148 NORTH AMERICAN FLORA [VoLuME 21 
Bractlets bright-white, indurate, strongly compressed, 
broadly cristate. 5. G. Palmeri. 
Bractlets yellowish- or brownish-white, slightly compressed, 
narrowly cristate. 6. G. nana, 
Spikes ney solitary, sometimes 2 or 3 together, subtended by 
eaves. 
Crests denticulate, often sparsely so; heads about 1 cm. 
thick, usually tinged with red; plants mostly decumbent 
or spreading. 7. G. decumbens. 
Crests laciniate; heads mostly 1.5 cm. thick, yellowish- 
white, rarely reddish; plants commonly erect. 8. G. nitida. 
Heads of flowers 20-28 mm. in diameter. 
Annual; leaf-blades mostly oblong to ovate. 9. G. globosa. 
Perennial from a fusiform root; leaf-blades oblanceolate to oblong- 
linear. 10. G. Haageana. 
Bractlets not cristate. 
Heads of flowers subtended by 2 or more leaves. ll. G. Sonorae. 
Heads of flowers not subtended by leaves. 
Plants cespitose, low, each stem bearing 1 or 2 pairs of leaves; sepals 
obtuse or rounded at the apex. 
Leaves green, very sparsely appressed-pilose; blades of the cauline 
leaves longer than broad. 12, G. viridis, 
Leaves grayish, densely appressed-pilose; blades of the cauline 
leaves usually as broad as long. 13. G. caespitosa. 
Plants not cespitose, tall, the stems bearing numerous pairs of leaves; 
sepals acute or acuminate. 
Pubescence of the stems appressed; peduncles longer than the 
leaves. 14. G. pilosa. 
Pubescence of the stems spreading or ascending; peduncles shorter 
than the leaves. 15. G. Tuerckheimii. 
1. Gomphrena Nealleyi Coult. & Fisher, Bot. Gaz. 17: 349. 1892. 
Perennial from a thickened fleshy fusiform root; plants erect or ascending, 1-4 dm. high, 
branched at the base; stems simple or with few erect branches, slender, pilose with long, 
slender, appressed or spreading hairs; leaves short-petiolate, the blades obovate-oblong to 
oval, or the lowest spatulate, 1.5-4 cm. long, 0.6-1.5 cm. wide, rounded at the apex and mucro- 
nate, acute to actiminate at the base, green, copiously pilose-sericeous on the lower surface, 
glabrous on the upper; heads solitary, terminating long peduncles, each subtended by 2 sessile, 
oval or ovate bracts, these equaling or shorter than the heads, the latter subglobose or short- 
cylindric, about 12 mm. in diameter; bracts ovate-triangular, long-acuminate, yellowish-white; 
bractlets 2-2.5 times as long as the bracts, long-acuminate, yellowish-white or pinkish, sub- 
coriaceous, narrowly cristate just below the apex, the crest entire or denticulate; perianth 
slightly shorter than the bractlets, densely lanate below, the lobes oblong-linear, acuminate, 
whitish; stamen-tube usually exserted; stigmas very short and stout, subsessile; seed globose- 
ovoid, 1.5 mm. long, reddish-brown, shining. 
Tvpre LocALIty: Corpus Christi, Texas. 
DistRiBuTION: Southwestern Texas and adjacent Mexico. 
2. Gomphrena parviceps Standley, Contr. U. S. Nat. Herb. 18: 92. 
1916. 
Gomphrena decumbens Pringlei Stuchlik, Repert. Sp. Nov. 11: 156, in part. 1912. Not G. Pringlei 
Coult. & Fisher, 1892. 
Prostrate or procumbent annual, much branched; stems 1-3 dm. long, slender or stout, 
often tinged with red, appressed-pilose; leaves numerous, subsessile, the blades oblong or 
spatulate, 1-3.5 cm. long, 0.4-1 cm. wide, rounded or obtuse at the apex, acutish at the base, 
green, appressed-pilose beneath, glabrate above; heads solitary or glomerate, terminal or 
axillary, subglobose, 7 mm. in diameter, each spike or cluster of spikes subtended by 2 or 
several sessile leaves, these usually 2-3 times as long as the heads; bracts broadly ovate, 
acuminate; bractlets 3 mm. long, scarious, white, tinged with pink, twice as long as the bracts, 
narrowly cristate at the apex, the crest obscurely denticulate, pink or white; perianth con- 
spicuously exceeding the bractlets, the lobes oblong, obtuse, truncate, or emarginate at the 
apex, the outer ones subcoriaceous, white or pink, glabrous, the inner ones thin, bright-green 
