Part 2, 1917] AMARANTHACEAE U7 
Type Locatity: Bessan, France. 
_DIsTRIBUTION: Argentina; adventive in waste ground in New York, North Carolina, and 
Louisiana; also in Europe. 
InLustRations: Britt. & Brown, Ill. Fl. f. 1407; ed. 2. f. 1668; Fiori & Paol. Ic. Fl. Ital. f. 1052. 
35. Amaranthus muricatus (Moq.) Gillies; (Mog. in DC. Prodr. 13?: 
276, as synonym. 1849) Hicken, Apunt. Hist. Nat. 2: 92. 
1910. 
Euxolus muricatus Mog, in DC. Prodr. 132: 276. 1849. 
Stems slender, erect or ascending, flexuous, 3-7 dm. high, sulcate-striate, glabrous, much 
branched; petioles 5-15 mm. long; leaf-blades linear to oblong-linear, 2-8 cm. long, rounded 
at the apex, apiculate, attenuate at the base and decurrent, deep-green, glabrous; flowers 
monoecious, in dense, often interrupted, erect or drooping, paniculate spikes, these 1.5-6 cm. 
long; bracts broadly ovate, obtuse or acutish, shorter than the flowers; sepals 5, narrowly. 
oblong, obtuse or acutish, l-nerved, mucronate, 1.75 mm. long; stamens 3; style-branches 3, 
short; utricle subglobose, about equaling the sepals, indehiscent, strongly rugose-tuberculate; 
seed obovoid, 1.5 mm. long, dark reddish-brown or black, dull. 
TYPE LocaLity: Near Mendoza, Argentina. 
5 _Disrrisurion: Argentina; adventive about Mobile, Alabama; adventive, also, in France and 
pain. 
36. Amaranthus gracilis Desf. Tabl. Bot. 43. 1804. 
Chenopodium caudatum Jacq. Coll. 2: 325. 1788. Not Amaranthus caudatus L. 1753. 
Albersia gracilis Webb. & Berth. Phyt. Canar. 3: 287. 1836. 
Euxolus caudatus Moq. in DC. Prodr. 13?: 274. 1849, 
Euxolus caudatus gracilis Moq. in DC. Prodr. 132: 274. 1849. 
Euxolus caudatus maximus Mog. in DC. Prodr. 13%: 274, 1849. 
Stems rather slender, erect, 2-9 dm. high, with numerous ascending branches, glabrous, 
smooth; petioles slender, 1-8 cm. long; leaf-blades ovate or rhombic-ovate, 2-8 cm. long, round- 
ed or narrowed at the apex, the tip emarginate, rounded to broadly cuneate at the base, thin, 
deep-green, glabrous, prominently nerved; flowers monoecious, in slender, axillary or terminal, 
often paniculate spikes 4-12 cm. long and 4-8 mm. thick, dense short clusters often 
present in the axils below the spikes; bracts ovate to lanceolate, acute, scarious, much shorter 
than the flowers; sepals 3, oblong to linear-oblong, acute or obtuse, cuspidate, 1-1.5 mm. long, 
equaling or shorter than the utricle; stamens 3; style-branches 3; utricle globose, thin-walled, 
strongly rugose, green; seed rotund, about 1 mm. in diameter, black or dark reddish-brown, 
dull. 
Typz LocaLity: Guinea. . . 
DISTRIBUTION: Waste ground, Florida; adventive in North Carolina and Alabama, and on 
ballast northward; West Indies, Mexico, and Guatemala, in tropical regions around the world. 
ILLUSTRATIONS: Jacq. Ic. Pl. Rar. pl. 344; Mart. Fl. Bras. 5!: pl. 72; Rob. & Fern. Man. ff 723. 
37. Amaranthus acutilobus Uline & Bray, Bot. Gaz. 19: 320. 
1894. 
Euxolus emarginatus Braun & Bouché, Ind. Sem. Hort. Berol. 1851: 13. 1851. Not Amaranthus 
emarginatus Salzm. 1894. 
Albersia emarginata Aschers. Ber. Deuts. Bot. Ges. 8: 121. 1890. 
Stems slender, succulent, erect, ascending, or decumbent, much branched from the base, 
glabrous; petioles slender, 5-15 mm. long; leaf-blades rhombic-ovate to spatulate or obcordate, 
7-20 mm. long, 5-13 mm. wide, abruptly contracted at the base and cuneate or acute, decur- 
rent, retuse at the apex, usually deeply so, the sinus V-shaped or rounded, the lobes rounded, 
bright-green, thin, glabrous, prominently veined; flowers monoecious, chiefly in small axillary 
giomerules much shorter than the petioles, these crowded toward the ends of the branches to 
form a slender loose leafy spike; bracts lanceolate, twice as long as the sepals of the pistillate 
flowers or longer and equaling the sepals of the staminate ones, attenuate to slender rigid pun- 
gent green tips; sepals of the staminate flowers usually 5, 2-2.5 mm. long, elliptic-oblong, 
