Hart — On the Flora of Southern Donegal. 579 



Ophioghssum vulgatum, Linn. Brown Hall ; Stone Park, near Bally- 

 shannon. 



Lycopodium alpinum, Linn. Alt Mountain, near Ardara ; Aghla 

 Mountain, above Lough Finn. 



The following Characeoe have been determined by Mr. Arthur 

 Bennett : — 



Char a fragilis, Desv. Kiltooris Lake, near Ardara. 



C. contraria, Fr. Kiltooris Lake, with the last. 



Nitella opaca, A. In a small lake on the left bank of the Erne, 

 close to it, above Ballyshannon. 



In the foregoing list the following are additions to the Plora of 

 the county Donegal. "With these are included a few which I have 

 had some doubts about, or which have been erroneously recorded. 

 Any of which I still have doubts are omitted. Varieties are 

 bracketed : — 



Thalictrum minus, 'LvoB.., \Qx. flexuosiim. 



\_Ranunculus drouetii, F. Schultz. A form of tricopliyUus, perhaps 

 hardly worth distinguishing.] 



Aquilegia vulgaris, Linn. 



\_Barharea arcuata, Reich. A variety of B. vulgaris.] 



Saponaria offimialis, Linn. Eecorded, but without locality, in the 

 Cylele Hihernica. 



Ononis arvensis, Linn. Eecorded, but without locality, in the 

 Cylele Hihernica. Like the last, it appears to be at any rate 

 very rare in Donegal. 



"^'Torilis nodosa, Goert. \LoniGera xijlosteum, Linn. : Matricaria parthe- 

 nium, Linn.] 



^Cuseuta epilimim, "Weihe. 



'^Afropa helladonna, Linn. 



] Origanum vulgare, Linn. 



Calamiyitha officinalis, Moench. 



Potamogeton prcelongus, Wulf . 



P. nitens, Web. 



P. gramineus, Linn. 



Scirpus syhatieus, Linn. 



EriopTiorum latifolium, Hoppe. 



Cryptogramme crispa, E. Br. 



Cliara contraria, Pr. 



Nitella opaca, Ag. 



