A. VULGARIS. 75 



Flodman 881 (NY, US, type collection of A. graveolens Rydberg, minor variation 26); 

 Emigrant Gulch, Montana, Rydberg and Bessey 6201 (NY, US, type collection of A. 

 tenuis Rydberg, minor variation 80); same locality and collectors, 5201a (NY, US, type 

 collection of A. tenuis integerrima Rydberg, minor variation 81); same locality and col- 

 lectors, 6203 (Gr, NY, minor variation 30, A. incompta, Nuttall); Thornberg's Pass, 

 southern Idaho, Nuttall (Gr, Phila, type collection of A. incompta Nuttall); Mackay, 

 Idaho, Nelson and Macbride 1521 (DS, Gr, US, minor variation 26, A. graveolens Ryd- 

 berg); Doyle Creek, Wyoming, Goodding 385 (NY, UC, US, similar variation); Anita 

 Peak, northwestern Colorado, Goodding 1753 (Gr, NY, minor variation 30, A. incompta 

 Nuttall); head of Bullion Creek, Marysvale, Utah, Jones 5873 (UC, genuine); Humboldt 

 Canon, West Humboldt Mountains, Nevada, Heller 10625 (DS, Gr, NY, UC, minor 

 variation 26, A. graveolens Rydberg); trail to Mount Whitney, California, Culbertson 

 4341 (UC, genuine); near Summit, Placer County, California, Heller 12898 (SF, UC, 

 minor variation 30, A. incompta Nuttall); base of Steins Mountains, Oregon, Cusick 1990 

 (UC, form with inflorescence as in genuine discolor but foliage as in minor variation 53, 

 A. michauxiana Besser; specimens of this and the next in other herbaria are not as 

 here indicated); Steins Mountains, Oregon, Cusick 1991 (UC, A. michauxiana Besser, 

 both as to foliage and inflorescence); fissures of dry rocks near the Kettle Falls and 

 sources of the Columbia River, 1826, Douglas (NY, from type of A. michauxiana Besser, 

 minor variation 53) ; type collection, Douglas (NY, tracing and fragment from the type) ; 

 west of Skagit River, British Columbia, Macoun 769245 (NY, minor variation 53, A. 

 michauxiana Besser). 



lie. Artemisia vulgaris redolens (Gray). — Stems erect, 4 to 8 dm. high, from root- 

 stocks; lower leaves oblanceolate or obovate, twice pinnately dissected; principal leaves 

 obovate or broadly elliptic in outline, 3 to 5 cm. long, nearly as wide, dissected to the 

 midrib into spreading lobes, these commonly parted into linear spreading lobes or at 

 least toothed, the leaves of the inflorescence simply parted or entire, all sparsely tomen- 

 tulose or glabrate above and moderately white-tomentose beneath, the margins narrowly 

 revolute; inflorescence an open leafy panicle with ascending branches, 10 to 15 cm. broad; 

 involucre campanulate, 3 to 3.5 mm. high, 3 mm. broad, sparingly silky-tomentose, 15- 

 to 20-flowered {A. redolens Gray, Proc. Am. Acad. 21:393, 1886). Chihuahua, Durango, 

 and probably in other of the States of northern Mexico. Type locality, near Chihuahua 

 City, on cool slopes under cliffs. Collections: Type collection, Pringle 296 (Gr, NY); 

 same locality, Pringle 1059 (NY, UC); barranca below Sandia Station, Durango, 

 Pringle 13535 (Gr, US). 



11/. Artemisia vulgaris flodmani (Rydberg). — Stems erect, 3 to 5 dm. high, from 

 branched rootstocks; lower leaves obovate or oblanceolate, deeply cut into spreading 

 divisions which are again toothed or lobed ; principal leaves (as far as known) obovate in 

 outline, 3 to 7 cm. long, 2 to 4 cm. wide, dissected nearly to the midrib into lanceolate 

 lobes, these mostly again cleft, the uppermost leaves entire or simply cleft, all with a 

 persistent tomentum on both faces, but this denser and whiter beneath, the margins 

 revolute; inflorescence a rather dense leafy panicle 1 to 2 cm. broad (broader in one of the 

 type specimens, but this due to injury to the central axis) ; involucre campanulate, about 

 3 mm. high and broad, gray with a loose persistent tomentum, about 20- to 30-flowered. 

 {A. flodmani Rydberg, N. Am. Fl. 34:276, 1916.) Mountains of Montana, Idaho, and 

 western Wyoming, doubtful specimens also from northeastern Utah and eastern Oregon; 

 rare. Type locality, Little Belt Mountains, Montana, 9 miles east of Barker. Collec- 

 tions: Type collection, Flodman 883 (NY) ; Coal Creek, Teton Mountains, Wyoming, near 

 timber-line, Hall 11444 and 11445 (UC); same, but at 2,250 m. altitude, in the lodgepole 

 forest, Hall 11 438 (UC); Twilight Gulch, Owyhee County, Idaho, Macbride 486 (UC). 



