Vol. 45 No. 5 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
MAY, 1918 
Studies in the genus Lupinus—Ill, Lupinus densiflorus 
CHARLES PIPER SMITH 
(WITH TEXT FIGURES 17-42) 
Having, in my last paper, disposed of all the other species of 
the Microcarpi, I will confine this paper to my discussion and 
classification of L. densiflorus and its numerous varieties. 
6. LUPINUS DENSIFLORUS Benth. Trans. Hort. Soc. II. 1: 410. 
1835. [FiG. 17.] 
The original description reads: 
. annuus, caulibus adscendentibus basi foliosus foliisque subsericeo-pilosis, 
foliolis oblongo-spathulatis, verticillis numerosis approximatis 6-10 floris, sh 
ebracteatis, calycis labiis stapes ce superene membranaceo inferiore piloso dup 
cigar leguminibus villosis disperm 
he flowers, which grow in aes whorls, are om delicately stained with 
oe they are also a little speckled at the base of the vexillu The leaves are closely 
clustered atone are covered with fine soft hairs, and a has about nine narrow 
divisions. The stem does not grow above six or seven inches high 
is species nie hitherto produced its seeds, which are of an olive green, smooth, 
and minutely dotted with black, in very small quantity. It is probable that it re- 
quires shade 
In the same year Lindley, in the Botanical Register (20: pl. 
1689), published a very interesting plate of L. densiflorus (see Fic. 
17), and, in addition to quoting Bentham’s description, gave a 
description of his own. From this I quote: 
Annuus; caulo erecto .. . villoso, in spontanea pedunculo communi multo™ 
breviore . . . foliolis in sis cickeinians pedancals adapts eulta eo: ree 
erticilli villosissimi, 6-10 flori . - 
Calyx villosus, in cultu tantum ca teegcetia? bracteolis setaceis labii superioris seniei- 
[The BULLETIN for April (45: 133-166, pl. 6) was issued May 1, r918.] 
167 
