Vol. 50¥ | No. 5 
BULLETIN 
~ . OF THE 
TORREY BOTANICAL CLUB 
MAY, 1923 
Studies in the genus Lupinus—VIII. Lupinus nanus 
CHARLES PIPER SMITH 
(WITH SIX TEXT FIGURES) 
The single species treated herein is the largest-flowered 
species of the Micranthi, the specific name applying to the stature 
of the plant, in its reduced forms, and not at all to the size of 
the flowers. 
1a. LuPINUS NANUS Dougl.; Benth. Trans. Hort. Soc. Lond. 
IT. 1: 409. 1835. [F1G. 79.] 
Lupinus affinis Agardh, Syn. Gen. Lup. 20. 1835. 
Annual, erect, 20-60 cm tall, simple or branched at the base, 
more or less villous and minutely spreading- or appressed- 
pubescent; leaves well scattered, or crowded by the develop- 
ment of axillary clusters; petioles slender, 4-8 cm. long; stipules 
subulate, 4-8 mm. long; leaflets five to seven, linear to spatulate, 
acute to rounded at the apex, 15-30 mm. long an mm 
wide (rarely 30-45 X 10-16 mm.); peduncles 4-8 cm. lon ng, 
scarcely ets the see greets 6-20 cm. long, loosely 
eB flow: whorled, mm. aaa bracts deciduous, 
emarginate at apex, ats lea wings mostly concealing the 
keel, which is slender, usually not much curved, ciliate on the 
ese edges ane the slender apex; pods appressed-pubescent, 
O-3 m. wide, ovules usually four to eight 
techy eight fa FEENEY: seeds 2—3 mm. long, usually well marked 
[The BuLLeTIN for April (50: 133-158. pl. 5-7) was issued April 7, 1923.] 
159 
