SMITH: STUDIES IN THE GENUS LUPINUS 193 
wonder if this particular specimen was not labelled on the kasis of 
the collectors and part of the date (22 April), rather than with 
careful regard to the description of var. aurea. 
Var. palustris shares with typical L. subvexus a pronounced 
tendency toward a covering of long loose hairs, those of the calyx, 
especially, being 2-4 mm. long. The “palustris varieties” of 
L. densiflorus, however, may be distinguished from the varieties 
of L. subvexus by the position of the flowers soon after anthesis, 
the flowers soon turning up in L. subvexus, without becoming 
secund, as is so frequent in many varieties of L. densiflorus as the 
fruits develop. Some of the extreme ‘palustris variations’’ are 
below designated as separate varieties, most of which have com- 
monly been labelled as L. microcarpus. One of these, however, 
has been named, but not described, by Miss Eastwood. 
_To supplement Kellogg’s and Agardh’s descriptions, I would 
mention the following diagnostic points: 
Flowers spreading in anthesis and later; calyx usually ebracteo- 
late, 12-13 mm. long, bushy-villous below, especially on the cup, 
the hairs 2-4 mm. long, upper lip various but usually large, about 
3 mm. long, lower lip inflated near base, 3-4 mm. wide, two- 
toothed, with or without an interstitial vestige; petals white or 
tinted with pink or purple; banner rounded apically, 15-17 mm. 
long, 8 mm. wide, rather abruptly contracted at base, the basal 
inflation more or less’saccate, pressing the upper lip backward; 
wings 13-15 mm. long, sometimes ciliate at the free edges above; 
keel 11-13 mm. long, slightly to considerably arcuate; pods 14- 
16 mm. long; seeds probably dull yellow, sparsely speckled with 
dark brown, about 5 x 4 mm. (DS 9588). 
CALIFORNIA. County not given: San Joaquin River, Apr., 
1869, A. Kellogg (G); San Joaquin River, 22 Apr.,. 1870, A. 
Kellogg & S. Brannan, Jr. (G); no data (DS 9588). Contra Costa 
County: Antioch, Apr., 1895, J. B. Davy (UC). Alameda County: 
vicinity of Berkeley, May-June, 1906, H. A. Walker 173 (UC); 
Berkeley, June, 1894, W. S. Blasdale (US). Santa Cruz County: 
Watsonville coast, 13 Apr., 1902, C. F. Baker 3009 (US, NY, G). 
Monterey County: Monterey, T. Hartweg 1692 (G); Monterey, 
J. Gi Cooper (US); dry ravine, Monterey, May, 1850, C. C. Parry 
(T). 
