12 SMITH: STUDIES IN THE GENUS LUPINUS 
3b. Lupinus horizontalis platypetalus var. nov. [Fic. 6.] 
A L. horizontali differt partibus omnibus florum majoribus 
latioribusque; vexillo 15 x 11 mm., alis 15 x 7 mm., carina 12 x 4 
prope 3.5 X 3 mm. crassis. 
All the floral parts are 
much larger and broader 
than in the typical form of 
the species, and the outer 
branches are apparently 
not prostrate. The seeds 
are of a buff ground, mar- 
bled with purplish brown. 
CALIFORNIA. San Ber- 
Fic. 6. LUpiINUS HORIZONTALIS PLATYPET- : 
Hee €. built. Boll & Chosdier ds60. coc, NaTdina. County: cabterd 
127206). base of Fremont’s Peak, 
Mojave Desert, 6 May, 
1906, Hall & Chandler 6860 (TypE, UC 127296); Mojave Desert, 
May, 1882, S. B. & W. F.Parish 1271 (G). Kern County: near 
Randsburg, May, 1913, K. Brandegee (UC). 
Platypetalus is Greek for ‘‘ broad petal.” 
4a. LUPINUS SUBVEXUS C. P. 
Smith, Bull. Torrey Club 
44: 405. 1917. [Fic. 7.] U 
The following is a part of 
the original description: Serer 
lous, the hairs 2-4 mm. long; whorls 
3-7, well- separated; flowers spread- ee 
ing in anthesis, evidently ascending 
to suberect later; calyx ebracteolate, 
quite villous below; pods not secund. 
The typical plant has the lower lip of 
the calyx evidently inflated (subsac- 
cate) near the base, large flowers with 
much of the banner and wings dark 
purple, and the banner rounded apic- 
ally. Most of the varieties have the 
lower calyx-lip scarcely or not at all inflated and smaller flowers with the banner 
gradually narrowed to an acute apex. 
i cm. 
Leen ene TEED 
Fic. 7. Lrprnus susvexus C. P. Smith. 
Heller & Brown 5415 (DS 9586). 
