Part 2, 1917] AMARANTHACEAE 137 
oblong-lanceolate, 4 mm. long, acute, 3-nerved, sparsely pilose below or glabrate; stamens 5, 
the filaments subulate, the tube very short; staminodia much shorter than the filaments, ovate, 
denticulate; style very short; utricle orbicular or rounded-obovate, nearly half as long as the 
sepals; seed orbicular, 1 mm. broad, dark-brown, shining. 
TYPE Locality: Tropical America, : 
DISTRIBUTION: Adventive along the coast from North Carolina to Louisiana; on ballast at 
Camden, New Jersey; in damp soil in the Bahamas and the Greater Antilles; Guadeloupe; Grenada; 
eastern Mexico; Panama; also in Brazil. 
ILLUSTRATIONS: Mart. Fl. Bras. 51: pl. 56; Sloane, Hist. Jam. pl. 86, f. 2. 
5. Achyranthes sessilis (I.) Steud. (Nom. Bot. ed. 2. 1: 16, as synonym. 
1840); Standley, Jour. Wash. Acad. Sci. 5: 73. 1915. 
Gomphrena sessilis L,. Sp. Pl. 225. 1753. 
Illecebrum sessile L,. Sp. Pl. ed. 2.300. 1762. 
Alternanthera triandra Lam. Encyc. 1: 95. 1783. 
Alternanthera denticulata R. Br. Prodr. 417. 1810, 
Alternanthera sessilis R. Br. Prodr. 417. 1810. 
Allaganthera Forskalii Mart. Pl. Hort. Erlang. 69. 1814. 
Paronychia sessilis Desf. Tabl. Bot. ed. 2.54. 1815. 
Illecebrum denticulatum Spreng. Syst. 1: 820. 1825, 
Achyrantha triandra Roxb. Fl. Ind. 1: 678. 1832. 
Procumbent annual or perennial; stems 2-6 dm. long, often rooting at the nodes, simple 
or sparsely branched, the branches slender, puberulent in lines or glabrate; petioles 1-4 mm. 
long; leaf-blades elliptic to oblong-obovate or spatulate-obovate, 1.2-5 em, long, 0.5-2.2 em. 
wide, rounded to acuminate at the apex, cuneate at the base, entire or obscurely denticulate, 
bright-green, glabrous, or sparsely villous along the nerves beneath ; heads sessile, axillary, 
solitary or glomerate, subglobose, the flowers white; bracts and bractlets ovate, mucronate, 
one third to half as long as the sepals, glabrous; sepals broadly ovate, 1.5 mm. long, acute, 
hyaline, 1-nerved, glabrous, the margins obscurely denticulate; filaments subulate-linear, the 
tube about as long as the ovary; staminodia equaling the filaments, subulate, entire; style very 
short; utricle obcordate, equaling or slightly exceeding the calyx, compressed; seed 1 mm. long, 
yellowish, dull. 
Tyre Locatity: India. 
DistrreuTion: General in the West Indies; Costa Rica; also from the Guianas to Brazil, and 
n Africa, southern and eastern Asia, the East Indies, and Australia. 
ILLUSTRATIONS: Wight, Ic. #1. 727; Dict. Sci. Nat. pl. 194; E. & P. Nat. PA. 318: f. 48, H; Mart. 
Fl. Bras. 51: 1. 57, f. 2. 
6. Achyranthes serpyllifolia Poir. in Lam. Encyc. Suppl. 1: 11. 1810. 
Iresine serpyllifolia Mog. in DC. Prodr. 13?: 341. 1849. 
Achyranthes tenella Poit.; Moq. in DC. Prodr. 132: 341, as synonym. 1849. 
Alternanthera serpyllifolia Urban, Symb. Ant. 5: 340. 1907. 
Stems sufirtuticose, prostrate, very slender, flexuous, branched, geniculate, terete, striate, 
glabrate, the branches filiform, divaricate, appressed-pubescent, villous in the axils; petioles 2-6 
mm. long; leaf-blades ovate-orbicular, 5-15 mm. long, 3-12 mm. wide, subdecurrent at the base, 
mucronulate at the apex, subcoriaceous, the younger ones appressed-hirtellous; heads sessile; 
axillary and terminal, oblong, obtuse, 5-10 mm. long, 4 mm. in diameter, the rachis villous, the 
flowers sublustrous, subfuscous; bracts and bractlets about one third as long as the perianth, 
acute, pilosulous, white; sepals ovate-lanceolate, 2 mm. long, acute, 3-nerved, hirtellous; 
filaments short, triangular-subulate; staminodia none; utricle ovoid, subcompressed; seed 
oblong, lustrous, reddish-brown. 
TYPE LOCALITY: Hispaniola. 
DISTRIBUTION: Hispaniola and eastern Cuba. 
7. Achyranthes martinicensis (Moq.) Standley, Jour. Wash. Acad. 
Sci. 5: 73. 1915. 
Telanthera martinicensis Moq. in DC. Prodr. 13?: 366, 1849, 
Stems procumbent, 1-3 dm. long, slender, sparsely branched, the branches geniculate, 
striate, pilose; petioles 1-2 mm. long; leaf-biades orbicular or ovate-orbicular, 7-10 mm. long, 
