Par? 2, 1917] AMARANTHACEAE 141 
globose to cylindric, 1.2-3.5 em. long, 1 cm. thick, the flowers yellowish-white; bracts and bract- 
lets broadly ovate, half as long as the sepals, acuminate, mucronulate, hyaline, glabrous, 
setrulate near the apex; sepals oblong, 4 mm. long, acute, serrulate at the apex, 1-nerved, 
glabrous; filaments linear, the tube about as long as the ovary; staminodia linear, acutish, 
entire, longer than the filaments, two thirds as long as the sepals: style short. 
TYPE Locality: On dry and volcanic rocks of the barranca of Los Bajios, near the hot spring 
of Acasonica, Vera Cruz, Mexico. 
DISTRIBUTION: Tamaulipas to Guatemala. 
15. Achyranthes megaphylla Standley, sp. nov. 
Erect or decumbent perennial; stems 6 dm. high, simple, stout, geniculate at the base and 
rooting at the nodes, appressed-pilose above, glabrate kelow; petioles 3-13 mm. long, stout; 
leaf-blades broadly oval to oblong-oval, 12-17.5 em. long, 5.5-7.5 em. wide, abruptly long- 
acuminate at the apex, obtuse or rounded and short-decurrent at the base, slightly succulent, 
olivaceous when dry, glabrous above, sparsely appressed-pilose beneath; spikes axillary and 
terminal, sessile, solitary, about 2 cm. long and 1.5 cm. thick, the flowers brown; bracts and 
bractlets half as long as the sepals, ovate, long-attenuate, short-pilose, the tips rigid; sepals 
lance-oblong, 6-7 mm. long, attenuate, 3- or 5-nerved, sparsely short-pilose; filaments linear, 
the tube short; staminodia ligtlate, exceeding the anthers, pectinate-laciniate nearly to the 
base; style elongate; seed 2.5 mm. long, ovoid, reddish-brown, shining. 
Type collected in forest, Rio Hondo, plains of Santa Clara, Costa Rica, altitude 100 meters, 
May 6, 1903, O. F. Cook & C. B. Doyle 573 (U. S. Nat. Herb. no. 474437). 
16. Achyranthes Urbani Standley, Jour. Wash. Acad. Sci. 5: 74. 
1915. 
aoe geniculata Urban, Symb. Ant. 7: 211. 1912. Not Achyranthes geniculata Standley, 
Procumbent perennial; stems numerous from a woody caudex, slender, 0.5-3 dm. long, 
subgeniculate, branched, the branches striate, appressed-pilose; petioles slender, 2-4 mm. 
long; leaf-blades rounded-ovate or broadly ovate to suborbicular, 1-2 cm. long, 0.6-1.5 cm. 
wide, acute to rounded at the apex, rounded at the base, olivaceous when dry, sparsely ap- 
pressed-pilose when young, glabrate in age; spikes terminal and axillary, sessile, solitary, ovoid 
or cylindric, 1.2 em. long or less, the flowers sordid-brownish; bracts and bractlets broadly 
ovate, acuminate, mucronate, less than half as long as the sepals, nearly glabrous; sepals lance- 
oblong, 3 mm. long, long-acuminate, 3- or 5-nerved; filaments lance-subulate, the tube elongate; 
staminodia ligulate, equaling the filaments, laciniate at the apex; style | mm. long; utricle 
ovoid; seed oval, 1.3 mm, long, brown, shining. 
Type Locality: Near Barahona, Santo Domingo. 
DisrrreutTion: On rocks along the coast, Santo Domingo. 
17. Achyranthes olivacea (Urban) Standley, Jour. Wash. Acad. 
Sci. 5: 74. 1915. 
Telanthera olivacea Urban, Symb. Ant. 1: 302. 1899. 
Alternanthera olivacea Urban, Symb. Ant. 5: 340. 1907. 
Procumbent perennial, suffrutescent at the base; stems numerous, 2-5 dm. long, sparsely 
branched, the branches slender, terete, densely appressed-pilose when young, glabrate in age; 
petioles 2-4 mm. long; leaf-blades ovate or ovate-oblong, 2-5 cm. long, 0.8-2.2 cm. wide, 
rounded to acutish at the apex, mucronate, obtuse or rounded at the base and slightly decurrent, 
thick and firm, olivaceous, sparsely appressed-pubescent with very short hairs; spikes axillary, 
solitary or glomerate, sessile or short-pedunculate, short-cylindric, 1 cm. long or less, the 
flowers brown; bracts and bractlets broadly ovate, less than half as long as the sepals, acumi- 
nate, short-pilose; sepals ovate-lanceolate, 3.5 mm. long, attenuate, 3- or 5-nerved, short- 
pilose; filaments subulate, the tube short, the staminodia ligulate, equaling the filaments, 
laciniate at the apex; style nearly as long as the ovary; utricle ovoid; seed ovoid, 1.2 mm. 
long, brownish-black, shining. 
Type LOCALITY: St. Vincent. . 
DISTRIBUTION: In damp woods, St. Vincent to Grenada. 
