326 COMPOSITE, [Artemisia. 



Planta summe polymorpha. A Tanai (Don) Bashkiria, regione Altaica et Jemisea prope Kraznojarsk 

 incipiens, partem meridionalem Gub. Ircutensis et Kamtscbatka occupant atque per Americam septentrion- 

 alem late sese exteudit. 



Hab, y. North -West coast of America, Fort Vancouver, and Straits of de Fuca. J)r. Scolder. Rapids 

 of the Columbia. Douglas. — 5. et Z,. Throughout Canada, from Lake Huron, (Dr. Toddf) to Hudson's Bay, 

 (Michauzy DouglaSy) along the Saskatchavvau to the Rocky Mountains, Dr. jRichardsoriy Douglas, Drum- 

 mond: and thence to the Arctic Circle. Dr. JRichardson. — (I think this species will be found to be the A, 

 Canadensis of Nuttall, if not of Michaux ; the former compares it with A. campestrisj and says it is Pursh's 

 plant of that name. It certainly is that of Dr. Richardson : and the A. virgata. Rich., quoted by Dr. Besser, 

 is the A.frigida. — H.) 



20. A^ huttalliana (Bess,); suffniticosa, calathidibus racemoso-paniciilatis globosis, 

 periclinii squamis exterioribus lineari-oblongis marginatis, caule erecto, panicula patula, foliis 



glabris, inferioribus , caulinis basi indivisis trifidis, laciniis ramisque lanceolatis acutis. 



Bess. Monog7\ Art vied, cum ic. Bess. Draciinc. MSS. 



Ab affinibus A. caudata et A. Ammanniana differt foliis laciniisque lineari-lanceolatis acutis, ab illis et 

 A. desertontm periclinii squamis exterioribus lineari-oplongis sequilongis omnibus lateribus scariosis; a prima 

 panicula magis patula, ramulis apice foliisque cinereis subcerlceis ; a prima et tertia, foliis caulinis 3-fidis, nee 

 3-7-partitis ut in desertorum. Specimina quae vidi sunt 1 J' quorum panicula ipsa maximam partem occupat. 

 Folia 1^1" longa laciniis, ^"' latis. Calathidibus sat affinis A. Dracunculo. 



Had. Red River. Douglas^ in Herb. Lindl 



21. A. Dracunculus ; suffruticosa, calathidibus racemoso-paniculatis globosis, periclinii 

 squamis exterioribus oblongis marginatis, caule erecto, foliis radicalibus apice trifidis, caulinis 

 lanceolatis lineari-lanceolatisve Integerrimis. — Linn. Sp, PL p. 189. Bess. Draciinc, MSS. 

 — 3. glauca; fastigiata. Specimen unicum est 1^', caule rubro, ramis fastigiatis (an destruc- 

 tione apicis caulis?) junioribus incanis. Folia lanceolata, glaucescentia, at vix pubescentia 

 8"'-'' longa, r" lata, rami tecti racemis vix \\ apice cernuis, infimis 2", calathidia V", 

 periclinii squamse interiores late scariosce, Flosculi flavi, 



Hab. Plains of the Saskatchawan, Drummond. 



22. A. horealis; herbacea csespitosa villoso-sericea vel glabra, calathidibus spicato- 

 racemosis rarius paniculatis hemisphsericis, periclinii squamis ellipticis scariosis, caule 

 simplici, foliis (exceptissummis,) petiolatis, radicalibus lineari-lanceolatis integerrimis, apice 

 3-3-fidis pinnatisectis bipinnatiscctis imo supra decomposito-sectis, laciniis lanceolatis 

 linearibus vel filiformibus, caulinis bipinnatisectis pinnatisectis 5-3-fidis vel linearibus 

 integerrimis.— Pa//. It v. 3. App. n. 129. t H. h.f. 1. Less, in Schlechtend. LinncBa, v. 6. p. 

 211. Bess. Dracunc. MSS. Rich, in Frankl 1st Journ. ed. 2. App, p. 30, Hook, et Am, in 

 Bat of Beech. Voy, v, I. p. 125. — «. Purskii; sericea, cinerea; folia radicalia lineari-lan- 

 ceolata integerrima, vel apice 3-5-fida : caulina et floralia linearia ; calathidia inferiora 

 pedunculata, superiora subsessilia; periclinii squamse villosae, medio fuscescentes, flosculi 

 nudi. Caulis adscendens 6", violaceus,supernevillosissimus. A. spithamEEa. Pursh, FL Am, 

 V. 2. p, 322 ; folia prions glaberrima : caulina imo floralia inferiora 3-3-fida; calathidia omnia 

 subsessilia, periclinii squama glabrae, medio virides, Caules erecti vel obliqui, 3-5, violacei, 



