396 SMITH: STUDIES IN THE GENUS LUPINUS 
New Mexico. San Miguel County: near Pecos, Aug., 1908, 
P. C. Standley 40974, 4975 (NY, US). McKinley County: Rio 
Zuni, July, 1892, E. O. Wooton (US 735190 and 562216). 
SESS ( 
OI 
Fic. 45. Lupinus KINGU ARGILLACEUS (Woot. & Standl.) C. P. Smith. 1. 
P.C. Standley 4975 (US); 2. E. O. Wooton (US 562216); 3. J. Wolf 195 (US). 

CoLtorabo. Mesa County: Loma, Rio Grande, Sept., 1873, 
. Wolf 195 (US). 
mM 
. LUPINUS BREVICAULIS Wats. Bot. King’s Report 53. 1871. 
[Fic. 46.] 
Lupinus dispersus Heller, Muhlenbergia 5: 141, 1909. 
Lupinus scaposus Rydberg, Bull. Torrey Club 34: 45. 1907. 
Low, less than 1 dm. tall, densely villous, stems short, seldom 
over I cm. long; leaves crowded basally, glabrous above: peduncles 
3-6 mm. long, the subcapitate racemes about 2 mm. long, com- 
monly elongating after anthesis; flowers 6-8 mm. long, crowded; 
pedicels 1-2 mm. long, villous; calyx bracteolate, villous, upper 
lip 1-2 mm. long, truncate, two-lobed or bifid, lower lip 4-6 mm. 
long, two- to three-toothed, or rarely entire; petals bright blue or 
pale-tinted, banner about 6 mm. long, 2-4 mm. wide, apex angled 
or rounded, wings 4-6 mm. long, 2 mm. wide, keel 4-6 mm. long, 
straight; pods ovate, about 10 mm. long, ovules two or three, 
seeds 2 mm. long. 
From the first I experienced difficulty in attempting to follow 
others in separating L. brevicaulis and L. dispersus. Careful 
attention to the original descriptions shows few differences brought 
out, except as to the calyx-lips. 
Quoting from Watson: 
. upper lip very short, truncate, obsoletely toothed, membranous, lower 
entire or obscurely toothed. 
Quoting from Heller’s ideaees of his species: 
