372 GEOLOGICAL SUR\T:T OP CANADA. 



forma salina, Voch ! (It really comes under P. flabellata, Bab., as a 

 variety, but without fruit, it is impossible to say so.)" {Bennett, 

 Letter, 1890.) In a saline pond north of Kamloops, B.C.. June I3th, 

 1889. {Macoun.) 



(2449.) P. pectinatus, Linn.; Macoun, Cat. IV., 8S. 



"Judging by the young fruit this (No. 12) must go to P. pectinaiiis, 

 Linn., as an aggregate. It comes close to the var. l<mtjissimus, Mertens & 

 Koch (1823), which was issued in the Flora Lugric«, 1800, as the var. 

 lml(Jissimus,^\ citiBmunn Fl. Petrop." {Bennett Letter, March 3rd, 1890.) 

 Pond on the Indian Keservation al Kamloops, B.C., June 26th, 1829. 

 {Alacoun.) 



657. RUPPIA. 



(3291.) R. lacustris. 



Stems rigid, firm and wofKiy, forking and producing numerous 

 leaves in bud-like clusters at the nodes and ends of the branches. 

 Leaves sheathing, rigid and straight ; stipules white, membraneous from 

 one to two inches long. Fruiting peduncles bright red rising from the 

 centre of the leaf clusters, coiling spirally after flowering. Fruit im- 

 mature. 



A very distinct species, having more the appearance of Potamogeton 

 pectinatus tiian Buppia maritima. Abundant in a saline pond north of 

 the Ferry at Kamloops, B.C., .Tune 13th, 1889. The pond is one of a 

 series in the bare hills above the trail leading to Ti-anquille. {Macoun.) 



665. HELEOCHARIS. 



(2467.) H. ovata, R. Br. ; Gray, ilan., ed. VI., 574. 

 H. obtusa, Schultes ; Macoun, Cat 1 V., 95. 

 Not uncommon in British Columbia. Agassiz. 1889. {Macoun.) 



(2468.) H. palustris, Linn., var. Watsoni, Clarke. Journ. Bot., 

 XXV., 268. (1887.) 



Stated by Mr. Clarke to occur in Newfoundland, Labrador, and sub- 

 arctic America, and to be a very trifling depauperate form or varietj- 

 with castaneus spike. {Britton.) Hudson Buy. {Burke, tide Britlon.) 

 In wet sand, Brackley Point, Prince Edward Island. 1888. {Macoun.) 



