Part? 2, 1917] AMARANTHACEAE 159 
third as long as the sepals, ovate-orbicular, stramineous, sparsely Short-villous; sepals elliptic. 
oblong, obtuse or acutish, 2.5 mm. long, 3-nerved, brownish-fuscous, densely pilose at the 
base, the hairs sordid-whitish, stiff, conspicuously articulate, twice as long as the sepals or 
longer; filaments shorter than the sepals, the staminodia short, entire; style short, the stigmas 
very short, stout; utricle oval; seed 1 mm. long. 
TypE Locality: San Pedro Sula, Honduras. 
DistRiBuTion: Honduras to Panama. 
10. Iresine costaricensis Standley, Contr. U. S. Nat. Herb. 18: 94, 
1916. 
Scandent shrub, much branched, the branches stout, terete, smooth, the younger ones 
and those of the inflorescence densely pubescent with short stout appressed fulvous hairs; 
petioles stout, 7-17 mm. long; leaf-blades oval to oblong-elliptic, 11-18 cm. long, 4-7 cm. wide, 
abruptly acuminate or long-attenuate at the apex, obtuse at the base, thick, sparsely short- 
villous on the upper surface and deep-green, appressed-pilose beneath with slender stiff hairs; 
flowers perfect, in a loose, much branched, naked, terminal panicle sometimes 5 dm. long, the 
branches slender, spreading, opposite or verticillate, the spikelets 3 mm. thick or less, sessile, 
few-flowered, the rachis canescent ; bracts and bractlets less than half as long as the sepals, 
suborbicular, fuscous-stramineous, sparsely short-villous; sepals oval-oblong, 1.5 mm. long, 
obtuse, 3-nerved, brownish-fuscous, densely pilose, the hairs stiff, grayish, scarcely exceeding 
the sepals; filaments shorter than the sepals, the staminodia short, entire; style short, the 
stigmas short and stout. 
TYPE LOCALITY: Las Vueltas, Tucurrique, Costa Rica. 
DisrRipvrion: In thickets, vicinity of the type locality. 
11. Iresine domingensis Urban, Symb. Ant. 5: 337. 1907. 
Scandent shrub, the branches grayish, glabrate, the branchlets densely pubescent; 
petioles 5~8 mm. long; leaf-blades ovate-oval or oval, 3.5~7 cm. long, 2-3 cm. wide, sub- 
cuneately narrowed at the base, acutely acuminate at the apex, chartaceous, glabrate 
above, appressed-pubescent beneath; flowers perfect, in a loose, much branched panicle 20 
em. long or shorter, the branches spreading, the spikelets 4 mm. thick, 2.5-4 mm. long, 
usually pedunculate, the rachis densely pubescent; bracts and bractlets deltoid-reniform, 
about half as long as the sepals, villosulous; sepals ovate-lanceolate, acutish, 1.6~1.7 mm. 
long, obsctirely 3-nerved, densely pilose, the hairs whitish, about as long as the sepals; fila- 
ments 0.8 mm. long, the staminodia subquadrate, truncate, obscurely crenulate; style very 
short, the stigmas short and stout. 
TYPE Locaniry: Haiti. 
DIstRiBution: Haiti. 
12. Iresine argentata (Mart.) D. Dietr. Syn. Pl. 1: 870. 1839. 
Trommsdor fia argentata Mart. Nov. Gen. & Sp. 2: 41. 1826. 
Achyranthes nodosa Bertero; Mart. Nov. Gen. & Sp. 2: 41, assynonym. 1826. 
Alternanthera argentata Mog. in DC. Prodr. 132: 352. 1849. 
Erect or scandent shrub, much branched, the branches stout or slender, terete, smooth, 
glabrate, the young branches and those of the inflorescence densely pubescent with short, 
stout, soft, appressed or ascending hairs; petioles stout, 2-8 mm. long; leaf-blades oblong-oval 
to broadly oval or rounded-ovate, 6-12 cm. long, 3.5-6 cm. wide, acute or usually abruptly 
acute at the apex, rounded at the base, subcoriaceous, glabrous, or sparsely canescent when 
young; flowers perfect, in pyramidal or elongate, terminal or axillary panicles, the branches 
spreading, opposite or verticillate; spikelets short, sessile or pedunculate, their rachises canes- 
cent; bracts and bractlets one third as long as the flowers, orbicular-ovate, obtuse or acutish, 
densely short-villous; sepals elliptic-oblong, acutish, 2 mm. long, subfuscous, faintly 3-nerved, 
densely pilose, the hairs stiff, brownish-white, scarcely exceeding the sepals; filaments filiform, 
the staminodia short, obtuse, entire; style very short, the stigmas short and stout. 
TPH LOCALITY: Porto Rico. : : ; 
DistRiIBUTION: In thickets, Porto Rico; apparently also in Colombia and Venezuela. 
ILLUSTRATION: Mart. Nov. Gen. & Sp. #l. 145, f. 3. 
