108 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
abruptly acute, broadly rounded or truncate at the base, prominently veined, dull 
green, densely viscid-pubescent on both surfaces; racemes axillary, 3 to 11 cm. long, 
with 3 to 7 flowers near the apex, the rachis pubescent like the stems; bracts shorter 
than the calyx, inconspicuous; pedicels 2 to 4 mm. long; calyx about 5 mm. long, the 
lobes about twice as long as the campanulate tube, subequal, the lowest slightly 
longer than the others, all linear or linear-lanceolate, attenuate, densely viscid-hirsute 
with tawny hairs; corolla 8 to 9 mm. long, reddish brown, the banner broadly oblong, 
viscid-pubescent outside, the keel and wings of about the same length; legumes about 
16 mm. long, elliptic-oblong, acutish, sessile, viscid-hirsute with yellow hairs and 
glandular, short-beaked; seeds 2, 3.5 mm. long, flattened, dark reddish brown. 
Type in the U. S. National Herbarium, no. 677931, collected in the vicinity of 
Penonomé, Panama, in February or March, 1908, by R. S. Williams (no. 119). The 
same collector’s no. 581, from the vicinity of Penonomé, also belongs here. 
The plant is related to D. phaseoloides, but differs widely in its lesser stature, small 
leaflets, dense, viscid pubescence, few-flowered racemes, and pubescent legumes which 
are not constricted between the seeds. 
Dolicholus calycosus (Hemsl.) Standley. 
Rhynchosia calycosa Hemsl. Diag. Pl. Mex. 48. 1880. 
Erythrina darienensis Standley, sp. nov. 
Petioles somewhat fleshy, 10 to 13 cm. long, sparingly and minutly puberulent, 
bearing a large (4 mm. high) cuplike gland at the base of each lateral leaflet; leaflets 
thin, bright green, glabrous, or sparingly puberulent upon the veins beneath, the 
terminal ones 15 to 16 cm. long and of the same breadth, rhombic-ovate, obtuse but 
abruptly short-pointed, broadly rounded at the base; lateral leaflets similar in out- 
line to the terminal one but inequilateral and smaller, 13 to 14 cm. long; petiolules 
stout, 1 cm. long; inflorescence of stout racemes 8 to 19 cm. long aggregated at the 
ends of the branches, their rachises densely and very finely tomentulose with tawny 
hairs; pedicels stout, divergent, 5 mm. long or less; calyx campanulate, 7 mm. long, 
5 to 6 mm. broad, contracted into a short stipelike base, truncate at the top and 
entire except for a very short triangular lower tooth, minutely tomentulose-puberu- 
lent; banner recurved, about 45 mm. long and 15 mm. wide, elliptic, obtuse, sessile, 
glabrous; keel 35 mm. long, falcate, obtuse or acutish, the petals 10 mm. wide near 
the base, united for nearly their whole length; wings rhombic-oval, obtuse, 10 mm. 
long; stamens 10, the filaments of 9 of them united nearly to the top, that of the 
tenth free nearly to the base; ovary long-stipitate, tomentulose. 
Type in the U. 8. National Herbarium, no. 715845, collected near Boca de Paua- 
randé, on the Sambi River, southern Darién, Panama, at an altitude of about 20 
meters, February, 1912, by H. Pittier (no. 5578). 
Distinguished from the South American species with united keel petals by the 
narrow standard. The glands of the petioles seem to be peculiar to this plant. 
Erythrina darienensis is a characteristic tree of the flats along the Sambt River, 
attaining a height of 30 meters. The straight trunk is 1.2 meters in diameter, with 
grayish bark, supported at the base by ‘‘saponemas” or buttresses. The wood is soft 
and white. The young branches are armed with short spines. 
Meibomia maxonii Standley, sp. nov. 
Section Chalarium. Much branched shrub about 2 meters high; stems stout, brown, 
terete, the younger ones densely hirsute with white hairs, the older ones becoming 
glabrate; stipules distinct, persistent, broadly lanceolate to broadly ovate, 5 to 8 mm. 
long, abruptly long-acuminate, finely parallel-nerved, brown, thin, glabrous within, 
densely and coarsely sericeous on the outer surface; petioles 10 to 22 mm. long, hir- 
sute; leaflets ovate to oblong or oval, 20 to 38 mm. long, 11 to 23 mm. wide, obtuse to 
acutish, rounded at the base, thick, dull green, conspicuously reticulate-veined, spar- 
ingly pubescent on the upper surface with short, closely appressed hairs, or glabrate, 
