Hart — On the Flora of South - Wed Donegal. 469 



on a few which occur under District 11 in the Cyhele Hilernica. These 

 are Rammculus lingua, CEnanthe phellandriuin, Scirpus sylvaticus, and 

 perhaps Carex acuta. A few others, of whose occurrence I have 

 received information, I will only record doubtfully, until certified by 

 myself according to the rule I have adopted. These are Rhamnus 

 catharticus, Geranium pratense, and Jli/drocharis morsus-rance, 'which 

 IMiss Young has observed in the neighbourhood of Pettigo. A con- 

 siderable number of species which are obviously introduced need not 

 here be repeated. I might add to this list EcMnospermum lappula, a 

 ballast weed which occured near the quay at Donegal. These species 

 are already mentioned, and may be singled out by their asterisks. The 

 following are additions to District 11, or county Donegal: — 



Eanunculus baudotii, Lysimachia vulgaiis, 



Cochlearia danica, Statice bahusiensis. 



Geranium sanguineum, E.umex hydrohapathum, 



G. lucidum, Quercus sessiliflora, 



Euonymus europseus, Juncus obtusiflorus, 



Dryas octopetala, Potamogeton zizii, 



Carum verticillatum, Carex boenninghauseniana, 



Slum augustifolium, C. aquatilis, 



Cornus san guinea, C. penclula, 



Carlina vulgaris, C. vesic^ria, 



Thrincia hirta, C. riparia, 



Hieracium pallidum, Milium etfusum, 



H. caesium, Triticum caninum, 



H. gothicum, Equisetum hyemale, 



H. argenteum, E. variegatum, 



Gentiana amarella, Polystichum lonchitis ; 



and Trichomanes racltca?is, the Killarney fern, in its second Donegal 

 locality, may again be mentioned. Of a few others I am still in some 

 degree of doubt. Orchis morio, Festuca myurus, and Bromus commu- 

 tatus were I think gathered, but the specimens were past flowering. 



In conclusion, I have the pleasure to express my sincere thanks to 

 the several botanists who have kindly aided me in determining my 

 specimens : to Mr. More, for his constant help, without which help 

 an Irish botanist can hardly succeed ; to Mr. Eackhouse, for his valu- 

 able discrimination of a long series of Hieracia from various counties ; 

 and to Professor Babington for his further supervision of some of that 

 difficult genus ; to Mr. Arthur Bennett for very material assistance in 

 several sets of aquatic weeds; and to Mr. Baker for the determination 

 of a few E,ubi, and one or two other troublesome forms. To all these 

 gentlemen I desire here to acknowledge my gratitude for their un- 

 grudging assistance. 



