I 



Barrington — Report on the Flora of Lough Erne. 19 



Sparganmm simplex (Huds.) — About three miles north, of EubIs- 

 kiUen, on the east side of the lake, at tlie first inlet which, comes 

 close to th.e road. 

 S. minimimi (Fries.) — In the same locality. 

 8. affine (Schn.) ? — Growing near 8. minimum. 



Of S. ajfine and S. simplex I have specimens, but I refer my 

 specimen to the former species with some doubt, the fruit being 

 imperfect. 



Ajeace^. 



Arum maculatiim (Linn.)— E'ot common. jN^ear the lower lake. 



LeMjS'ACE^. 



Lemna trisulca (Linn.) — In a ditch near Crum Castle. 



Z. gihla (Linn.) — In the lake, three miles north of Enniskillen, at the 



east side. 

 L. minor (Linn.) — Frequent. 



NAn)ACE.aE. 



Potamogeton nafans (Liiin.) — Common. Devenish, &c. 



P. polggonifolitis (Pourr.) — Boggy drains north of Blaiy ay, and 

 elsewhere. Frequent. 



P. heterophgllus (Schreb.) — Found floating by the shore of the lower 

 lake in many places. Specimens identical with this compact and 

 perhaps brittle form are in the British Museum Herbarium, from 

 Lough Bofin, Co. Leitrim, collected by Mr. W. T. Thiselton 

 Dyer. 



P. lucens (Linn.) — Abundant in the upper and lower lake. A flower- 

 less form, perhaps aacminatus, but with the prominent midrib not 

 quite so marked as in the Cambridge specimens, was gathered. 

 ^0 specimen of this variety, either in the British Museum or 

 at Cambridge, is in flower or fruit, and it may be but a young 

 and immature state of P. lucens. 



P. %i%ii (Eoth.) — Plentiful in the lower lake near the entrance to the 

 Kesh river, August, 1881. My specimens were submitted to 

 Professor Babington. This species has a great look of P. lucens, 

 but I saw no specimen with leaves of an intermediate shape 

 either at the British Museum or Cambridge. 



P. ferfoliatus (Linn.) — Common. 



P. filiformis (jS'olte.) — In water, about three feet deep, between Kin- 

 nausy Island and the mainland, near Kesh. Plentiful just in the 

 one spot. 



Alisieace^. 



Triglochin palustre (Linn.) — Common about the lake. 

 Alisma plantago (Linn.) — Common. Devenish, &c. 

 A. ranunculoides (Linn.) — Shore of Devenish, and in one or two other 

 places. Sparingly, and not common. 



