PITTIER—-REVISION OF THE GENUS INGA. 189 
petiolulate, more or less oblique; glands sessile, scutellate; petiolules thick, 
rugose, about 3 mm. long; leaflet blades ovate or obovate, cuneate-attenuate at 
the base, obtuse and emarginate at the apex, the costa and veins prominent on 
both faces, the blades of the basal pair 5.5 to 6.5 em. long, 3 to 4 em. broad, 
those of the terminal pair 8 to 14 cm, long, 4.5 to 6.5 em. broad. 
Inflorescence corymbose on axillary or terminal defoliate branchlets, the floral 
spikes single or geminate; peduncles glabrous or sparsely pubescent, 1.5 to 2.5 
cm. long; flower heads elongate, dense at first, but the flowers somewhat remote 
later; flowers sessile; bractlets ovate, conchoid, pubescent without, 8 to 5 mm. 
long, caducous; calyx pubescent, more or less distinctly striate, 7 to 8 mm, 
long, the teeth ovate, rounded at the apex; coroila 15 to 17 mm. Jong, silky- 
villous, the lobes narrow, obtuse, about 3 mm. long. 
Legume not known. 
Type in the Gray Herbarium, collected in Surinam by F. W. Hostmann; other 
data not given. 
The leaves and the arrangement of the inflorescence agree with the description 
of Inga splendens (Poir.) Willd., but the flowers are much smaller. This species 
corresponds to none of those enumerated by Bentham as collected by Hostmann 
in Surinam.’ 
Inga langlassei Pittier, sp. nov. 
A tree 8 to 10 meters high (Langlassé) ; young branchlets velvety ferruginous 
hairy. 
Rachis of the leaves winged, velvety-hairy (like the branchlets), 14 cm. long, 
the petiolar part almost nude, 2.5 cm. long, the wings sparsely villous; leaflets 
5-jugate, petiolulate; glands stipitate, blackish, the pit broad, dark at the bottom, 
with light brown rim; petiolules densely hairy, about 1 mm. long; leaflet blades 
ovate to obovate, rounded and subemarginate at the base, subacuminate, the tip 
acute and long-mucronate, sparsely villous above, slightly lustrous, the costa 
prominent and densely hairy and the veins delicate and impressed, brownish and 
sparsely villous beneath, with the nervation very prominent and the costa and 
veins hairy, the margin thickly hairy; blades of the lowest pair about 5 cm. 
long, 2 cm. broad, those of the penultimate pair larger than those of the ter- 
minal one, 13 to 15 cm. long, 5 cm. broad. 
Inflorescences axillary, ternate, the peduncles and rachis ferruginous-hairy, 
the former 2.5 to 3 em. long, the flower heads dense, elongate (about 3 cm. long) ; 
flowers sessile; bractlets linear, acute, a little shorter than or equal to the 
calyx; calyx broad, tubular, sparsely hairy, 3.2 to 3.7 (3.5) mm. long; corolla 
tubular-campanulate, white, sparsely silky-villous, 6.4 to 7.8 (6.8) mm. long; 
staminal tube included; pistil about 138 mm. long, glabrous, the ovary subsessile, 
containing about 20 biseriate ovules, the style ending in a broad stigma. 
Legume not known. 
Type in the U. S. National Herbarium, no. 530548, collected on the eastern 
watershed of the Western Cordillera, Cauca Valley, Colombia, flowers, November 
11, 1899, by E. Langlassé (no. 68). 
The tree is cultivated and is known among the natives by the name of “ navo.” 
The fruit is edible. 
This species is conspicuous for its flowers, which are the smallest in the 
group, the hairy fringe of its leaflets, and its comparatively large stigmas. It 
does not come very near any of the species I have seen. 
Inga mollifoliola Pittier, sp. nov. 
A tree; branchlets terete, glabrous, covered with brownish lenticels, the 
younger parts softly ferruginous-tomentose. 
1Trans, Linn. Soc. 80: 643. 1875. 
