FLOWERING PLANTS AXD FERXS OF ARIZONA 439 



4.000 to 4,500 feet, type from Sulphur Springs (Lemmon in 1881). 

 Known only from southern Arizona. 



Rothrock's specimens are referred by Smith to L. greenei, but they 

 correspond closely with his description of L. lemmonii. (See footnote 

 66, p. 434, Smit'h, p. 125.) The stems are apparently slightly woody 

 toward the base. Except in the closely appressed pubescence, this 

 species greatly resembles L. palmeri, to which Pringle's collection was 

 referred by Smith. 



16. Lupinus argenteus Pursh, Fl. Amer. Sept. 468. 1814. 



Carrizo Mountains and White Mountains (Apache and Greenlee 

 Counties), Grand Canyon, San Francisco Peaks, Flagstaff, etc. 

 (Coconino County), 7,000 to 10,000 feet, mostly in open coniferous 

 forests, June to October. North Dakota and Montana, south to 

 Xew Mexico and northern Arizona. 



Five varieties, all based on types from the Flagstaff region, are 

 described by Smith. (See footnote 66, p. 434, Smith, pp. 133-135.) 



17. Lupinus barbiger S. Wats., Amer. Acad. Arts and Sci. Proc. 



8: 528. 1873. 



Kaibab Plateau to the south rim of the Grand Canyon (Coconino 

 County), 8,000 to 8,600 feet, August. Colorado, Utah, and northern 

 Arizona. 



L. barbiger is given as a synonym of L. sericeus Pursh by Smith. 

 (See footnote 66, p. 434, Smith, p." 138.) 



18. Lupinus hillii Greene, Leaflets 2: 236. 1912. 



Kaibab Plateau (Coconino County) to southern Apache and north- 

 ern Gila Counties, 6,000 to 9,000 feet, often very abundant in yellow 

 pine forests in the Flagstaff region, May to September, type from the 

 Coconino National Forest (Hill in 1911). Known only from northern 

 Arizona. 



This species resembles L. palmeri except in the smaller and usually 

 more numerous and crowded flowers. Greene (ibid.) stated: "the 

 flowers are the smallest known among those of perennial lupines." 

 The type of L. ingratus Greene var. arizonicus C. P. Smith, from the 

 Grand Canyon (Eggleston 15664), seems to the writers to be L. hillii. 



19. Lupinus palmeri S. Wats., Amer. Acad. Arts and Sci. Proc. 8: 



530. 1873. 



Kaibab Plateau (Coconino County), Hualpai Mountain (Mohave 

 County), southward through Yavapai and Gila Counties to the moun- 

 tains of Pima County, 4.000 to 8,000 feet, mostly in yellow pine forests, 

 May to October, type from near Prescott (Palmer 754). Xew Mexico 

 and Arizona. 



The commonest and most widely distributed of the perennial lupines 

 of Arizona, Two varieties, based on tvpes from Coconino Count v. are 

 described by Smith. (See footnote 66, p. 434, Smith, p. 126.) 



Apparently nearly related to L. palmeri is L. osterhoutianus Smith, type from 

 near the Grand Canyon (Osterhout 6971), described as having stems with short 

 velvety pubescence and whitish foliage. (See footnote 66, p. 434, Smith, p. 126.) 



20. Lupinus blumeri Greene, Leaflets 2: 23. 1909. 



Pinaleno, Chiricahua, Huachuca, and Santa Rita Mountains 

 (Graham, Cochise, and Pima Counties), 6,000 to 8,000 feet, April to 



