330 COMPOSITE. [Aruka. 



I 



Hab. Labrador. Kohimeister, (in herb, nostr.) York Factory, Hudson's Bay, Douglas; throughout 

 the Barren Regions to the elevated Rocky Mountains, Drummond; and to the extreme Arctic regions, Z>r, 

 Richardson, Parry^ §-c. — The male plant, which is very i-are, with dense and more woolly foliage, and less 

 g-lossy inner scales, is found at Fort Norman by Dr. Richardson. Sources of the Columbia, Douglas, Una- 

 laschka. Chamisso, (in herb, nostr.) Kotzebue's Sound. Lay and Collie. 



+ 



4. A. dioica ; stolonibus reptiintibus, foliis subtus prrecipue tomentosis, radicalibus spathu- 

 latis basi obscure trinerviis, caulinis lineari-lanceolatis, caiile siniplici, floribus corymboso- 

 capitatis dioicis. Br. in Linn, Trans, v, \2. p. 123. Rich, in Frankl. Istjourn, ed, 2. App, 

 p, 30, — Gnaphalium diolcum. Linn. — EngL Bot t 26T. 



Hab. From Canada, {Lady Dalhousie^ to the extreme Arctic regions; and from Newfoundland (Miss 

 Brenton) and Labrador, (Morrison) to the dry mountain pastures of the Rocky Mountains. Drummond, 



5. A, plantaginifolia ; stolonibus reptantibus, foliis subtus pn'ecipue niveo-tomentosis, 

 radicalibus ovato-spathulatis albis trinerviis, caulinis lineari-lanceolatis, caule lanato simplici, 

 floribus coiymboso-capitatis dioicis, involucri squamis interioribus obtusis opacis, calycibus 

 dense lanatis. Br, in Linn, Trans, v, 12. />. 123, Mich, in Frankl. 1st Journ, ed. 2, App^ 

 p, 30, — Gnaphalium plantaglnifolium. Lin7i. — Pursh, Fl. Am, v. 2, p. 525. — G. dioicuin, 

 var, plantaginifolium. Mich. Am. v, 2. p. 128. 



Hab. From Lake Huron, (Dr. Todd,) and throughout the woody country, to lat. 54" (Dr. Ricliardson^ 

 Drummond) ; and from Hudson's Bay to the mountain sources of the Columbia. Douglas, Dr. Richardson, 

 Drummond. 



6. A. racemosa ; stolonibus reptantibus, foliis supra cauleque simplici glabris subtus albo- 

 tomentosis, radicalibus ovato-spathulatis, caulinis lineai-i-lauceolatls, floribus racemosis 

 dioicis, racemis laxis subcompositis, involucri squamis omnibus obtusis nitidis "'laberrlmis, 



Hab. Alpine woods of the Rocky Mountains. Drummond. — This is more distinct from A. plantagini- 

 folia than that is from A. dioica. The upper side of the foliage, the stem, and involucre ai'e quite destitute of 

 tomentum, and the flowers form lax racemes, their pedicelis often again divided. In many respects this plant 

 bears the same relation to A. plantaginifolia which A. alpina does to A. dioica. 



t 



Subtrib, Senecionie^.. Capitula nunquam dioica; si heterogama, floribus marginalihiis 

 fcemineis, scBpisslme uniserialibus^reUquis ^ . Pappus setaceus, inultiradiatus, subcequalis; 

 corollm floribus ? aut lingulatce aut rarius filiformes. Anther m ecaudatce. Less, 



49. ARNICA. Linn. 



Capitulum radiatum. Pappus conformis, setaceus, unlserialis. Stylus disci ramis pube 

 longe descendeute obsessls, truncatis, aut cono brevi superatis, — Herbte perennes^ in Europa 

 vel in Asia et America boreali crescentes; foliis oppositis, integris^ magis niinusve ^hirsutis ; 

 capiiulis magnis luleis, caulem ramosve superne aphyllos terminantibus^ solitariis vel ternis ; 

 involucris campanulatis, biserialibus. Less. 



1 . A, inontana ; foliis oblongis lanceolatisve parallelim nervosis dentatis intetyerrimisve, caule 

 nm-^ixxicx^ovo.—Linn.—^.angustifoUa; foliis angustloribus.— A. montana, /S. alpina. Linn. 

 —Br. in Parrijs Voy. App. p. cclxxix. Rich, in Frankl \st Journ. ed. 2. App, p. 30,— A. 

 angustifolia. Vahl, in Ft, Dan. t 1524. Hook, et Am, in Bot, of Beech, Voy. v, \, p. 126. 



A. alpina. Less, in Linnma, v. 6. p. 235, and probably A. obtusifolia, Less, and A. Una- 



