78 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
that it did grow in other localities of the Great Fen Level before 
their drainage, but I can find no trace of this among old specimens 
of the genus. Its rare fruiting would partly explain its not being 
distributed by aquatic birds, but why should not P. trichoides , Cham., 
be so distributed ? — this fruits freely some years. That trichoides did 
occur formerly in other parts of Norfolk, where it is now unknown, is 
certain, as Mr. Carruthers has shown me fossil specimens that 
unquestionably belong to it. I have not succeeded in detecting any 
seeds of the genus in the stomachs of migratory aquatic birds, but my 
opportunities have been very few, and those accorded me by the 
kindness of the late Mr. J. Flower, F.Z.S. — Arthur Bennett. 
Potamogeton nitens, var. latifolius , Tis.! non Fieber. Lunan Burn, 
E. Perth, 18th August, 1882. — A. Bennett. (Coll. A. Sturrock.) 
P \ decipiens. Canal, Warwick, Sept., 1882. — R. L. Baker. And 
var. affinis, Teviot, Roxburgh, 31st August, 1882. — A. Brotherston. 
Dr. Baker’s plant approaches my var. affi?iis very closely, the only 
difference being the spikes are longer than in Mr. Brotherston’s 
Tweed plant. Since the note on this plant (“ J. of Botany,” 1882, p. 
184), I have received by the kindness of Herr R. von Uechtritz, a 
good series of the Silesian plant, and I cannot consider it represents 
Mr. Brotherston’s specimens so closely as Rev. T. Morong supposed. 
A. Bennett. 
P. Zizii. Rescobie Loch, Forfar, August, 1882. — G. C. Druce. 
P. Zizii , var. elongatus , M. & K. Fol., Derwentwater, Cumber- 
land, 15th Sept., 1882. Fruct., Coniston Lake, N. Lancashire, 22nd 
Sept., 1882. See Proceedings of the Manchester Literary and Philo- 
sophical Society, 1882-3, p. 40 . — Charles Bailey. 
P. lucens , v. acuminatus. Canal, Warwick, August, 1882. — R. L. 
Baker. Almost typical lucens , not acuminatus , Schum. — A. Bennett. 
On the Rev. A. Ley’s plant, sent as the above var., Mr. A. Bennett 
remarks : “ Although the midrib is strongly excurrent, it is not, as I 
understand it, acuminatus , Schum., which has much narrower leaves, 
tapering gradually to each end. I have only seen this in Norfolk.” 
P. prcelongus, Wulf. White Mere, Ellesmere, Salop, October, 
1882. — A. Bennett. (Coll. W. E. Beckwith.) 
P. crispus , Linn. Loch of Aikerness, Evie, Orkney, 22nd July, 
1882. A new station. Reported from Rousay by Mr. Robert 
Heddle some 30 years ago. As yet not known to occur elsewhere in 
Orkney. — W. Irvine Fortescue. 
P. zosterifolius , Schum. Canal, Abingdon, Berks, June, 1882. 
G. C. Druce. 
P. pusillus , var. Sturrockii. Marlee Loch, E. Perth, nth Sept; 
1882. — A. Bennett. (Coll. A. Sturrock.) See J. of Bot., 1883, p^ 279. 
P. flabellatus , Bab. Isis, Oxford, June, 1882. — G. C. Druce. 
R. Wey, Guildford, Surrey, Sept., 1882.— W. H. Beeby. 
Alisma natans , L. Canal, Whixall Moss, Salop, 25th July, 1882. 
A. Ley. 
Orchis purpurea , Huds. Cuxton, Kent, 4th June, 1882. — H. E.Fox. 
O. militarise L., Plort. Reigate, 1882. Root from Loudwater, 
Bucks. — W. H. Beeby. 
O. incarnata , L. Southport, Lancashire, 8th June, 1882 . — Geo. 
Nicholson. 
