POACEAE 103 
S. cryptandrus (Torr.) A. Gray. Stems erect, m 30- d ae tall: 
ie blades flat, tapering to a fine point: panicles ‘term nal and axillary, in- 
cluded at base in upper sheath, sometimes entirely inc ded the well- developed 
nd panieles open, as much as : spikelets crowded along the 
upper part of the main branches, 2-25 mm. long.—Sandy open pices various 
provinces, N. C. to Tex., Ariz., Wash., and Me. 
12. S. gracilis (Trin.) gd Plant tufted, with numerous long pid leaves: 
stem erect, slender, 30—60 cm. tall: le Es blades ped less than 1 mm. wide 
paniele narrowly DD 10- 18 em. long, 2-3 cm. wide, purple T8. ‘juncea 
Kunth S. ejuncidus Nash ]—Pinelands 20 sandy woods, Coastal Plain, Fla. 
N. C. 
© 
=: 
Do 
C 
e 
B 
-— 
o 
B 
0S 
i3. S. aique: Harper. Plant tufted, with numerous long basal leaves: 
stem 50-60 em. ta s v af-blades firm, glabrous, filiform, channeled, flexuous, 
villous above "the ligule: paniele oblong- pyramidal, 20 cm. long, about 8 em. 
wide.—Moist pinelands, ronem l Plain, Ga. 
14. S. Curtissii (Vasey) Small. Stem pw erect, 30-60 cm. tall: leaf- 
blades 0.5-1.5 mm. e: panicle 15—20 cm. long, the Dian Ned rather stiffly 
ascending.—M oist ia Coastal Plain, "Tis. to N. C. 
15. S. floridanus Chapm. Stem rather stout, 50—100 cm. tall: panicle 15—40 
em. M mostly 5-10 em. wide.—Moist pinelands, Coastal Plain, Fla. and Ga. 
POLYPOGON Desf. Annuals or perennials, usually decumbent, with 
flat dd and dense soft- iwi spike-like panicles. Spikelets 1-flowered, the 
pedicel disarticulating a t distance below the glumes, leaving a short- 
pen sl attached; is es equal, entire or 2-lobed, awned from the tip 
ríf n the lobes, the awn slender, straight; lemma much shorter than 
js ones doge RUE bearing a slender straight awn shorter than the 
awns of the glumes.—Ten species, most abundant in the Eastern Hemisphere. 
—BEARD-GRASSES. 
Plant annual: s 6-10 m 
Glumes slightly lobed, he he not ‘ciliate. 
lS monspeliensis: 
Glumes S prominently lobed, the lobes ciliate-fringed. . 2 P. D 
Plant perennial: awns mm. long. P. 
1. P. monspeliensis (L.) Desf. Stem 
usually 20-30 cm. tall, sometimes taller 
leaf-sheaths glabrous: panicle pale, pee Wd 
and silky, u usually FA cm. ase peer Y, 
a, long, awns as 10 | | 
s E * Moit p dM pe MW [ 
Bine. N. C. to Tex. and Me.; also on N 
Paeifie Coast. Nat. of Eu.—(Mez., S. A.) - | . 
N 
about 
A 
Sse 
~ 
— 
un. S 
SS 
aritimus Willd. Stem 20-30 cm. 
2- P. ES 7 
tall: leat. blades usually less than 5 cm. CS 
Y 
long, 2 to 4 mm. wide: panicle T NI | 
scarcely lobed, 5 em. long, or les em ` 
thick: glumes 3 mm. long, villous, T awn \ Æ 
as much as 7 mm. lon a ch a and ae 
fields, Tybee Island, Ga. Nat. of Eu. 
3. P. lutosus d A, Lene Stem 10-50 em. tall:. leaf- UN o 
panicle as much as 10 ong, somewhat lobed: spikelet 2-3 long. 
Lf. littoralis J. E. Smith]. ay P aid P" r3 roadsides, various eo ee 
. to Calif. and Wash. Nat. of Eu.— NL S. A.) 
