246 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
cuneate-attenuate at the base, acute or obtuse and emarginate at the apex, 7 to 
14 cm. long, 4.5 to 5.5 cm. broad, glabrous and reticulate above, minutely retic- 
ulate and densely brownish-scaly beneath. Panicles foliate, the spikes numer- 
ous, often 3 or 4-verticillate, 9 to 12 cm. long, the rachis subquadrangular, fer- 
ruginous-pubescent, scarcely scaly; calyx funnelform-campanulate, articulate 
upon the ovary, sparsely brownish-scaly with- 
out, slightly fulvous-villous on the limb within, 
about 12 mm. long, the lobes rounded-triangu- 
lar, acute, glabrous inside, minutely pilosulous 
on the margin, about 3 mm. long; petals sub- 
orbicular or broadly ovate, glabrous, more or 
less distinctly apiculate, 2.2 to 3 mm, long, 
Fig. 100.—Perianth of Combre- 2.2 to 2.5 mm. broad, equaling the calyx lobes; 
tum benthamianum spread out. stamens 8, the filaments about 2.2 em. long, 
pp, Petals. Scale 2. the anthers ovate; disc glabrous within, 
densely villous on the free, slightly sinuate margin; ovary fusiform, 4-mar- 
ginate, scaly-puberulous, stipitate, 4 to 5 mm. long; style exceeding the 
stamens. Follicles sparsely scaly on the wings, 2 cm. long, 1.8 cm. broad across 
the wings, the pedicel pilosulous, 3 mm. long; seed oblong, acute at both ends, 
smooth, about 7 mm, long, 4-winged, 2 of the wings broader. 
Type from Guatemala. 
Again collected in the vicinity of San Salvador, El Salvador, flowers and 
fruits, by Dr. C. Renson (nos. 36, 68). 
This differs from C. farinosum H. B. Kk. in its smaller flowers and sub- 
orbicular petals and in its indument. From the closely allied C. argenteum 
Bertol. it departs in having the leaves perfectly glabrous above, the panicles 
profusely branched, with a pubescent rachis, and the petals much larger and 
proportionally broader. 
FOUR NEW OR IMPERFECTLY KNOWN SPECIES OF COMBRETUM 
OF OTHER SECTIONS. 
Combretum alternifolium Pers, Syn. Pl. 1: 412. 1805. 
A vine, the branchlets terete, grayish, sparsely covered with minute white 
scales, the younger parts sparsely brownish-pubescent. Leaves subcoriaceous, 
alternate, the petioles terete, subcanaliculate, 0.5 to 1 cm. long, pubescent, the 
blades broadly ovate, rounded and sometimes oblique at the base, acute or sub- 
obtuse and mucronate at the apex, 5 to 7.5 cm. long, 3.5 to 5 em. broad, glabrous, 
dark green above, paler and reticulate beneath. Inflorescence broadly panicu- 
late, many-flowered, the rachis minutely brownish-pubescent and sparsely scaly, 
the branchlets opposite, subopposite, or alternate, those near the base subtended 
by caducous leaves, those toward the apex by caducous, subulate, densely brown 
ish-hairy bracts about 3 mm, long. Flowers opposite or alternate in the spike- 
lets, the bractlets subulate, glabrous, about half the length of the ovary; calyx 
campanulate, 5-lobed, about 2 mm. long, glabrous without, long-hairy inside at 
the insertion of the stamens; petals 5, oblong, narrower at the base, obtuse 
and often emarginate at the apex, 2.3 to 2.56 mm. long, 1 to 1.1 mm. broad, 
densely villous-tomentose on both sides, white; disc tubular, surrounding the 
style, crowned with long stiff hairs; ovary fusiform, stipitate, 5-angled, 
glabrous, about 2.5 mm. long; style subulate, 5.5 mm. long, surpassing the 
stamens. 
Type from Cartagena, Colombia. 
OTHER COLLECTIONS: 
Panama: Iguana Island, Seemann. Punta Patifio, southern Darién, along 
the beach (with Hippomane), flowers, April 27, 1914, Pittier 6607. 
