302 PLANTS EXCLUBED. 



Possibly correct, but this seems not so much a plant of peaty bogs, as 

 of shallow lake margins, and pools of stagnant water in limestone regions. 

 The broad leaved form of P. natans {var. ovaliformis) might, with slight 

 examiaation, be mistaken for the present species. 



95. Potamogreton lanceolatus Stnith. 



In, the Moyola River, near Shane's Castle [Moore) ; Cijb. Bib. Six- 

 mile water below Muckamore {Orr] \ Bennett, Jour. Bot., 1S82, ji?. 20. 

 Co. Down ; Sook. Stud. Flor. ed. III. 



Mr. Bennett's identification is unquestioned, but the authority for the 

 locality is not considered accurate. This identical portion of the Sixmile- 

 water has been searched for pondweeds by botanists sufficientlj'' critical. 

 The note in Cybele Ilibernica is erroneous in two respects. The plant 

 was misnamed, but this was subsequently corrected (vide Cyb. Sib., Supp.). 

 There still remains some confusion in the statement of the locality, the 

 nearest point of the Moyola to Shane's Castle being about eight miles. 

 Perhaps the river Main, which flows into Shane's Castle Park, was 

 intended. The reference in Students' Flora is based on the Sixmilewater 

 note, but the stream is in Co. Antrim, not Down. 



96. Potamog-eton zosterifolius Schum. 



Bow Lake near Saintfield {Stewart) ; Flor. Belf. In a pool on the 

 right hand side of the road from Newtownards to Bangor [Orr) ; Flor. 

 TJht. Co. Down ; Kook. Stud. Flor. 



The plant of Flora Belfastiensis was a state of P. obtusifoUus. The 

 note in Flora of Ulster is considered of no authority, this plant, like 

 many others noted by the same collector, remaining unverified ; the note 

 in Students' Flora is based on the same authority. 



97. Potamogeton mucronatus Schrader. 



In the Bann about Portglenone ; *' leaves finely serrate " ; Temple ton. 

 River Bann, Co. Down (<9n) ; Bennett, Jour. Bot., 1881, p. 312. Co. 

 Down ; Hook. Stud. Flor., ed. Ill 



At page 150 (under P. crispus) reason is given for the belief that 

 Tempi eton's plant was Hudson's P. serratus. Mr. Bennett is in error in 

 supposing that the station he indicates was referred to in Cybele Iliber- 

 nica or Flora Ilibernica. Both references were founded on Templeton's 

 note, quoted above, which locates his plant on the dividing line between 

 Antrim and DeiTy. There are two Banns the Upper Bann which rises in 

 the iMoume range, and flows thi-ough counties Down and Armagh, empty- 

 ing into Lough Xeagh at its southern end, and the Lower Bann which 

 flows out of the northern end of that lough, and in its passage to the sea 

 divides the counties of Antrim and Derry. The distance, as the crow 

 flies, betM^een Templeton's station, and the nearest point of the Bann in 

 Co. Down is over 30 miles. There is no good authority for the occmi-ence 



