KEPOKT OF THE BOTANICAL EXCHANGE CLUB. 263 



HynclntlmH tion-scriplas, L. {Fjnrhjmlou, Bab. Man.). "Garden 

 examples, to show the variation of elongate and leaf-like bracts. The 

 original bulb from which these garden plants have been derived, was 

 found in Claygate, Surrey, in the year 1838 ; and the variation has 

 proved constant in the garden, the leafy bracts varying from 1 to 3 

 inches in length, accorrling to soil and season." — H. C. Watson. 



Elodea canadensis, Rich. {Anacharis, Bab.). "Examples with the 

 leaves so close and imbricate as to make the plant look like a Lycopo- 

 dium at first glance. They were brought from Fleet Pond, Hants, in 

 September, 186y. Apparently, the lowering of the water-level, so as 

 to leave the plants exposed to air, more or less outside the surface of 

 the water, bad been the chief cause of their compact growth. In this 

 state they were remarkably brittle, and broke much botli during and 

 after the drying process." — H. C. Watson. 



Potaniogeion decipiens, Nolte. Mr. (Jharles Bailey sends a specimen 

 of this plant from the canal at Navan, collected in 1868. Unfortu- 

 nately, he was not aware at the time he gathered it that it was a plant 

 new to the Irish flora, and so brought away only two specimens. 



Potaniogeion LoncJiites, Tuckcrm. ? Mr. Charles Bailey also sends 

 a few specimens of this plant from the I'iver Boyne, near Navan ; some 

 of them are in fruit, and the nuts accord well with the description of 

 those of the American plant, being larger, deeper, and more distinctly 

 keeled than in P. heterophyllns, and the peduncles are much longer 

 than those of the last-named species ; but the submerged leaves of 

 Mr. Bailey's specimens are much more like those of P. heterophyllns 

 than those of Dr. D. Moore's specimens collected in the same river. 

 The floating leaves of both plants bear a striking resemblance to those 

 of P. polygonlfolius, but the nuts are totally dissimilar, and the 

 branched stems of the plant I suppose to be P. Lonchites form a suffi- 

 cient means of distinguishing it when barren, and the peduncles 

 thickened upwards when in flower. 



Potainoyeton heleropliyllus, Schrad. " This was not believed to be a 

 native of Cheshire until I found it at Achmere ; and it is apparently 

 a rare plant in the county." — J. F. Robinson. 



Juncus glaiicns, Sibth., var. pseudo-diffnsns. I have sent out, under 

 this name, specimens of a plant abundant on the shores of the Firth of 

 Forth, between Aberdour and Burntisland. It is a sterile or sub- 

 sterile form of ./. f/lancns, of which it has the striated glaiicous stems 

 and interrupted pith, but the flowers are much greener, the capsules 

 smaller, and the seeds almost always abortive. It is probably to this 

 form that all the Scotch specimens supposed to be Juncus diff'usus belong. 



Juncus niyritellus, Don. On the shore of Loch Leven a depaupe- 

 rate form of'/, lamprocarpus, Ehrh., occurs, confined to the sandy por- 

 tions of the shore which are covered with water as late even as the end 

 of May. Amongst these, the smaller specimens have the leaves terete, 

 but in the larger they are compressed. Last autumn I brought a 



