260 
Proceedings of ihe Royal Irish Academi/. 
Plmits certainly introduced^ 
But well established in the wild state, 3 : — 
Acorns Calamus. Hippophae rhamnoides. 
Cuscuta Trifolii Colonist,") 
the first two having been planted, the last accidentally sown when 
mixed with agricultural seeds. Though planted at Courtown, it is 
barely possible that Hippophae may be native on the sandhills further 
south, according to what we hear from Mr. J. Morrison. 
Casuals. 
That is, plants certainly introduced by man, and which cannot be 
considered permanent additions to the Flora, being waifs and strays 
from cultivation, or weeds springing from seeds conveyed by 
accident, 14: — 
!N"early all these are, no doubt, recent introductions, and most of 
them will probably disappear in the course of a few seasons. Valeria- 
nella carinata and Crepis setosa may possibly establish their hold on 
the ground, and thus in time become entitled to rank as Colonists." 
Thus there are thirty-one plants, which, after deducting casuals and a 
few that have before been borne on the Irish list, will leave at least 
twelve species to be reckoned as genuine additions to the Flora ; and 
this I think is no inconsiderable result, and far exceeds the additions 
made to the English and Scottish Floras within the same time. Still, 
this scarcely increases the total number, as we have on the other 
hand to deduct ten plants, viz. : 
?Brassica oleracea. Not a native, and nowhere well established. 
Genista tinctoria. Not to be found at Killiney, some error ? 
?Chrysosplenium alternifolium. Thought to have been planted 
near Belfast, and we fear that the other stations are erroneous. 
Campanula latifolia. C. Trachelium mistaken for it. 
?Arctium majus. Name doubtful, as the only specimen is im- 
perfect. 
Calamintha Nepeta. Was C. officinalis. 
Chenopodium intermedium. Now thought to have been C. murale. 
Salix procumbens. Was S. phylicifolia. 
Potamogeton lanceolatus. Was a form of P. polyyonifolius, 
Eriophorum alpinum. Some error, or change of specimens. 
Cardamine impatiens. 
Brassica adpressa. 
Berteroa incana. 
Malva borealis. 
Geranium nodosum. 
G. phseum. 
Oxalis stricta. 
Yalerianella carinata. 
Crepis setosa. 
Centaurea paniculata. 
Carduus setosus. 
Campanula rapunculoides. 
Mentha Requienii. 
Cynosurus echinatus. 
Species to be behoved feom the list. 
