94 SMITH: STUDIES IN THE GENUS LUPINUS—X 
own collection, especially since the actual type locality of same 
is unknown. 
5. LupINUS PACHYLOBUS Greene, Pittonia 1: 65. 1887. 
Fig. 93. 
Lupinus micranthus pachylobus (Greene) Jepson, Fl. West. Mid. 
, Oa. 32 316.-" 1901: 
Annual, Guano 10-30 cm. tall, usually branched at the base, 
villous with spreading hairs 1-2 mm. long; leaves several, not 
crowded ; iiieles slender, 6-8 cm. long; stipules subulate, 7-10 
mm. long; leaflets six to eight, linear-oblanceolate to elliptic- 
oblanceolate, 15-25 mm. long by 2-4 mm. wide, hairy on both 
sides; peduncles 6-8 cm. be racemes loose, of two to four 
~ / 
; 
Cm. i 2, 
Fig. 93. Lupinus pAcHyLoBus Greene. 1. E. B. Copeland, Baker dis- 
tribution 3043, Butte County (US). 2. A. A. Heller 10,682, Butte County 
& 3. C. P. Smith 3232, Santa Clara County (CPS). 
whorls; flowers few, 6-8 mm. long, sometimes almost scattered; 
bracts shorter than the calyx, early deciduous; pedicels short, 
I-2 mm. long; calyx much shorter than the petals, its upper lip 
bifid, pe mm. long, lower lip usually three-toothed, broad, 3-5 
mm. long; petals blue, except the white center of the banner, 
which is Bae rec i 6-8 mm. wide, usually as wide as long, 
wings mm. long and a ie mm. wide; keel non-ciliate, 
somewhat arcuate, with slender acumen; pods especially ae 
25-30 mm. long, mm. wide, usually thick and succulent w 
ie svnieg four to six; seeds 4-5 mm. long, 3-3.5 mm. wide: 
Be n, more or less marked with darker brown lateral and 
nal lines; roots slender, much shorter than the stems; 
porn ne of the seedlings about 15 by 10 mm., with petioles 
about 5 mm. long (Heller 11,150). 
While I feel justified in maintaining this as a distinct species, 
I must admit that certain forms of L. bicelor, in flower, approach 
