142 ULMACEiE, 



ICeliis. 



densis, unless it be that the latter is the taller plant of the two. Pursh describes it as monoecious, but all my 

 specimensj both from British America and from the United States, are truly dioecious, as observed by Linnaeus. 

 The fibre of the stem is copious and strong, and Mr Whitlaw endeavoured to recommend it to this country 

 as an article of commerce. 



2. BCEHMERIA. X. 



(WiUd 



floribus dioicis, spicis masculis glomeratis interruptis, foemineis cylindricis, caule herbaceo. 

 Ph, Am, 1. p, 112. — Urtica cylindrica. L. — jS, spicis brevioribus subcapitatis. — Urtica 

 capitata. L.? — PL Am. h p. 113. 



Hab. a, and ^. Canada. Ph. Clegkorn, Dr Holmes, — I have already, in my account of Mr Drummond's 

 plants from the Southern United States, observed that I consider the Urtica capitata as a mere var. of BceJi- 

 meria cylindrica. 



3. HUMULUS. L. 



1. H. Lupulus. L,—E. Bot. t 427. Ph. Am. 1. p. 199. 



Hab. Plentiful on the higher parts of Red River, and on the Assinaboine in the 49th !at., which is its 

 northern range, and where only in favourable seasons it perfects its fruit. Douglas, New Brunswick. Mr 

 Kendal. 



4. CANNABIS. Z. 



1. C. sativa. L. — Ph. Am. I, p. 199. 



1 Hab. Canada. Mrs PercivaL Lake Huron. Dr Todd. 



Ord. lxxxvil ULMACE^. 



1. ULMUS. Z. 



1, U. Americana. L, — Mich. N. Am. Sylv.* S.p. 83. t 126. Ph. Am. 1. jo. 199. 



Hab. Canada. Ph. — Saskatchawan to York Factory, Hudson's Bay. 



r 



2. U.fulva. Ph. Am. 1. p. 199. 



—I 



Hab. Canada, Ph. Drummond. — Leaves of what I take to be this, and flowering specimens of two species 

 of Elm, are in the collection, but they cannot be determined satisfactorily. 



2. CELTIS. L. 



r 



1. C. occidentalism L. — Mich N. Am. Sylv. B.p. 45. t. 114. Ph. Am. I. p. 200. 



Hab. Canada. Ph. On the rocky banks of the Columbia River, N. W. Americai in the driest places, 

 where no other tree can live. Douglas. 



■ The edition from which I quote is that of ** Philadelphia, 1819. 



» 



