Alternanthera lanceolata (Benth.) Schinz

Achyranthes lehmannii (Hieron.) Standley, Jour. Wash
Acad. Sci. 5: 74. 1915.
AUernantkera Lehmannii Hieron. Bot. Jahrb. 20: Beibl. 49: 8. 1895.
Stems slender, sparsely branched, the branches ascending or procumbent, appressedpilose or glabrate; leaves numerous, mostly shorter than the internodes, the petioles '41 mm. long, the blades broadly ovate to elliptic-oblong, 2.5-8.5 cm. long, 1-3.5 cm. wide, abruptly acute to long-attenuate at the apex, abruptly acute to acuminate at the base and decurrent, thin, copiously appressed-pilose ; peduncles axillary, simple, 1.5—9 cm. long, very slender, appressed-pilose or glabrate; spikes short-cylindiic or globose, 6 mm. thick; bracts broadly ovate, half as long as the sepals, aristate-acuminate, stramineous or white, glabrous; sepals lance-oblong, 2.5-3 mm. long, acutish, sparsely short-pilose, 3-nerved, stramineous; staminodia ligulate, longer than the filaments, laciniate at the apex; style very short, the stigma entire.
Typ£ locality: Near Popayan, Colombia, at an altitude of 1700 to 1800 meters. Distribution: Costa Rica to Colombia.

Achyranthes panamensis Standley, Contr. U. S. Nat. Herb
18: 89. 1916.
Stems weak and probably clambering over shrubs, herbaceous, much branched,, the branches slender, angulate, short-pilose with solitary or fasciculate, spreading or reflexed hairs; petioles 1-4 mm. long; leaf-blades oblong-elliptic or ovate-oblong, 2-5.5 cm. long, 0.6-2 cm. wide, acute or acuminate at the apex, acutish at the base, firm, bright-green, ap-
pressed-pilose on both surfaces with short slender fulvous hairs; peduncles axillary and terminal, simple or usually branched, 1-6 cm. long, slender, densely short-pilose; spikes usually solitary, globose-ovoid or short-cylindric, 7-11 mm. long, 7 mm. thick; bracts broadly ovate, acuminate, glabrous; bractlets broadly ovate, half as long as the sepals, aristate-acuminate, sparsely shortvillous ; sepals lance-oblong, 2.5 mm. long, acute or acutish, 3-nerved, purplish (brownish or fuscous when dry), glabrous; filaments short, linear-subulate; staminodia equaling or exceeding the anthers, two thirds as long as the sepals or shorter, lacerate at the apex; style short, the stigma entire; seed subglobose, 1 mm. long, black and shining.
Type locality: Panama. Distribution: Panama.

Achyranthes stenophylla Standley, Contr. U. S. Nat. Herb
18: 90. 1916.
Stems slender, branched, the branches ascending or suberect, striate, very sparsely pilose or glabrate; leaves numerous, the internodes short, the petioles 2-10 mm. long, the blades linear to elliptic-linear, 2.5-5 cm. long, 3-6 mm. wide, acute or acutish at the apex, acuminate at the base, very sparsely appressed-pilose or glabrate; peduncles axillary, simple, 2-5 cm. long, short-pilose, very slender; spikes ovoid or short-cylindric, 6-10 mm. long, 6 mm. thick; bracts broadly ovate, acute, glabrous; bractlets half as long as the sepals, acuminate, longaristate, sparsely shortvillous ; sepals lance-oblong, 2.5 mm. long, acute or acutish, membranaceous, 3-nerved, sparsely short-pilose, stramineous, the tips erect or slightly incurved; filaments short, the staminodia ligulate, longer than the anthers, two thirds as long as the sepals, lacerate at the apex; style evident, the stigma entire.
Type locality: Panama. Distribution: Panama.

Achyranthes mexicana (Schlecht.) Standley, Jour
Wash. Acad. Sci. 5: 74. 1915.
Brandesia mexicana Schlecht. Linnaea 7: 392. 1832.
Telanthera microcephala Moq. in DC. Prodr. 13 2 : 371. 1849.
Telanthera mexicana Moq. in DC. Prodr. 13 2 : 372. 1849.
Alternanthera mexicana Hieron. Bot. Jahrb. 20: Beibl. 49: 8. 1895. Not A. mexicana Moq. 1849.
Plants herbaceous, or sunrutescent below; stems erect or ascending, 4-10 dm. high, sparsely branched, the branches rather stout, often geniculate, striate, pilose with spreading or retrorse hairs; petioles 2-20 mm. long; leaf-blades oval or ovate-oval, 3-10 cm. long, 1-5 cm. wide, rather abruptly long-acuminate at the apex, acute or obtuse at the base, thin, bright-green, appressed-pilose on both surfaces with long slender hairs; peduncles axillary simple, filiform or nearly so, 2-6.5 cm. long, sparsely pilose or glabrate; spikes short-cylindric or subglobose, 5—10 mm. long, 5-7 mm. thick; bracts broadly ovate, acute, subscarious, glabrous; bractlets broadly ovate, about half as long as the sepals, long-aristate, villous along the nerve, white or stramineous; sepals narrowly oblong, 2.5-3.5 mm. long, acute or acutish, membranaceous, white or stramineous, 3-nerved, glabrous, the tips erect or incurved ; staminodia longer than the anthers, slightly shorter than the sepals, ligulate, laciniate at the apex; style evident, the stigma entire; seed subglobose, 1 mm. in diameter, dark reddish-brown.
Type locality: State of Oaxaca.
Distribution: Vera Cruz to Oaxaca and Panama.