46 TRIAN DRIA. d i g y n i a .
paspalodes. D. cuirais repentibus, patulis : vagi-
nis glabris , ad collum villosis; foliis directe
patentibus : spicis binis, subuncia-
libus , basi subvillosis ; rachi latiuscula,
glabella ; floribus solitariis, bifariam im-
bricatis , glabriusculis.
Ob s . Affinis P. distachyo. Link.
H a b . in pascuis aridis, juxta Char<on.
serotina. D. decumbens : foliis vaginisque molliter
villosissimis : spicis pluribus, seta-
ceis : floribus pusiïlis, binis, (rarius ternis)
omnibus pedicellatis : valvula extima mi-
nutissima.
Synthehisma serotina. Walt.
H a b . in graminosis humidis Carolina;.
P A N I C ü M . f .
Gluma 3-val vis, valva tertia exteriore dorsali,
minore. Cal. 2-valvis, persistens.
* Spicata.
GLAucuM. P. foliisrariter pilosis; spica oblonga,
L. confertim setosa : involucellis multisets
, bifloris : glumis sèminiferis undu-
lato-rugosis.
H a b . in humidis Pensylvaniæ, Virginias, Carolinæ Q,
Crus galli. P. culmo patulo : vaginis foliisque
glabris : spicis longis , altérais, solita-
TRIANDRIA. d i g y n i a . 47
riis geminisque : glumis ventricoso-ova-
tis, pubeseentibus ; passim vel rarius omnibus
aristatis.
H a b . in Carolina 0 .
MURicATUM. P. humifusum : spiels solitarie alters
nis, simplicibus r glumis turgide ovatis,
passim aristatis, muricato-hispidissimis.
Ob s. Affine C. Galli : fibres habitu Cenchri.
H a b . in Canada ad ripas lacus Champlain et ad lacnm
Ontario Q.
hirtellum. P. culmo repente : foliis ovali-lanceo-
L. latis : spica interrupt»; spiculis brevi-
bus, paucifloris, secundis : glumis aristatis;
arista valvuîæ extimæ longissima.
H a b . in nmbrosis a Carolina ad Floridam.
molle. P. rachi glumisque dense mollissime-
quepubentibus : spicis solitariis, al ternis,
simplicissimis ; glumis solitarie distincte-
que altérais, ovalibus, muticis, bifloris;
flore altero masculo, altero hermaphro-
dito.
Obs. Efabitus Mjxii purmtati. L ink.
H a b . in» cespitosis Florid®.
** Paniculata.
CAPiLLARE. P. vaginis hirsutissimis : panicula ca-
L. pillari, ramasissâma., deeomposita, laxa :