, whereas R. elongatus is entirely 
restricted to the estuarine mud, hybrids of it with other 
Docks appear on the towing path above. Specimens of 
elongatus were submitted to Dr. K. Rechinger of Vienna, who 
replies : “ R. elongatus Guss. is a synonym of R. crispus L. ; 
your specimens belong perhaps to an alien type of this species 
which I do not know exactly.” Whatever the nomenclature 
may be, the Thames-side “ R. elongatus ” is certainly very 
distinct from all ordinary forms of crispus. The Wye plant, 
referred by Moss to R. crispus var. planifolius Schus. also 
grows on estuarine mud at Tintern where I examined it in 
July, 1933, under conditions almost identical with those of the 
Thames banks at Kew, and I have so far found it impossible 
to draw any very clear distinction between the Wye and 
Thames plants.- — J. E. Lousley. Distributed from this 
station in 1923. Vide Report 1923-24, p. 259. — H. W. Pugsley. 
“ R. crispus L. (mud forms often have little crisped leaves).” 
— Danser. 
Euphorbia stricta L. Rough, bushy ground west of Tintern, 
Mon., July 20, 1933, with J. E. Lousley, who found it. — 
H. S. Thompson. 
Ulmus stricta Lindley ? Bank of R. Char, close to its mouth, 
at Charmouth, Dorset, June 30, 1933. For a considerable 
distance along the left bank, close to the beach, a sort of hedge 
is formed by a remarkably distinct Elm with flat and very 
strict spreading branches, rather small leaves, the younger 
leaves slightly pinkish in colour, rough and hairy, and with 
paler down at axils of veins beneath. Being on tour, very 
little was gathered and dried. — H. S. Thompson. 
Salix atrocinerea x aurita (x S. Charrieri Chass.). [Ref. 
No. 579]. Whyteleaze, Caterham Valley, Surrey, April 13 
