206 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
mon the presence on the calyx and corolla of minute purple hairs 
mixed with the general pubescence, a character which evidently 
denotes a very close relationship, 
Two more species, represented by Cook & Griggs 631, from 
Guatemala, and Wéliams 673, from Panama, are probably new, 
and belong to this series, but the specimens at hand are too imperfect 
to admit of description. 
Inga pittieri Micheli, Bull. Herb. Boiss. 2: 446. pl. 13. 1894. 
A small tree, 8 meters high, the trunk 10 em. in diameter (Williams) ; 
branchlets terete or angulate, the grayish bark lenticellose, the younger parts 
densely fulvous-pubescent. 
Rachis of the leaves rufous, fulvous, or greenish-pubescent, partly wingless, 
marginate, or narrowly winged, 6 to 17 cm. long, the petiolar part terete or 
subalate, 2.5 to 5.5 em. long, the wings narrow but gradually broadening from 
the basal to the terminal leaflets; stipules ovate to oblong or lanceolate, obtuse, 
striate, minutely pubescent without, subpersistent, 8 to 16 mm. long, 5 to 9 mm. 
broad; leaflets 3-jugate, seldom 1 or 2-jugate, oblique, short-petiolulate, cori- 
aceous; glands small, sessile or substipitate, pertuse; petiolules 2 to 4 mm. 
long, thick, densely fulvous-pubescent; leaflet blades ovate to ovate-elliptic, 
rounded or subcuneate at the base, acute or abruptly acuminate and often 
mucronate at the apex, light green and at first sparsely scabrous-pubescent 
above, glabrescent later, the costa and veins densely fulvous-pubescent, beneath 
paler, reticulate, and softly pubescent, the prominent costa and veins densely 
fulvous-pubescent, the blades of the basal pair 6 to 12 em. long, 2.5 to 5 em. 
broad, those of the terminal pair 13 to 23 cm. long, 6 to 11 em. broad. 
Inflorescences single, axillary or subterminal, the peduncles 1 to 4 cm. long, 
densely fulvous-pubescent; flower heads ovoid or elongate, dense, the rachis 
2.5 to 3.5 cm. long, the bracts at the base of the heads often large, ovate- 
acuminate, 5 to 7 mm. long, caducous; floral bractlets linear-lanceolate or 
linear, pubescent without, 7 to 12 mm, long, subpersistent; flowers sessile, the 
calyx and corolla sparsely dotted with minute reddish hairs; calyx tubular, 
8 to 13 (10.5) mm. long, more or less grayish-pubescent, striate, the sinuses 
between the linear, subulate teeth rounded, 3 to 4 mm. deep; corolla pinkish 
white, tubular, broadening toward the apex, sparsely appressed-villous, 19.5 
to 24 (21.8) mm. long, the lobes densely villous, narrow, rounded or acute, 
1 to 4 mm. long; staminal tube about equaling the corolla, the pinkish stamens 
about 5.5 to 6 cm. long; pistil 6 cm. long or over; ovary glabrous, sessile, often 
constricted at the base, 4-sulcate, about 3 mm. long; stigma peltate, concave. 
Legume sessile, glabrous, 9 to 18 cm. long, the valves concave, 1.5 to 2.5 em. 
broad, these and the margins more or less regularly 6-sulcate, 1.3 to 1.8 cm. 
broad, coming equally together in a cuspidate spex; seeds about 20, ovate- 
oblong. 
PANAMA: Forests around San Felix, eastern Chiriquf, flowers, December 
30, 1911, Pittier 5452, Bismarck, above Penonomé, Province of Coclé, 
alt. 700 to 1,000 meters, fruits, March 5 to 19, 1908, Williams 489. 
Costa Rica: Banks of Rfo Ceibo, near Buenos Aires, Diquis Valley, alt. 
about 300 meters, flowers and fruits, February, 1892, Tonduz (Inst. 
Fis. Geogr. Costa Rica, no. 4977, type.) Around Santo Domingo de 
Osa, in forests, flowers and fruits, March, 1896, Tonduz (Inst. Fis. 
Geogr. Costa Rica, no. 10030). Coffee plantations near Juan Vifias, Re- 
ventaz6n Valley, alt. 1,000 meters, fruits, April 26, 1903, Cook 
Doyle 389. 
