PITTIER—REVISION OF THE GENUS INGA. 183 
Series 2. GYMNOPODAE. 
NEW SPECIES. 
Inga aestuariorum Pittier, sp. nov. PLATE 89. 
A small, low, spreading tree, branching from near the ground; branchlets 
more or less ferruginous-pubescent, covered with white, dotlike lenticels. 
Rachis of the leaves slender, terete or subangulate, densely ferruginous-hairy, 
9 to 15 cm. long, the petiolar part 1.5 to 2.5 cm. long; leaflets 5 or 6-jugate, 
short-petiolulate, coriaceous; glands subsessile, prominent, cuplike, blackish; 
petiolules 1 mm. long or shorter; leaflet blades ovate to ovate-elliptic, broadly 
rounded and subemarginate at the base, obtuse or subacute and mucronate at 
the apex, pilosulous and more or less lustrous above, reticulate and sparsely 
pubescent beneath, the costa densely pubescent and prominent on both faces, 
the veins also pubescent and prominent beneath; leaflets of the basal pair 
8 cm. long, 2 cm. broad, those of the terminal pair 6 to 12 cm. long, 2.5 to 4.5 
cm. broad, 
Floral spikes single or geminate in the axils of the upper leaves; peduncles 
and rachises densely ferruginous-pubescent, the former 8 to 5 em. long; flower 
heads loose, elongate, 3 to 4 cm. long; flowers sessile; bractlets very small, 
ovate, acute, densely pubescent, deciduous; calyx tubular, striate, pubescent, 
7 mm. long, the teeth very short; corolla tubular, very slightly broadened at 
the apex, 18.5 mm. long, white, silky-villous, the lobes narrow, about 2.5 mm. 
long; stamens pink, the tube hardly exserted; pistil glabrous, the style a 
little longer than the stamens, 
Legume sessile, rounded at the base, apiculate, 14 to 20 cm. long, the valves 
fiat, about 1.7 cm. broad, glabrescent, the margin 5 mm. broad, elevated around 
the valves, densely ferruginous-pubescent. Seeds about 10, immersed in a 
white, sweet pulp. 
Type in the John Donnell Smith Herbarium, collected in the tide belt of 
the Pacific coast at Boca Zacate, Diquis Delta, Costa Rica, flowers and fruits, 
April, 1892, by A. Tonduz (Inst. Fis. Geogr. Costa Rica, no. 6793). 
Also collected at Laguna de Sierpe, Costa Rica, Pittier. 
This species belongs to the group of f. multijuga, but differs from that spe- 
cies primarily in the number of the leaflet pairs, in the shape and pubescence 
of the leaflets, and in the size of the flowers. While the former is stated to be 
a tree 7 to 15 meters high, J. aestuariorum is low and bushy, growing preferably 
along the tide channels in close proximity to the sea. 
EXPLANATION OF PLATE 89.—Fruit of a specimen of the type collection of Inga 
aestuariorum in the Costa Rican National Herbarium. Natural size. 
Inga latipes Pittier, sp. nov. 
A tree; branchlets slender, angulate. 
Rachis of the leaves wingless, glabrous, canaliculate or submarginate, 3 to 5 
cm. long, the petiolar part about 1 cm. long; stipules not seen, caducous; 
glands large, sessile, subglobose or depressed; leaflets 3-jugate, scarcely 
oblique, coriaceous, the petiolules about 2 mm. long, sparsely pubescent or gla- 
brescent, the blades ovate-elliptic, rounded-cuneate at the base, obtuse, acute, 
or acuminate at the apex, 3.5 to 12 cm. long, 2 to 4.5 em. broad, glabrous, lus- 
trous above, with slightly prominent costa and veins, paler and obscurely reticu- 
late beneath, with very prominent costa and veins. 
Inflorescence not known. 
Legume subligneous, pedunculate, short-stipitate, 9 to 31 em. long, about 4 cm. 
broad, broadly rounded at base and apex, glabrous, blackish, transversely 
