188 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
the mature pods are 2.5 cm. broad, rounded at the base, and at most very shortly 
stipitate; and the seeds are separated by deep transverse furrows. 
Inga leptoloba Schlecht. Linnaea 12: 559, 1830. PLATES 98, 94. 
In this species the leaflets are 3-jugate, very seldom fewer, ovate-elliptic or 
oblong-elliptic, usually cuneate or subcuneate at the base, with a broader 
acumen than in JI. punctata; their texture also is firmer and the veins are 
nearer together; the mature pods are narrower, fuller, distinctly stipitate or at 
least cuneate, never broadly rounded, at the base. 
An illustration of the fruit of I. ruiziana Don, another species of the same 
series, is given in plate 95. 
EXPLANATION OF PLATES 93-95,—Pl. 93, from a field photograph of Inga leptoloda 
taken at Setzimaj, Guatemala, March 19, 1902, by Mr. G. N. Collins. Pl. 94, fruit of a 
specimen collected along the Rfo Torres at San Francisco de Guadalupe, near San José, 
Costa Rica, by Tonduz (Inst. Fis. Geogr. Costa Rica, no. 8010); specimen in the John 
Donnell Smith Herbarium, T). 95, two fruits of Inga ruiziana Don, in the U. S. National 
Herbarium, collected at Gamboa, Canal Zone, Panama, March 29, 1914, by H. Pittier 
(no, 6520). All natural size. 
Series 3. PILOSIUSCULAE. 
NEW SPECIES. 
Inga cobanensis Pittier, sp. nov. 
A tree, the young branchlets terete, densely ferruginous-pubescent. 
Rachis of the leaves winged, 3.5 to 7.5 em. long, ferruginous-pubescent, the 
petiolar part wingless, thicker at the base, 1.2 to 2 em. long, the wings obo- 
vate, up to 8 mm. broad; stipules not seen; glands small, sessile, deep-pitted, 
transversely compressed; leaflets 3-jugate, oblique, coriaceous, the petiolules 
ferruginous-hairy, up to 2 mm, long, the blades ovate, rounded at the base, 
acute or subacuminate, glabrous above except on the ferruginous-pubescent 
costa and veins, reticulate and rufous-tamentose beneath, with the costa and 
veins densely pubescent and prominent; blades of the basal pair of leaflets 
3 to 5.5 cm. long, 1.5 to 2.5 em. broad, those of the terminal pair 7 to 11 cm. 
long, 3.5 to 5.5 em. broad. 
Floral spikes 3 to 6-clustered in the axils of the upper leaves, the peduncles 
terete, densely ferruginous-pubescent, 1 to 3 cm, long, the flower heads elongate, 
many-flowered ; bractlets linear, acute, densely ferruginous-hairy, shorter than 
the calyx; flowers sessile; calyx densely rufous-pubescent, 4.3 to 6.3 5.3) mm, 
long, the teeth short, triangular, acute; corolla 11.6 to 13.2 (12.4) mm. long, 
densely fulvous or rufous-villosulous, the lobes ovate-lanceolate, acute, 1.5 to 
2 mm. long; staminal tube included, seldom slightly exserted, the filaments 
very long (about 3 cm, from base of the tube) ; ovary Sessile, glabrous, flat- 
tened ; style about 4.5 em. long. 
Legume not known. 
Type in the John Donnell Smith Herbarium, collected at Cobéin, Alta Vera- 
paz, Guatemala, at an altitude of about 1,450 meters, flowers, April, 1887, by 
H. von Tiirckheim (J. D. Smith, no. 1214). 
This species was distributed under the name Jnga edulis Mart., but differs 
in its 3-jugate leaflets, smaller flowers, etc. The shape of the ovary seems to 
indicate a flat pod. On account of this and taking into account the other 
characters, I place J. cobanensis in the present section and series. 
Inga hostmannii Pittier, sp. nov. 
Branchlets angulate, thick, 
Leaves entirely glabrous; rachis narrowly winged or marginate, 1.5 to 2.5 em. 
lung, the petiolur part 0.5 to 0.7 em. long; leaflets 2-jugate, coriaceous, stilf, 
