300 MUNZ AND JOHNSTON: PLANTS OF SOUTHERN CALIFORNIA 
Downingia concolor Greene 
Jepson (Madrofia 1: 101. 1922) in his excellent recent 
revision of the Californian Downingias does not report this 
species from Southern California, but the following material, 
which differs from the subjoined species in having two nipples 
and two purple spots at the faucal edge of the lower corolla-lip, 
as well as having the lateral corolla-sinuses cut below the plane 
of the limb, is either D. concolor Greene (Bull. Calif. Acad. Sci. 
2: 153. 1886) ora closely related undescribed form. 
SAN DigEGo County: Margin of Cuyamaca Lake, Abrams 
3851 (G); in shallow water, Cuyamaca Valley, Parish Bros. 394 
(G); in pools on the mesas, May 5, 1920, Spencer 1073 (B). 
’ Downingia immaculata sp. nov. 
m 
long, 1.5-2.5 mm. wide; sepals linear, ascending or erect, equal- 
ling or exceeding the length of the corolla-tube; corolla predomi- 
lobes narrow, acute, paralleling or slightly spreading, curving 
y if at all cut below 
partially exserted, practically straight, cylindrical, ca. 2.5 
times as long as thick 
RIVERSIDE County: On desiccated clay mud-flat south of 
Lake Elsinore, alt. 1250 ft., April 29, 1922, Munz 5093 (TYPE, 
Baker Herb. 13766); Perris, 1922, Banning Flower Show (B); 
rare on desiccating mud-flat, Menifee Valley, alt. 1350 ft., 
Munz & Johnston 5380 (B). SAN Dieco County: In clay 
depressions on the mesas, San Diego, T. S. Brandegee (Baker 
distribution) 1668 (B, G); wet places around shallow pools, 
6 mi. north of San Diego, Peirson 33094 (B); in pools on Camp 
Kearny road, San Diego, alt. 400 ft., April 16, 1919, Spencer 1073 
re es places on mesas, near San Diego, Abrams 3445 
This is the most common Downingia in Southern California 
and that which has mainly passed as D. pulchella (Lindl.) Torr. 
