J68 AROIDEiE. [Arum 



2. ALISMA, X. 



1. A. Plantago. L — Mich, Am.—E.BoL t. 837 — A. trivialis. Ph, Am. 1. p. 252. 

 P. parviflora. Ph,^ and probably A. subulata. Willd, and Ph, 



Hab. Ditches and pools, Canada, to the Saskatchawan. Columbia. Dr Scouler, 



2. A. natam. L.—Ph. Am. 1. p, 253. E. BoL t. 775. 



Hab Stagnant waters of the St Lawrence. PursJu 



Ord. hi. JUNCAGINE^. Rich. 



1. SCHEUCHZERIA. L. 



1. S.palustris. L. — Ph. Am, I, p. 247. E. Bot. t 1801. 



Hab. Between Cumberland House Fort and Hudson's Bay, and upon the *• Height of Land," Rocky 

 Mountains. Dr Richardson. Brwnmond. 



2. TRIGLOCHIN. L. 



1. T. maritimum. L.—Ph. Am. hp.24^7.'E. BoL t. 255. Rich. App.p. 11. 



Hab. Cumberland House Fort on the Saskatchawan to the Rocky Mountains (probably in Salt Licks). 

 Drummo?id; and thence to the Mackenzie River. Dr Richardson; and N. W. Coast. Dr Scouler. 

 Douglas. Tolmie. Sitcha. Bongard, Labrador. Dr Morrison.~~The specimens vary exceedingly in size, 

 from 4-6 inches to 2 feet. 



2. r. palustre. L. — Ph. Am. 1. p. 247. E. Bot. t. 366. 



Hab. Marshes between Carlton House and Edmonton House Fort, on the Saskatchawan. Dr Richardsofu 

 Drummond. Labrador. Dr Morrison. Sitcha. Bongard {in Herb. nostrX 



Ord. IV. AROIDE^, Br. [including Typhe^.) 



1. ACORUS. L. 



I. A. Calamus. L.—Ph. Am. 1. p. 235. E. Bot. t. 356. 



Hab. Canada {PL), to the Saskatchawan. Drummond. 



2. ORONTIUM. Z. 



1. O. aquaticum. L.—Ph. Am. \. p. 235. Hook. Ex. Fl. \. t. 19 



Hab. Canada. Pursh. 



3. ARUM. L. 



1 . A. triphyllum. L. 



Mag, 



Hab. Canada, frequent. — This varies in the colour and markings of the spatha. 



