31 
of Suoda maritma growing together where they were equally 
exposed to tidal action. — W. C. Barton. Yes ; a slight variety. 
1 iave occasionally seen it on dry mud. seldom reached by the 
tide.-- -E.S.M. 
Polygonum Convolvulus L., var. subalai nr . Lej. & Court, lief. 
No. 247. (1) Garden hedge at Freshwater, I. of Wight, v.c. rO, 
Sept. 7, 191G. In the “Camb. Brit. Flora” the variety is thus 
defined : “Laminae about twice as long as broad. Inflorescence 
many-flowered. Exterior perianth segments eventually narrowly 
winged.” In these specimens, which were all taken from one 
plant, the laminae vary from slightly longer than broad to twice 
as long ; the inflorescence is never few-flowered, but the develop- 
ment of the wing varies considerably. — W. C. Barton. Not so 
well marked as some subdatum which I have seen possessing 
perianth-wings up to 1 ram. in width, and then sometimes mis- 
taken lor dumetorum. Mr. Barton's example before me could 
r ever be so confused. I do not know what the expression (in 
the “Camb. FL”) “perianth segments eventually narrowly 
winged” means, as in well marked subalatum the wings are 
obvious (though variable in width) in all stages of the inflor- 
escence. As Mr. Barton notes, the leaf-character seems an 
inconstant one. — C.E.S. (2) Field near Caldeeote, Carabs., v.c. 
29, Sept. 30, 1916. — A. J. Crosfield. Yes, quite nice subalatum. 
If held up to the light, the wings are very evident on my 
example. — C.E.S. 
P. aviculare L., var. agrestimm (Jord.). No. 2. Grey Abbey, 
Co. Down, Sept. 1916. Flowers bright red, closely placed 
towards end of branches, plants prostrate, widely spreading. — 
C. Id. Waddell. I believe this is correct. — E.S.M. 
P. aviculurS L., var. \vulyatim Syme] No. 1. Grey Abbe v, 
Co. Down, Sept. 1916. Leaves caducous. — C H. Waddell. 
Under agresiinum, ■ think: but broader-leaved than No. 2. — 
E.S.M. 
P. aviculare L., var. arenastrum (Bor.) (= P. (equate Li adman t 
Grey Abbey, Co. Down, Sept. 1916. Branches not so congested 
as usual. — C H. Waddell. One of my pieces is good arenastru a 
(as understood by Syme) ; the other does iot differ much, but is 
less chaiacteristic. — E.S.M. 
P. Shalford Common, Surrey, v.c. 17, Sept. 1888.— 
Coll. A. Bennett. Comm. C. E. Salmon. I know this plant or- 
Shalford Common, and consider it a low-growing state of 
