84 POACEAE 
. T. rosea Nees. A short-lived perennial: stem slender, about 1 m. tall, the 
base often decumbent; leaf-sheaths sparsely papillose-hirsute: blades flat, 2—5 
mm. wide: panicles rosy purple, 10-15 em. fong, the branches slender, ascend- 
ing: o about 5 mm. long, the Pr pedicels flexuous o urved.— 
(NATAL-GRASS. )—Prairies, Im old fields, and roadsi s , Fla. Nat. of 
Afr.—(W. I., Mez., C. A., S. A.)—For nob eult. for hay, now very abundant 
in sandy fields, groves, i pinelands, p on roadsides. Seeds E and 
spreads rapid! 
33. CHAETOCHLOA Scribn. Annuals or pen with narrow bristly 
terminal panieles, these dense and spike-like or so loose and open 
Spikelets subtended by 1 to several bristles (sterile eae), deciduous, 
falling free from the bristles; first glume broad, usually less than half the 
length of iue spikelet, 3- to 5-nerved; second glume and sterile lemma equal, 
r the former shorter, several-nerved; fertile lemma coriaceous-indurate, smooth 
or rugose. [Setaria Beauv., not Achar.]—Sixty-five species, most abundant 
in the tropical and warm-temperate parts of both hemispheres.—FoxTAIL- 
GRASSES. BRISTLY FOXTAIL-GRASSES. PIGEON-GRASSES. 
Plant annual. 
Bristles retrorsely scabrous. 1. C. verticillata. 
Bristles antrorsely scabrous. 
Bristles 5-12 at the base of each spikelet : panicle cylin- 
drie, yellow. 2. C. lutescens. 
Bristles 1-3 at the base of each spikelet. 
Second glume distinctly shorter than the spikelet. 
Leaf blades pilose. 3.. C. hispida. 
Leaf- m Scabrous but not pilose. 4. C. corr ugata. 
Second glume about as long as ms Spibelee (a little 
"ie sometimes in C. itali 
Fertile lemma smooth and shining: : plant robust, 
the panicle usually 2-5 cm. in diameter 5. C. magna. 
Fertile lemma more or less roughened or wrinkled, 
{omalle forms often purple). 6. C. italica. 
Fruit mer disarticulating, the Spikelets falling 
entir 1. C. viridis. 
Plant perennial 
ns 8-12 at the base of each spikelet. 8. C. geniculata. 
tles 1-3 at the base of each spi ikelet. 9. C. macrosperma. 
1. C. E RI e ibn. Stem 0.3-0.6 m. tall: leaf-blades flat, 7—18 
em. long, 6— = , scabrous on both surfaces: panicle 5-10 cm. long, 
compact or erm pes e and lobed to- 
e 
ward base: iru 2-2.5 mm. long, the 
bristles flexuous, 3—6 mm. long. [S. verti- 
e Beauv.]—Cult. grounds and mn 
places, E U. S. and SE Can. Nat. of E 
hare. in the S States.—(W. I., Mez., C. p L) 
2. C. ee A Stuntz. Stem as 
mueh a Fi b, ice branehed and de- 
mben p af-blades linear-lanceo- 
B s en twisted in a half inh 
panicle - em. ee seldom mor le 
e na above 
irds e i 
fertile lemma. [C. glauca (Fl. SE. U. 8.)]—(YELLOW-FOXTAIL. PIGEON- 
GRASS. )—Fields, ics 7 ds and woods, various provinces, U. $. 
ez.) 
and S Can. Nat.o —(W. I 
