sparse strigosus, 21-23 mm. longus, apice 8-9 mm. dia- 
metro, calycorum dentibus triangularibus, 8 mm. longis, 
strigosis; corolla immatura, apice strigosa; gynoecium 
glabrum. 
Inga involucrata is not closely related to any other 
known species. It is abundantly distinct by virtue of its 
persistent, foliaceous stipules and bracts; the latter form 
a conspicuous involucre (hence the specific epithet) at the 
apex of the peduncle, subtending the subsessile flowers. 
Another very striking feature of the new species is the 
very large calyx; the only species which shares this char- 
acter is Inga inflata Ducke, an Amazonian species, but 
this probably does not indicate very close relationship, for 
in all other respects the two species are quite dissimilar. 
CoLombia: Departamento de Antioquia, Golfo de Uraba, Municipio 
de Mutata, Villa Arteaga. Altitude about 150 ft. February 16-20, 
1953. Richard Evans Schultes & Isidoro Cabrera 18651 (Typr in U.S. 
Nat. Herb. 2172228). 
Inga longifoliola Cowan sp. nov. 
Arbuscula vel arbor ad 3 m. alta, ramulis minute strigu- 
losis, albo-lenticellatis; stipulae caducae, ca. 2.5 mm. 
longae, 0.7 mm. latae, acutae, anguste ellipticae; folia 
parce minuto-strigulosa, petiolis teretibus, 20-22 mm. 
longis, rhachibus 24-33 mm. longis, teretibus ad margina- 
tis, glandulis sessilibus et ca. 2 mm. diametro; foliola 
2-jugata, raro unijugata, petiolulis 2-2.5 mm. longis, 
laminis 13-17.5 cm. longis, 8-5 cm. latis, anguste ellip- 
ticis ad lanceolato-ellipticis, base acutis, apice longo- 
acuminatis, faciebus ambobus parce strigulosis, supra 
metallicis et nitidis, costa salienti, venis primariis ca. 15- 
jugatis, supra planis, infra salientibus; inflorescentiae 
axillares, pedunculo (80—) 45-55 (-62) mm. longo, mi- 
nute striguloso, axe ca. 12-15 mm. longo, minute strig- 
uloso, bracteis caducis, lanceolatis, acutis, 2 mm. longis 
et 1 mm. latis, externe minute strigulosis, intus glabris, 
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