AMARANTHACEAE 475 
. floridana S. Wats. Stem slender, 4-15 dm. tall, simple, or pr at 
the puis e rir T elliptic- -linear, or narrowly elliptic , 0.8—11 em. long: 
Se ca 2.5 mm. long; sepals ovate to elliptic-ovate: pistilate pi 
1-1.5 ey puer: lanceolate, acuminate: utricle about . long.— 
doen aad marshes, Fla.—All yea 
. A. concatenata Moq. y oe 0. aa m. tall, usually much- un leaf- 
blades elliptic to lanceolate, 2.5— ong: staminate calyx abou m. lon ng; 
sepals lanceolate to elliptic. been pistillate calyx 1-1.5 m E um ; sepal 
subulate- D im utricle about 1 mm. long.—Sandy banks aT dunes, Coastal 
Plain, Miss. to La.—Sum.—fall. 
5. A. alabamensis Standley. Stem stout, 1.5—2 m. tall, rins ee o 
blades narrowly ovate to elliptic-ovate or elliptic: -lanceolate, 4-9 m. long: 
na alyx abo mm. long; sepals elliptie to Be ‘lanceolate: Sistillato 
calyx 1—1.5. mm. long; sepals pagar bue about 1.5 mm. long.—Brackish 
marshes along the coast, Ala. to La.—Sum.—fall. 
A. subnuda (S. Wats.) Standley. Stem slender, 0.1-0.4 m. long, prostrate 
id ascending, much-branched in m e planis: Jeaf-blades 2B obo- 
vate, D e gee or lance 0.7-7 e ong: staminate calyx about 
E om ong; sepals elliptie: sistillafe calyx 12 mm. long; sepals juu 
Do E md. about 1.5 mm. long- — Muddy or sandy stream banks, 
nt terior Lowland provinces, Tenn. to Mo., S. D., and Ont.—Sum.—fall. 
A. tamariscina (Nutt.) Wood. Stem ut, 0.5-2 m. tall, more or less 
branched: leaf-blades ovate-lanceolate to lan eolate or elliptic, 2-11 em. long: 
stam calyx 2.5-3 mm. long; sepals Mises to ovate-lanceolate: 
pistillete ealyx 1-2 mm . lo ong; sepals eR to lanceolate-subulate: utricle 
1.5 mm. long L Swamps, fields, 2 stream-banks, various provinces, Tenn. to 
Tex., N. M., S. D., and Ky.; adv. E.— Sum. —fall. 
4, CENTROSTACHYS Wall Herbs or woody plants. Leaves opposite: 
blades entire. Flowers perfect, in slender elongate spikes, commonly deflexed. 
Sepals 4 or 5, becoming firm. Stamens 5 or rarely fewer. Styles united.— 
About 12 species, natives of tropical aa warm regions. 
Leaf-blades abruptly pointed: sepals less than 5 mm. long: utricles less than 2.5 
mm. long. 1. C. indica 
Leaf-blades acuminate: sepals over 5 mm. long: utricles over 2.5 
mm. long. 2. C. aspera. 
1. C. indica (L.) Standley. Plants ed A tall, =a p leaf-blades 
uud rhombie-ovate to obovate or cuneate, 1— 3 em ong, truneate or retuse 
apex, and abruptly tipped: Dee 
2. 5-8 mm. i ong-aeuminate: 
2 e 3—4 "E Tu utriele with a 
mm. lon 
at the ^ 
nde obras ol m. |—Cultiva ated 
d cim and waste places, Con Plain, Fla. 
o Ala. Nat. of Asia.— (W. I., Mex M A., 
$ A.) 
2. C. aspera (L.) Standley. Plants 6—14 
dm. tall, copiously pubescent: leaf-blades 
elliptic or nearly so, 7-16 cm. long, acumi- 
nate: braets 4—4.5 mm. long, abruptly long- 
aristate: sepals m o ete 6-7 mm. 
long: utricle about 3 lon [A 
mm chyr 
anthes aspera L. ]—Hammocks, S Fla. Nat. of trop. Am.— (W. I., Mez., C. A.) 
