24 GEOLOGICAL SURVEY OF CANADA. 



(2270.) I. Hookeri, Penny; Stend. Nomen., 1840. 

 Itridentata, Hook. Fl. II., 206. 

 I. Caurina, Hook., Fl. II., 206. 



Apparently peculiar to the sea coast, and always found within 

 the limit of the spray from the sea. The writer is of opinion that 

 all allusions to I. versicolor, found on the coast, belong here. New 

 Harbor, Newfoundland. (Rev. A. Waghorne.) Wet bank above the sea, 

 Louisburg, Cape Breton. (Burgess.) On the sand bar, South Sydney, 

 Cape Breton ; abundant along the whole Gaspd coast, from Gaspd 

 Basin to Petit Metis. (Macoun.) Dalhousie, N.B. (Fletcher.) Cacouna 

 and Kamouraska, Q. (Pringle.) Mingan Islands, St. Lawrence. 

 (St. Cyr.) Magdalen Islands, Gulf of St. Lawrence. (J. Richardson.) 

 Mingan Islands ; and Ellis Bay, Anticosti. ( Ferrill.) 



(2271.)' I. tenax, Dougl, Hook., Fl. II., 206. 



No Canadian specimen of this species has ever fallen into our hands. 

 Newfoundland and New Brunswick. (Hooker, Fl.) In the neighbor- 

 hood of Hull, near Ottawa ; Determined by Dr. Vasey. ( Fletcher,. FL 

 Ott.) Common on dry undulating grounds, from Cape Mendocino 

 to Puget's Sound, North West Coast. (Hooker, Fl.) We strongly 

 suspect that the eastern references belong to /. Virginica, but have 

 no means of deciding. 



(2272.) I. Virginica, Linn. Hook., Fl. II., 206. 

 J. prismatica, Pursh, Fl. L, 30. 



Chiefly in salt marshes along the coast. Abundant in meadows close 

 to the sea, Louisburg, Cape Breton, 1883. (Macoun. Burgess.) New 

 Brunswick. (Hooker, Fl.) Nova Scotian and New Brunswick col- 

 lectors should examine the salt marshes and meadows near the coast 

 for Iris tridentata and 1. Virginica, as there is no doubt of their wide dis- 

 tribution in the maritime provinces. 



(2273.) I. lacustris, Nutt. Gray, Man. Ed. V., 517. 



Sandy thickets close to the beach at Chicken and Eed Bays, Bruce 

 Peninsula, Lake Huron, 1871. (Macoun.) Very abundant in sandy 

 thickets along Lake Huron at Southampton, Ont. .(Burgess.) 



(2274.) I. Sibirica, Linn. Eothr. Alask, 456. 



Norton and Kotzebue Sound, Alaska. (Rothr. Alask.) We know 

 nothing of this species. 



