STANDLEY—ALLIONIACEAE OF THE UNITED STATES. 363 
2a. Hesperonia aspera villosa Standley. subsp. nov. 
Different from the type in having the stems clad with an abundant soft vil- 
lous instead of a harsh and glutinous pubescence, the leaves more or less villous 
and obtuse or broadly rounded at the apex, and the flowers large, with exserted 
stamens, 
Specimens examined: 
CALIFORNIA: Mohave Desert, 1901, Parish 4940, type; Providence Mountains, 
1902, Brandegee; Argus Mountains, 1891, Coville € Funston 741. 
3. Hesperonia tenuiloba (S. Wats.) Standley. 
Mirabilis tenuiloba S. Wats. Proc. Am. Acad. 17: 375. 1882. 
Readily recognized by its robust habit, large leaves and stems, and narrow 
bracts. 
Specimens examined: 
CALIFORNIA: Coyote Wells, Colorado Desert, 1905, Brandegee; Palm Creek, 
1895, Brandegee; Mountain Spring, San Diego County, 1894, L. Schoen- 
feldt 3070; same locality, 1894, Mearns 3017. 
LOWER CALIFORNIA: Signal Mountain, Colorado Desert, 1901, Brandegee. 
In the national herbarium there are two sheets of a Hesperonia labeled 
Mirabilis tenuiloba, collected in the Colorado Desert, 1889, by W. G. Wright. 
This is the type locality and the collector is the same as the collector of the type. 
I am not certain, however, that these belong to the type collection. The plant is 
hardly separable from H. californica except that it has narrower bracts. If 
this is H. tenuiloba, and it answers to the brief original description about as 
well as the plants I have listed under that name, the others should have a new 
name, for they are certainly not the same as these plants of Mr. Wright’s. 
4. Hesperonia laevis (Benth.) Standley. 
Ozrybaphus laevis Benth. Bot. Voy. Sulph. 44. 1844. 
Mirabilis laevis Curran, Proc. Cal. Acad. Sci. II. 1: 235. 1889, 
_ In the herbarium of the University of California there is a specimen of what 
I take to be this species, collected at the type locality, Magdalena Bay, Lower 
California, by Doctor Lung, U. 8. N., no. 28. The plant has no fruit, but other- 
wise the characters can be determined fairly well, although the specimen is not 
of the best. 
Branches dichotomous, straight, perfectly glabrous, rather slender, with long 
internodes; leaf blades ovate, somewhat sinuate-margined, rather thin, acutish: 
leaves 30 mm. long and 20 mm. wide or less, the uppermost considerably smaller ; 
petioles almost as long as the blades in the lowest leaves, the uppermost blades 
almost sessile; leaves glabrous; flowers single in the axils of the leaves or 
apparently clustered at times at the ends of the branches; bracts mostly 10 mm. 
long, the free portion as long as the tube or longer, the segments lanceolate, 
acute, glabrous, or with a very few minute, appressed hairs; flowers about 16 
mm. long. 
‘The type was described as glabrous, and it seems quite probable that this is 
the same plant as the one collected at the same place during the voyage of the 
Sulphur. It is the only quite glabrous plant that I have seen in the genus. 
5. Hesperonia oligantha Standley, sp. nov. 
Stems branching from a woody base, the lower branches suffrutescent; stems 
slender, very closely and sparingly puberulent or almost glabrous; internodes 
25 to 50 mm. long; leaf blades ovate, subcordate at the base or rounded or 
rarely somewhat narrowed, thin, sparingly puberulent, with prominent lateral 
veins, the lower leaves obtuse, the upper ones acute; petioles one-third as long 
