185 
L. multiflora DC. var. congesta (Lej.). Lostwithiel, Cornwall, 
v.c. 2, June 4, 1901. — A. 0. Hume. Comm. S. Loud. Bot. Inst. 
Typha a/ngustifolia L. Afon Wen, Carnarvonshire, Aug. 14, 
1905.— A. 0.' Hume. Comm. S. Loud. Bot. Inst. The specimen 
sent me is a monstrous form. — Ii.S.T. 
Sparganium minimum Fries. Shapwick Peat Moor, N. Somer- 
set, v.c. 6, July 8, 1921. In dried-up rhine, after drought. — 
H. S. Thompson. 
Acorus Calamus L. Hale Moss, Altrincham, Cheshire. Comm. 
S. H. Bickham. 
Alisma ranunculoides L., var. repens (Davies). Dowrog, St. 
Davids, Pembroke, Aug. 24, 1905. Leg. E. F. Linton. Comm. 
S. Lon. Bot. Inst. Is not this flowerless A. natans L. 1 The 
specimen sent shows two of the characteristic obtuse floating 
leaves. — H. W. Pugsley. Mr. Linton was hardly likely to have 
named this wrongly, even if there were no flowers or fruit visible, 
and notwithstanding a few obtuse floating leaves. The floating 
leaves in A. natans are described in books as blunt or obtuse, but 
in plate 539 in Smith’s “Eng. Bot.” Ed. 2, Yol. III., they are not 
blunt, but ovate elliptical. The variety was described (as a 
species) first by Lamarck in 1790, and later in Davies’ “Welsh 
Botanology,” p. 36 (1813), and figured in Cavanilles “leones 
Hispan.” (1791 — 1801). For further information see Smith’s 
“ Eng. Flora,” Ed. 2, Yol. II. (1828), p. 205 — 6. This excellent 
work is too rarely consulted in these days. But what is var. 
zosterif olkis Fries ap Koch Syn. Ed. 2, of which llouy says, 
“plante ordiuairement sterile.”— H.S.T. 
Elisma natans Buchenau. Llanberis, v.c. 49, Aug. 15, 1905. — 
A. (). Hume. Comm. S. Lon. Bot. Inst. 
Potamogeton perfoliatus L. Coniston Lake, N. Lancs., v.c. 69 B, 
Sept. 10, 1921. This is a rather extreme British form, found in 
the deep-water of our English lakes, e.g. Windermere, Coniston, 
and Esthwaite Water. It would come under var. lanceolatus 
Blytt, and be included in var. gracilis Hagstrom ; but we are of 
the opinion that the so-called varieties of these species are — in 
Britain at any rate— merely states induced by local conditions. 
We hope to deal more fully with this point in the “Journal of 
Botany” shortly.— W. H. Pearsall. Yes; one of Mr. Pearsall’s 
beautifully-dried specimens that do not exactly fit any named 
variety, being somewhat between the var. lanceolatus Blytt, and 
the var. oblongifolius M. et K. (1824) in Do Candolle’s herbarium 
at Geneva. — A. Bennett. 
