646 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Orchis metadata , L., sub-sp. O. ericetorum , Linton. Tongue, v.-c. 
108, W. Sutherland, 3rd July 1900. — E. S. Marshall. 
Ophrys aranifera , Huds. Undercliff, St. Margaret’s Bay to Walmer, 
E. Kent, June 1900. — A. and J. Bennett. 
Allium Schcenoprasum , L. By the Wye, Erwood, Breconshire, 
June 1900. — W. H. Painter. 
J uncus diffusus , Hoppe. Roadside ditches near Alston, W. Lan- 
cashire, August 1900.— J. A. Wheldon. “This is J. glaucus merely.” 
— Ar. Bennett, E. F. Linton, and Ed. 
Luzula erecta , I)esv., var. congesta. Llanwrtyd Wells, Breconshire, 
June 1900. Sent as possible new record. — W. H. Painter. “Mr. 
Newbould gave me a record for v.-c. 42, years ago.” — Ar. Bennett. 
Potamogeton lanceolatus , Sm. From the classic locality, the 
Lligwy, Anglesea, where the river is not more than a hundred feet 
above sea level. At one time the small stream issued from a lake 
which has now been drained, and therefore that piece of water may 
nave contained P. pusillus, L., and other pondweeds. I made a 
somewhat prolonged search, but was unable to find any other species 
than P. polygonifolius now growing in the river. It must be remem- 
bered that in the Fen district Viola hybrids of stagnina still occur in 
places whence V. stagnina itself has disappeared, and it may be that 
we have in this plant a hybrid of P. gramineus in some of its forms 
with P. pusillus existing in a stream in which neither of the parents 
are now to be found. But we lack precise evidence on this point. 
Fortunately, the plant is very abundant over a limited area. The first 
week in July is rather too early to allow of good flowering plants to be 
obtained. — G. Claridge Druce. 
P. crispus x perfoliatus = P. Cooperi , Fryer. Orig. canals near 
Derby; cult. Shirley, 20th August 1900. New county record. Mr. 
Fryer agreed to the name. — W. R. Linton. 
P. crispus x Friesii = P. Lintoni , Fryer. Canal, Renishaw, Derby- 
shire, 1st August 1900. See ‘Watson B. E. C. Report,’ 1899-1900, 
p. 21. Growing in considerable quantity along the canal for a quarter 
of a mile or more; flowering very sparingly, and apparently quite 
sterile. — W. R. Linton. 
P. Drucei , Fryer. From the classic locality in the Loddon, between 
Whistley and Sandford Mills, Berkshire, August and September 1900. 
This is the plant which is included in my ‘ Berkshire Flora ’ as 
a somewhat untypical form of P. fluitans , see p. 516. At the 
time, and in the absence of rooting specimens, Mr. Fryer referred 
it to that species, but subsequently it was thought by him to be a 
form of P. polygonifolius , see “additions and corrections” at the 
beginning of that work. Mr. Fryer eventually grew it, and in his 
