MUNZ AND JOHNSTON: PLANTS OF SOUTHERN CALIFORNIA 297 
laxiflorum (Gray) n. comb.,* may be distinguished by its very 
branched lax inflorescence. 
/ Styrax officinalis var. fulvescens (Eastw.) comb. nov. 
Styrax californica var. fulvescens Eastw. Bot. Gaz. 41: 286. 
1906 
SANTA BARBARA County: Santa Barbara, 1873, Bolander 
(G); Santa Inez Mts., 1891, Dunn (B); Painted Cave Ranch, 
Eastwood 33 (G). Los ANGELES County: “Los Angeles,” 
1879, Nevin (G). SAN BERNARDINO CouNTy: Waterman 
Canyon, Parish 11389 (B), Munz 2228 (B), 1916, Crawford (B); 
City Creek, Johnston 2857 and 2935 (B); Devil Canyon, 1904, 
Wilder (B); San Bernardino, 1896, Cummings (G); Wright 210 
(G); without locality, 1876, Parry & Lemmon 226 (G). ORANGE 
County: Trabuco Canyon, 1903, Bradshaw (B), Peirson 3493 
(B). San DrEGo County: Mesa Grande, Spencer 1147 (B, 
Perkins (Pflanzenr. iv. Fam. 241, 10 and 80. 1907) has 
treated S. californica Torr. and S. californica var. fulvescens 
Eastw. as-identical with S. officinalis L., a species of the Mediter- 
ranean region of the Old World. Styrax officinalis is, indeed, 
very closely related to the Californian plants, particularly so to 
typical S. californica. The latter has the same shape of leaf 
and similar flowers, differing from the Mediterranean species 
chiefly in pubescence, being glabrate or lightly tomentose on 
the under side leaf-surfaces instead of closely and densely white- 
tomentose. In certain material from Greece, however, the 
pubescence is similar to the densest produced by S. californica. 
In S. californica var. fulvescens, and in the pubescent forms of 
S. californica the pubescence is dimorphic on the veins and mid- 
rib, dark colored trichomes (appearing as glandular atoms to 
the unaided eye) being scattered among and projecting above 
the pallid mass of the tomentum. These trichomes are present 
in the European material, but are not dark-colored. The style 
in the Mediterranean plants appears to be less compressed than 
in the American material and is less evidently lobed. Since 
the only differences detectable between the European and 
* Malvastrum Thurberi var. laxiflorum Gray, Proc. Am. Acad. 22: 291- 
1887. M: splendidum annie Proc. Calif. Acad. Sci. 1: 65. 1855. Malaco- 
thamnus f us Splendidus Abrams, Bull. N. Y. Bot. Gard. 6: 417. IgIo. 
