216 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ones 5 mm, long, sparsely puberulent, the inner ones 8 to 10 mm. long, glabrous; 
petals very unequal, 2 of them about 2.5 cm. long and 2 em. wide, the others 
lanceolate or ovate, 1 to 1.5 cm. long and 2 to 4 mm, wide, slender-clawed, all 
more or less puberulent; stamens 10, 3 of them abortive, the 3 largest ones 
with curved anthers nearly 1 em. long terminating in a slender tube 5 to 6 mm. 
long, the other 4 with erostrate anthers 4 mm. long; ovary densely appressed- 
pilose with fulvous hairs; fruit (immature) 16 to 18 em. long, 5 to 6 mm. 
wide, glabrate, long-stipitate, rounded and rostrate at the apex, the valves 
flat, thin. 
Type in the U. 8S. National Herbarium, no. 471718, collected along the Rio 
Tiliri, Costa Rica, November 23, 1892, by A. Tonduz (no. 7213). 
The following additional specimens belong here: 
Costa Rica: Rio Tiliri, December, 1890, Tonduz 3197. Alajuelita, alt. 
1,100 meters, December, 1889, Tonduz 1484. 
Cuiapas: Between Tuxtla and Cristébal, alt. 690 to 1,650 meters, 1895, 
Nelson 8127. 
This species belongs to Bentham’s section Chamaesenna, series Rostratae. 
It seems to be related to Cassia robiniaefolia Benth., but in that the leaflets 
are more numerous and obtuse or acutish, with inconspicuous venation. One 
of the Costa Rican collections was determined by Micheli as C. laevigata 
Willd., a species not closely related to the present one. 
Indigofera sphinctosperma Standl., sp. nov. 
Shrub, the branches very slender, densely white-strigose ; stipules very short, 
subulate; leaves petiolate, the rachis very slender, the leaflets usually 11 to 
15, oval or rounded-oval, the largest 13 mm. long and 8 mm. wide, rounded 
or very obtuse at the base, broadly rounded at the apex and mucronulate, 
dens¢ly or sparsely gray-strigose on both surfaces, conspicuously petiolulate; 
racemes slender, 5 to 15 em. long, the flowers short-pedicellate, at first dense 
but distant in anthesis, the bracts filiform-subulate; calyx densely strigose, the 
lobes triangular, equaling or slightly longer than the tube; standard petal 
about 3.5 mm. long, densely strigose; fruit 8 to 4 mm. long, tetragonous, white- 
strigillose, sessile, subtruncate at each end, slightly constricted; seed 1.2 to 
2.5 mm. long, cylindric, subtruncate at each end, olivaceous, usually with 2 
shallow transverse constrictions. 
Type in the U. S. National Herbarium, no. 840446, collected in the Barranca 
de Santa Marfa, Zacuapan, Veracruz, Mexico, November, 1906, by C. A. Purpus 
(no. 2332). 
The following collections also belong here: 
VERACRUZ: Banos de Carrizal, Purpus 6077. Barranen de Santa Maria, 
Purpus 3641. 
Several other species of Indigofera found in Mexico have short, one or few- 
seeded pods, but in all of them the seeds are shorter and of different shape, 
and the fruit is either globose or ovoid, with an acute or rounded apex. 
Phyllocarpus septentrionalis Donn. Smith, Bot. Gaz. 55: 433. 1913. 
This recently described plant is a most interesting one, because of the fact 
that the only other known representative of the genus is a native of Brazil. 
The type of P. septentrionalis was collected near Gualfin, Guatemala. Recently 
there have been received at the National Herbarium complete specimens col- 
lected one mile above El Progreso, Guatemala, at an altitude of 510 meters, 
by F. W. Popenoe (no. 759). Mr. Popenoe’s notes regarding this collection 
are as follows: “Large tree, about 15 meters high, in sandy soil along the 
banks of streams. Flowers light scarlet. The tree blooms when nearly devoid 
of leaves, and is a mass of flowers.” The vernacular name is given as “ flor 
de mico,” 
