118 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
pediceled; calyx obpyramidal, 6 mm. long, the lobes triangular, acute, about half as 
long as the tube; corolla yellow, about equaling the calyx; fruit not seen. 
Type in the U. 8. National Herbarium, no. 533011, collected in the region of Santa 
Marta, Colombia, at an altitude of 150 meters, by Herbert H. Smith (no. 493). 
NEW OR NOTABLE EBENACEAE FROM MEXICO. 
There are here included descriptions of 3 new species of Diospyros 
and 2 of Maba, chiefly from the western coast of Mexico. Several 
species of these two genera have been described from Mexico, but 
most of them are poorly represented in American herbaria. The 
Mexican species of Diospyros are particularly interesting. Probably 
most of them are of local distribution. 
The common persimmon of the eastern United States, Diospyros 
virginiana, apparently deserves greater attention than has heretofore 
been given it. Early American botanists, notably Pursh and Rafin- 
esque, believed that two or more species of Diospyros occurred in 
the eastern United States. Casual inspection of the material in the 
National Herbarium inclines the writer to the belief that at least two 
distinct forms are included under virginiana, and probably several 
species can be distinguished when there has been accumulated a 
large amount of herbarium material properly annotated. At present 
the material available is altogether insufficient for a critical study 
of the supposed aggregate. 
Maba latifolia Standley, sp. nov. 
Section Macreightia. Shrub or small tree; branches slender, dark brown or grayish, 
the branchlets densely hirtellous with short fulvous hairs, glabrate in age; petioles 
stout, 1.5 to 3 mm. Jong, densely hirtellous; leaf blades broadly oblong, oval, or oval- 
obovate, 3.2 to 6.5 cm. long, 1.7 to3 cm. wide, rounded at the apex or broadly obtuse, 
rounded or obtuse at the base, subcoriaceous, grayish green on the upper surface and 
sparsely puberulent, or densely short-villous when young, beneath copiously short- 
villous, the margins slightly revolute, the veins prominent beneath, coarsely reticu- 
late; flowers not known; fruit solitary, axillary, subsessile on a very short thick 
pedicel; fruiting calyx 3-lobed nearly to the base, the lobes orbicular-ovate, obtuse 
or rounded at the apex, coarsely veined, densely puberulent throughout; fruit sub- 
globose, about 2.5 cm. in diameter, yellowish outside and densely pubescent about 
the apex, elsewhere glabrate, 6-celled, the pulp reddish; seeds oval or oval-oblong in 
outline, 11 mm. long, 6 to 7 mm. in diameter, about 5 mm. thick, acute or obtuse on 
the inner edge, dark reddish brown, finely and distinctly rugulose. 
Type in the U. 8. National Herbarium, no. 637592, collected in dry coastal thickets 
near Guadalupe, Sinaloa, Mexico, April 18, 1910, by J. N. Rose, Paul C. Standley, 
and P,G,. Russell (no. 14709). Specimens in fruit, just coming into leaf, were collected 
ona dry hillside at Mazatlan, Sinaloa, April 7, 1910 (Rose, Standley & Russell 14147). 
Three species of Maba, all of the section Macreightia, have been described from 
Mexico: M. intricata (A. Gray) Hiern, from Cape San Lucas, Lower California; 4M. 
albens (Presl) A. DC., from Acapulco; and M, acapulcensis (H. B. K.) Hiern, also from 
Acapulco. The habitats of two other species, M. pavonti (A. DC.) Hiern and MM, 
salicifolia (H. B. K.) Hiern, are doubtful and may be Mexican. Judging from descrip- 
tions, the present species is clearly distinct from all of these, differing from each in 
definite characters of the fruit, leaf outline, or pubescence. Unfortunately only two 
