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It is the hybrid M. rotundifolia x viridis. The broad leaves, 
cordate at base, and netted above with sunk venation take after 
M. rotundifolia. Their subglabrous character and the slender 
inflorescence, as well as scent, are characters of M. viridis. — J . 
Fraser. 
M. aquatica L. Coarse shaggy form. Marshy ground by W. 
Looe River, Sowden’s Bridge, Cornwall, v.c. 2, Oct. 30, 1926. — 
F. Rilstone. Is M. aquatica L ., var. acuta Briq. The variety is 
widely distributed and very variable in the amount of hairiness. 
It grows 2J — 6 ft. high. Leaves ovate, more or less acute, and 
the principal ones slightly cuneate at base, never cordate. — J. 
Fraser. M. aquatica f. liirsida. — A. Bennett. 
M. aquatica L. Slender subglabrous form. Locality and 
date as last. — F. Rilstone. Yes ; M. aquatica L. var. acuta , Briq., 
and practically that figured and described by Sole as M. aquatica 
major. It grows 3 — 6 ft. high, and varies greatly in hairiness, 
being often more glabrous than this in water and in shade. — J. 
Fraser. Var. subglabra Baker. — A. Bennett. 
M. aquatica L. var. subglabra Baker. In shade under alders, 
Frensham Great Pond, Surrey, Aug. 22, 1926. — D. C. Catcheside. 
Correct. — A. Bennett. Yes ; I would so name it by the Lond. 
Cat. method. This is the most frequently subglabrous of the 
varieties. It is what Briquet names M. aquatica L., var. acuta 
Briq., but there are hairy forms of it also. — J. Fraser. 
M. aquatica x arvensis (M. rivalis Wats.). Catcott Drove, 
Shapwick Moor, N. Somerset, v.c. 6, Aug. 25, 1926. — I. M. 
Roper. Correct. — A. Bennett. The calyx-teeth are not long 
enough to come under this heading. It is M. arvensis L., var. 
austriaca Jacq. The calyx teeth are long for arvensis, but there 
are others with long teeth .... and I admit they are puzzling. 
The variety austriaca is widely distributed. — J. Fraser. 
M. arvensis L. Stream-side below Grabhurst, Minehead, 
Somerset, v.c. 5, Aug. 27, 1925. — D. G. Catcheside. A stream- 
side form of the type, not one of the subglabrous named forms. 
— A. Bennett. The calyx teeth are too long for arvensis. This 
is M. verticillata L., var. rivalis Briq. By Lond. Cat. this is M. 
aquatica x arvensis ( sativa L. ; rivalis Wats.). — J. Fraser. 
Mentha . Damp ground by West Looe River, Sow- 
den’s Bridge, E. Cornwall, v.c. 2, Oct. 30, 1926. — F. Rilstone. 
By Lond. Cat. this is M. longifolia Huds., var. nemorosa Willd. 
Briquet calls it a variety of the hybrid M. longifolia x rotundifolia, 
