234 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
OTHER SPECIMENS EXAMINED: 
MICcHOACAN or GUERRERO: San Cristébal, April 25, 1899, Langlassé 1011 (N). 
Oaxaca (?): Petlapa, October, 184—, Galeotti 7245 (N). 
Langlassé describes the flowers of his plant as greenish. A plant collected between 
Juchitango and Ometepec, Guerrero, at an altitude of 90 to 305 meters, February 20, 
1895, by E. W. Nelson (no. 2325), seems to differ from H. trichostemon as here described 
only in its glabrous filaments. Whether it represents a distinct species or a mere 
form of H. trichostemon must remain in doubt until more material of the group can 
be secured. 
It is possible that the species above described is Homalium senarium Moc. & 
Sessé, the status of which is not yet definitely made out, but in view of the very 
abbreviated description of that species, too short to permit its definite identification, 
it does not seen advisable to adopt the latter name. 
This species bears the name ‘‘palo de piedra’’ in Oaxaca. 
18. Homalium stenosepalum Blake, sp. nov. 
Large tree, 25 to 30 meters high; older branches grayish, dotted with raised lenti- 
cels, glabrous, the younger grayish fuscous or fuscous, dotted with whitish lenticels, 
glabrous or sometimes puberulous and short-villous; leaf blades 8 to 14 cm. long, 
3.2 to 6 cm. wide, elliptic or oval, short-pointed or acuminate (the tip obtuse or some- 
times acute), cuneate or rounded at base, thin-coriaceous or chartaceous-coriaceous, 
crenate with 13 to 21 pairs of blunt teeth, somewhat shining on both sides, above 
glabrous, beneath barbellate in the axils of the veins, otherwise glabrous or merely 
sparsely pubescent along the midrib, prominulous-reticulate, with 8 to 13 pairs of 
lateral veins; petioles glabrous or sparsely puberulous and pilose, 5 to 13 mm. long; 
peduncles axillary and subterminal, solitary or rarely in pairs, incurved-puberulous 
or subglabrous, 1 to 4.5 cm. long; panicles branched below, simply racemose above, 
the rachis griseous-puberulous with incurved hairs, 3.3 to 8.3 cm. long; lower branches 
of panicle mostly 1 to 2. cm. long; pedicels 1.5 to 5 mm. long; fruiting calyx turbinate, 
contracted into a pediform base, obscurely sulcate, griseous-puberulous; calyx seg- 
ments 5 or 6, narrowly lanceolate or subulate-lanceolate, narrowed to an obtusish 
tip, griseous-puberulous, 4 to 5 mm. long, 1 to 1.3 mm. wide; corolla 1.4 to 1.7 cm. wide 
in fruit, “white”; petals 5 or 6, ovate, narrowed from above the middle to an obtu- 
sish tip, griseous-puberulous, 5.5 to 6.5 mm. long, 2.5 to 3 mm. wide; stamens in fas- 
cicles of 2 or 3, the filaments glabrous, much shorter than the petals; styles 3, distinct 
to base, pubescent at base or below the middle; ovary short-conic, short-villous. 
Type in the U. 8. National Herbarium, no. 676,938, collected along the Chagres 
River, below Gatin, Canal Zone, Panama, near sea level, February 17, 1911, by 
H. Pittier (no. 2804), 
OTHER SPECIMENS EXAMINED: 
Panama: Around Frijoles, Canal Zone, altitude 8 to 30 meters, February 8, 
1911, Pittier 2693 (N). Without definite locality, Canal Zone, Christopherson 
139 (N). 
Very distinct in its large flowers and narrow sepals. The flowers are said to be 
ill-smelling. 
19. Homalium eurypetalum Blake, sp. nov. 
A tree, 10 meters high; older branchlets glabrous, grayish, the younger griscous- 
puberulous with incurved hairs, dull grayish brown; leaf blades normally 12.8 to 
14 cm. long, 4.7 to 5 cm. wide, elliptic or obovate-elliptic, short-pointed, with obtuse 
tip, cuneate at base, crenate with rounded teeth, chartaceous, shining, above densely 
incurved-puberulous along midrib, elsewhere sparsely so or glabrous, beneath 
sparsely incurved-pubescent along midrib and veins (these about 11 pairs), barbel- 
late in the axils of the veins; petioles densely incurved-puberulous and sparsely 
pilose, 8 to 10 mm. long; inflorescences axillary and subterminal, branched below, 
Jin 
