1915] ABRAMS & SMILEY—ERIODICTYON 129 
Dudley, December 25, 1903; near San Jacinto, Leiberg 3214; Berg, April 3, 
1904; Menifee, Miss King, 1893. San Diego County: San Diego, Barclay 
(type); Cooper 498; Palmer, 1875; Pringle, April 26, 1882; Dunn, April 21; 
Jones 3143; Mission hills, near San Diego, Abrams 3432; Point Loma, Chandler 
5067 (this specimen resembles the less tomentose form of the Los Angeles 
region, a condition undoubtedly due to the greater humidity on the promontory 
than on the adjacent mainland); Encinatas, Brandegee, March 28, 1894; 
Witch Creek, Alderson, April 1894; San Ysabel, Henshaw 148; near Benning- 
ton, Dudley, January 1908. 
5a. ERIODICTYON CRASSIFOLIUM NIGRESCENS Brand, in ENGLER, 
Pflanzenreich 59:140. 1913. 
Leaves smaller and comparatively narrower, dull gray green 
with a shorter and much less dense tomentum, usually crenate- 
dentate: corolla narrowly funnelform, about 6 mm. long, white 
and densely hairy without. 
This variety is intermediate between crassifolium and trichocalyx. The 
intergradation with typical crassifolium is complete but less marked with 
trichocalyx, although the form originally described by Gray as angustifolium 
var. pubens partakes of both and might be placed in either category. 
YPE LOcALITy.—Acton, Los Angeles County. 
ISTRIBUTION.—Chaparral-covered slopes of the Liebre and San Gabriel 
mountains, ncn in the Soledad Pass region. 
SPECIMENS EXAMINED.—Acton, Elmer 3596, 3598; Kings Canyon, Liebre 
Mountains, Dudley and Lamb 4343; Oakgrove Canyon, Liebre Mountains, 
Abrams and McGregor 322. 
5b. ERIODICTYON CRASSIFOLIUM denudatum Abrams, var. nov. 
Leaves 10-15 cm. long, 2-3.5 cm. wide, flat and more or less 
dentate on the margins, green and glabrate but not evidently 
glutinous on the upper surface, soft tomentose beneath, as also the 
branches and inflorescence: calyx densely clothed with silky hairs, 
about one-third the length of the corolla tube: corolla lavender, 
densely pubescent without, 8—-ro mm. long. 
This variety is the extreme type of the crassifolium group; it merges into 
the variety nigrescens and through the Los Angeles form into typical crassi- 
folium, while the denuded upper surface of the leaves suggest close affinity 
with californicum. It occurs in the cross ranges of Santa Barbara and Ventura 
counties, the region from whence californicum, crassifolium, and trichocalyx 
diverge. It is natural, therefore, according to the Jordan law, that we should 
find here the intermediate forms. 
