Alms.} \ AMENTACE.E. 15T 



trifidis lobis oblongo-subobovatis subaequalibus. E. Bot. t 349. Ph. Am. 2. p. 622. 

 &, 'flahellifolia ; foliis cuneato-fiabeliiformibns dentlbus profundi's acutis. 



Hab. Sphagnous swamps, Hudson's Bay and Canada. Michaux, Labrador. Dr Morrison, Miss Bren- 

 ton. Fort Franklin on the Mackenzie River. 7>r Richardson. Kotzebue's Sound. Chamisso {in Hevb. 



nost.) Beechey |3. Newfoundland. Mr Co^nzacA.— Smaller in all its parts than the preceding, and the 



leaves coristantl)' more orbicular, and nearly sessile. The scales, too, of the female amentum appear to be 

 more deeply cleft, and the segments more equal.— /3. is a very beautiful variety, with broadly cuneate leaves, 

 semicircular at the extremity, and, there only, deeply, regularly, and sharply toothed. From Sweden, Mr 

 R. B. Bowman has sent me B. nana, with the young branches decidedly pubescent, thus bearing the same 

 relation to the usual state of the plant, that B. pumila does to B. glandulosa, 



4. ALNUS. Z. 



1. A, glutinosa. Gcertn.—E. Bot U 1508. Ph. Am. 2. p. 622. 



Hab. Interior of Canada and the N. W. Coast. P^.— Willdenow gives this as a native of N. America, 

 and Pursh speaks of this as '* a large tree, known every where under the name of Alder " but I have seen 

 nothing like our common Alder from any part of N. America, and I presume the A. viridis has generally 

 been mistaken for it. 



2. A. crispa (Ait. H. Kew. ed. 1. v. S. p. 339); pedunculis ramosis, foliis ovatis acutis 

 subundulatis, venis subtus pilosis, axillis nudis, stipulis subrotundo-ovatis.— B. crispa. 

 Mx. Am. 2. p. 181. Ph. Am. 2. p. 623.— A. undulata. Willd. 



Hab. Newfoundland and Hudson's Bay. Aiton.— O? this I know nothing, unless it be, as Nuttall has 

 suggested (in Herb, nosfr.), a state of A. incana. 



3. A. viridis (DC.) ; foliis ovatis acutis ad margines inciso-sublobatis argute ina^qualiter 

 serratis utrinque glabris v. ad venas subtus pilosiusculis et nunc in axillis venarum lanatis, 

 amentis junloribu'^ cylindraceis, fructiferis ovalibus. Cham, in Linn<Ba, 6. p. 538.— Betula 



ovata. SchranL— Willd Alnus incana, glabrifolia. Hook, et Am. in Bot. of Beech, p. 1 17 



and 129.— A. glutinosa. Bich. App. p. 36. an Ph. ?—^. foliis majoribus marginibus magis 



inciso-lobatis. 



Hab Canada, throughout the woody and barren country, and to the Rocky Mountains. Dr Richardson. 

 Drummond. Sitcha. Bongard. Kotzebue's Sound, Chamisso, Beecher^.-^ N. W. America, from the 

 mountains to the sea. Douglas. Scouler. Tolmie.-The specimens of «. correspond entirely with the 

 European plant of the same name, and the exactly ovate acute leaves, finely and deeply serrated, and the 

 longer, cylindrical, and (apparently) green, young female catkins, will readily distinguish it from A. glutinosa. 

 DrVicbardson's specimens, from his first journey, have the leaves quite young ; but I think I cannot be 

 mistaken in referring them here. The Columbia specimens have the leaves usually large, but retaimng their 



true character. 



4. A. iHcawa (Willd.) ; foliis ellipticis subovatisve integris vel margine obscure lobatis 

 obtiisis vel acutiusculis argute serratis subtus pubescentibus, amentis junioribus cylindra- 

 ceis. fructiferis ovalibus.-Betula incana. L.-PalL Boss. I. p. 64.-/5. foli.s subtus ad 

 nervos pilosis v. etiam glaberrimis.— Betula serrulata. Ait. Hort. Km. ed. 1. p. 338. 



Alnus. Ph* 



Hab ^ and ^. throughout Canada {Mrs Sheppard), to the Saskatchawan and Fort Franklin. Dr Rich- 

 ardson. Douglas. Drummond. New Brunswick. Mr Kendal. Newfoundland. Miss Brenton.-Th^ 



