126 ERYTHEA. 
W. Dunn, June, 1891. Like ZL. albzfrons in habit and pubes- 
cence but very distinct in characters of flower and fruit. 
Lupinus tricolor. Shrubby, 2 to 5 feet high, with ascend- 
ing branches not densely leafy, ending in a long-peduneled 
and rather lax raceme a foot long or more; herbage canes- 
cently puberulent: leaflets 7 to 9, rather narrowly oblanceo- 
late, acute, not very unequal: flowers in very distinct whorls 
more than an inch apart: calyx-lips nearly equal, the upper 
one bifid: corolla 4 inch long, mainly deep violet, but the 
banner yellow as to the middle portion, soon changing to 
dark tawny red, the very margin white, changing to rose red; 
keel naked; banner notably smaller than the other petals: 
ovules 7 to 9. 
Seeds obtained in Gates’ Cafion, of the Vaca Mountains, 
Solano County, Calif., in 1891, by M. Jepson; the plants now 
flowering in the garden of the University. The species is 
allied to L. albifrons, but has good characters, and, with its 
three-colored flowers, is one of the most beautiful of lupines. 
Lupinus propinquus. Shrubby, much branched and 
bushy, usually 2 to 4 feet high, all the herbage except the 
glabrous upper surface of the leaves puberulent; racemes 
short and short-peduncled, the flowers indistinctly whorled; 
bracts squarrose-spreading, very caducous: calyx-segments 
subequal, the upper notched, often deeply so: corolla 5 lines 
long; petals subequal, violet, the banner reddening in age; 
keel strongly ciliate. 
_ This plant, known to me for some years, I formerly consid- 
ered a variety of ZL. arboreus, and in the Flora Franciscana 
so disposed of it. A better acquaintance with it has led to a 
more careful examination, followed by the conviction that it 
is a good species. Its habit is never arboreous, but always 
bushy. It bears no trace of the silkiness that marks the better 
known species. Its floral bracts being squarrose give to the 
undeveloped racemes a very different appearance; its upper 
calyx-lip (entire in L. arboreus) is often deeply cleft; and 
the violet color of the flowers is perfectly constant. Only 
the hybrids between L. arboreus and L. variicolor have the 
