70 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
cuneate at the base, obtusely acuminate at the apex, 5.5 to 11 cm. long, 3 to 5 cm. 
broad; nervation impressed above, slightly prominent beneath. Stipules not seen. 
Racemes axillary or terminal, sometimes geminate, the rachis pubescent, 3 to 11 cm. 
long. Peduncles and pedicels pubescent, the former either biflorous, then hardly 
over 1 mm. long, or uniflorous and about 4 mm. long, the 
pedicels also about 4 mm. long bracts and bractlets very 
small, ovate or suborbicular, pubescent, the latter opposite 
and inserted at the joint of the pedicel and calyx stipe. 
Calyx broadly salverform, short-stipitate, gray-pubescent, 
about 5 mm. long, 5-toothed, the 2 anterior teeth coales- 
cent and obsolete. Petals lavender-colored atthe apex, 
gradually shading to white toward the claw, minutely 
yellow-spotted; standard suborbicular, truncate at the 
base, emarginate at the apex, the claw slightly oblique, 3 
mm. long, the blade about 10 mm. long and 12.5 mm, 
broad, minutely pubescent without; wings oblong, oblique, 
prominently auriculate, obtuse, slightly pubescent with- 
out, the claw 5.5 mm. long, the blade about 8 mm. long 
Fig. 18.—Lonchocarpus darien- and 4 mm. broad; carinal petals obovate, obtuse, densely 
ensis, a, Standard; b, wings; pubescent without along the keel, the claw 5 mm. long, 
: ati peralss o> Stamens the blade about 17.5 mm. long and 4 mm. broad. Vexil- 
Pittier 5515. lar stamen free at the base. Ovary linear, densely 
whitish-pubescent, about 10.5 mm. long, 5-ovulate; style 
arcuate, subglabrous; stigma capitellate. 
Type in the U. S. National Herbarium, no. 715766, collected near Garachiné, 
southern Darién, Panama, in light woods, in flower, January 28, 1912, by H. Pittier 
(no. 5515). 
In the absence of the legume I place this species tentatively near Lonchocarpus 
megalanthus and L. mexicanus, with both of which it seems to have close affinities. 
23. Lonchocarpus megalanthus Pittier, sp. nov. Figure 19. 
A deciduous tree about 10 meters high, low-branched, the branchlets brownish, 
glabrous, lenticellate. 
Leaves 5 or 7-foliolate, glabrous, the rachis terete, 
5 to9 cm. long. Leaflets coriaceous, light green, 
the petiolules narrowly canaliculate, 1 cm. long, 
the blades ovate or ovate-oblong, rounded and 
subattenuate at the base, obtuse or very shortly 
obtuse-acuminate at the apex, reticulate, 3.5 to 9 
cm. long, 2.5 to 4 cm. broad, the costa and veins 
impressed above, slightly prominent beneath. 
Stipules not seen. 
Racemes growing from nodes on leafless branch- 
lets, densely flowered, glabrous, the rachis stout, 
2.5 to 6 cm. long. Peduncles and pedicels mi- 
nutely pubescent, the former very short (1 mm. 
long or less), usually biflorous, the latter slender, 
3 to 4 mm. long; bracts and bractlets very small 
and deciduous, ovate-orbicular, pubescent, the Fic. 19.—Lonchocarpus megalanthus. 
latter opposite and close to the base of the calyx.  % Standard; , wings; ¢, carinal petals; 
. d, calyx and stamens; e, pistil. Natu- 
Calyx large, cupulate, truncate or slightly 5-den- ral size. From Palmer 1997. 
tate, minutely pubescent without, about 6 mm. 
long. Petals unusually large, pubescent without; standard suborbicular, truncate 
and callousplicate at the base, emarginate at the apex, lilac within with a large greenish 
