STANDLEY—TROPICAL AMERICAN PHANEROGAMS. 91 
bracts and bractlets half as long as the sepals, broadly ovate, aristate-acuminate, 
subscarious, stramineous; sepals lance-oblong, 5 mm. long, acutish, subcartilaginous 
in age, 3-nerved, stramineous, sparsely short-pilose, the tips slightly spreading; 
stamen tube short; staminodia much exceeding the anthers, less than half as long 
as the sepals, ligulate, deeply fimbriate at the apex; style evident, the stigma entire. 
Type in the U. 8. National Herbarium, no. 125547, collected in the Valley of 
Cérdoba, Mexico, February 11, 1866, by Bourgeau (no. 1946). 
Related to A. williamsii, described above, but differing in the long-acuminate or 
abruptly acuminate leaves, which are densely pilose-sericeous beneath, and in the 
merely acutish, rather than acuminate, sepals. 
Gomphrena dispersa Standley, sp. nov. 
Gomphrena decumbens Mog. in DC. Prodr. 137: 410. 1849, in part, not G. 
decumbens Jacq. 
Gomphrena decumbens genuina Stuchlik, Repert. Nov. Sp. Fedde 11: 156. 
1912, in part, not G. decumbens Jacq. 
Gomphrena decumbens grandifolia Stuchlik, Repert. Nov. Sp. Fedde 11: 157. 
1912, in part. 
Prostrate or procumbent annual or perennial, much branched, the branches 20 to 100 
em. long, slender, sparsely or densely appressed-pilose; leaves numerous, short- 
petiolate, the blades oval-obovate to oblong, 1.5 to 5 cm. long, 5 to 20 mm. wide, 
obtuse to rounded at the apex, mucronate, acuminate to attenuate at the base, bright 
green, pilose-sericeous, often glabrate on the upper surface; spikes usually solitary, 
terminal or axillary, subglobose or short-cylindric, 9 to 13 mm. in diameter, each 
subtended by 2 acute sessile leaves, these usually shorter than the spikes; bracts 
rounded-ovate, acuminate, white, often denticulate; bractlets 5 to 6 mm. long, about 
3 times as long as the bracts, thin, acute to obtuse, white or rarely purplish red, nar- 
rowly cristate at the apex, the crest extending along the keel for only a short distance, 
denticulate or laciniate; perianth usually equaling the bractlets, densely lanate, the 
lobes oblong-linear, acuminate or attenuate, white; stamen tube commonly included; 
style elongate, the stigmas slender; seed 1.5 mm. long, reddish brown, shining. 
Type in the U.S. National Herbarium, no. 698287, collected at the edge of a culti- 
vated field, Sierra de Anafe, Pinar del Rfo, Cuba, December 21, 1911, by Percy 
Wilson and Brother Leén (no. 11485). 
ADDITIONAL SPECIMENS EXAMINED: 
Fiormwa: Waste ground, near Tampa, 1913, Tidestrom 7005. Without locality, 
Rugel 98. 
Mexico: Guadalajara, Jalisco, 1886, Palmer 238. Atlixco, Puebla, 1893, Nelson. 
Valley of Oaxaca, 1894, Nelson 1307. Corral de las Piedras, vicinity of 
Zacuapan, Veracruz, 1906, Purpus 2284. Yucatén, Gaumer 369 pt. Vicinity 
of Mérida, Yucatdn, 1912, Collins 11. 
GuateMaLa: Escuintla, 1890, J. D. Smith 1977. Livingston, 1905, von Tiirck- 
heim (J. D. Smith, no. 8738). Morén, Depart. Amatitlan, Kellerman 4840. 
Nicaracua: C. Wright. 
Ex Satvapor: Renson 154. 
Costa Rica: Hacienda Babilonia, Tonduz 215. Rfo Hondo, Plains of Santa 
Clara, 1903, Cook & Doyle 596. Nicoya, 1900, Tonduz (Inst. Fis. Geogr. 
Costa Rica, no. 13701). 
Cusa: Herradura, 1907, Earle 766. Vicinity of La Gloria, Camaguey, 1909, 
Shafer 63. San Luis, Province of Pinar del Rio, 1911, Britton, Britton & Cowell 
9738. Isle of Pines, 1904, Curtiss 410; 1901, A. A. Taylor 88; 1900, Palmer & 
Riley 1117. Pinar del Rio, 1900, Palmer & Riley45. Camaguey to Santayana, 
1909, Britton 2350. 
Jamaica: Up Park Camp, 1912, Harris 11542. 
Porto Rico: Santurce, 1913, Chase 63454. 
