78 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
it can not be considered a form of the latter species. Neither can it be identified 
with L. domingensis DC., which has the fruits of L. sericeus, and it is very doubtful 
whether it corresponds to L. macrophyllus H. B. K., as surmised by Bentham. 
33. Lonchocarpus constrictus Pittier, sp. nov. PuiatE 6, A. Fiaure 28. 
An erect shrub or small tree 2 to 5 meters high, deciduous, the bark grayish or 
reddish, lenticellate on the branchlets; young shoots glabrous. 
Leaves 5 to 11-foliolate, mostly 7 to 9-foliolate, the rachis canaliculate,slender,glabrous 
or glabrescent, 2 to 10 cm. long. Leaflets coriaceous, the petiolules 2.5 to 5 mm. long, 
canaliculate, at first densely hairy, later sparsely hairy and darkish, the blades ovate 
or obovate, rounded or cuneate at the base, rounded-obtuse or 
emarginate at the apex, 1.5 to 7 cm. long, 1.5 to 4 cm. broad, 
glabrous above, beneath at first softly hairy and later glabrous, 
the costa and veins prominent. Stipules triangular-acute, 
about 2 mm. long, densely canescent, deciduous. 
Racemes appearing before the leaves, solitary on the nodes 
of young branchlets, the rachis cano-pubescent, 4 to 6 cm. long, 
provided at the base with an oblong, caducous, canescent- 
tomentose bract about 3 mm. long; peduncles and pedicels 
cano-pubescent, the former very short (1 mm. or less), solitary, 
mostly biflorous, the latter about 2 mm. long; bractlets subu- 
Fig. 28.—Lonchocarpus late, hairy, about 1 mm. long, the upper pair a little below the 
constrictus. a, Standard; Calyx, rather conspicuous. Calyx cupulate, subturbinate at 
b, wings; c, carinal pet- the base, sinuate-denticulate on the margin, fulvous-pubescent 
als;d,calyxandstamens; without, 3 to 3.5mm. long. Petals reddish purple; standard 
e, pistil. Natural size. . . : 
From Palmer 1379, orbicular, concave, slightly emarginate at the apex, densely 
silvery-pubescent without, with a green spot at the base, the 
claw arcuate and obliquely inserted, 1 to 1.5 mm. long, the blade about 9.5 mm. long 
and broad, with the basal lobes inconspicuous, callous, each bearing on the inside a 
short calcarate appendage, the margins involute; wings adhering to the carina, oblique, 
oblong, rounded-auriculate, rounded at the apex, sparsely pilosulous without at the 
apex, irregularly spotted, the claw about 3 mm. long, the blade 8 to 8.5 mm. long, about 
2.5mm. broad; carinal petals falcate, convex but not always plicate, scarcely auricu- 
late, rounded-obtuse, densely pubescent along the upper half of the carinal margin, 
irregularly spotted, the claw about 4 mm. long, the blade 6.5 mm. long, 2.6 mm. broad. 
Staminal tube glabrous, the vexillar stamen free at the base. Ovary sessile, linear, 
densely cano-pubescent, about 7.5 mm. long, 6-ovulate; style strongly arcuate, pubes- 
cent at the base; stigma capitellate, inconspicuous. 
Legume long and slender stipitate, oblique, arcuate, acute at the apex, glabrous, 
1.5 cm. broad, either l-seeded and about 5.5 cm. long, or 2 or 3-seeded and up 
to 10.5 cm. long, constricted between the seeds, the carinal suture broadened at the 
seeds, flat, marginate on both sides, 6 to 7 mm. broad. Seeds obovate, hardly 
incurved on the hilum side, 12 mm. long, 7 mm. broad, about 4.5 mm. thick, reddish 
brown, the hilum deep, white-bordered. 
Type in the U.S. National Herbarium, no. 208513, collected at Manzanillo, State of 
Colima, Mexico, flowers and young leaves, March, 1891 by Edward Palmer (no. 
1379). The description of the adult leaves and fruits is from National Herbarium 
no. 266224, collected at Acapulco, State of Guerrero, Mexico, along the sea beach, 
between October, 1894, and March, 1895, Palmer 73. 
In the shape of the leaflets and fruits this species departs from all the other members 
of the subgenus Neuroscapha. The standard is curiously plicate and appendiculate 
at the base, and the spotted wings and carina remind one of the species of the section 
Punctati, but the leaves are not pellucid-punctate. The bractlets also constitute a 
good distinctive character. 
EXPLANATION OF PLATE 6,—Fruits of 2 species of Lonchocarpus. Fig. A, L. constrictus, from Palmer 
73, U. 8. National Herbarium no. 266224; fig. B, L. sericeus, from Palmer 598. Natural size. 
