204 Smitn: STUDIES IN THE GENUS LupInus—VII 
(Type, UC 83498);San Julio, April, 1889, 7. S. Brandegee (UC), 
and April, 1919, T. S. Brandegee (CA). 
MICRANTHI 
L. micranthus and its nearest relatives comprise the largest 
-and most difficult group of the annual species of the subgenus 
Lupinus Watson. Variations in shape and size of flowers, 
leaflets, pods, and seeds produce conspicuous extremes which 
have suggested ‘‘new species’? not a few in number. That 
botanists have appreciated these variations is evidenced by the 
following list of published names: 
bicolor Lindl. Bot. Reg. 13: pl. r109. 1827. 
micranthus Dougl.; Lindl. Bot. Reg. 15: pl. 1251. 1829. 
nanus Dougl.; Benth. Tran. Hort. Soc. II. 1: 409.. 1835. 
affinis Aga rdh, Syn. Gen. Lup. 20. 1835 
Aduebornii S. Schauer, Linnaea 20: 739. 1 1847. 
micranthus microphyllus Wats. oe Am. Acad. 8: 535. 1873. 
niveus W thid. 11: I 876. 
irifidus Torr.; Wats. ibid. 12: 0, 1877. 
chihuahuensis Wats. ibid. 21: 1886. 
carnosulus Greene, Bull. Cal. Read 3 Rae 1886. 
umbellatus Greene, ibid. 2: 145. 
packs Greene, Pittonia I: 65. “187 
polycarpus Greene, thid, 2: 171. 
bee so Eastwood, Proc. Cal. Acad. IL ve Pa pl. 56. 1896. 
persistens Heller, Muhlenbergia 2:62. 1905 
vallicola Heller, ibid. 4: 40. 1908. 
apricus Greene, Leaflets 2: 67. 1910. 
vallicola apricus C. P. Smith, Muhlenbergia 6: 135. I9QII. 
hirsutulus Greene, Leaflets 2: 152. IgII. 
Ee oe eee 
strigulosus Gandoger. Bull. Soc. i ree 461. 1913. 
In addition to accounting for these published names, the 
scope of these papers will necessitate disposing of some seven 
herbarium names. Of the above, only one species will be treated 
at this time, the remainder being scheduled for attention in 
subsequent papers. 
The name Bicolores would have been a more appropriate 
appellation for this group; but the name here employed has been 
in use for some time. The flowers measure 6-16 mm. in length 
and are always bicolored but are certainly not always small. 
They are usually verticillate; but the racemes are sometimes 
reduced to one umbel-like whorl, and in one form the flowers 
are strictly scattered. The keel is normally ciliate on the upper 
