971 
enlwis strietinsenlis valde inaequalibus setaceis hasın versus 
ramosam paueiloliatis, triangulis, superne non raro obsolete 
angulatis, 12—3 poll. alt. (ad 18-pollie., Gray); folis an- 
gustissimis subsetaceis brevibusve leviter Nexuosis ac cana- 
liewlatis, apice margiwibus winntissime dentatis, 1',-—2"% 
poll. long.; fascienlis 5— 2 remotissimis parvis (34, Im. 
diam.) hreviter peduneulatis suhretundis plurispieulatis; foliis 
braetealibus sursum valde decreseentibus, 3—Y, poll. long. ; 
spiculis parvis confertissiwis plurilloris, Dertbus subomnihus 
fertilibus; squamis membranaceis densis oblongo-ovatis con- 
vexis obtusis mucronulatis ferrugineo - fuscescentibus opacis, 
margine angusto pallidioribus; car. squama virc. Y breviore 
ohovata Ientieulari pedicellata | evi rufo-fusceseente nitidula ; 
rostro caryopsi fere dimidio breviore trianguları obtusiusenlo 
vonmpresse viridulo, basi parum dilatata ad fructus margines 
deeurrente; setis 6 rigidis reirorsum hispidulis Serrugimeis 
caryopsi erostri subuequilongis; style exserto suhtili, 
bifido. . 
R. Änieskernii Carey (Sıllim. Journ. 1847, — ex 
Steud.) A. Gray Man. ed la. p. 533. — R. Grayana 
Kniesk. in sched. 
America boreal, New Jersey (Tuckermann mis.) 
55. BR. cephalantha A. Gray. 
Pallide viridis; pluriculmis; radiee fibrosa; culmis 
1'r--3 ped. alt. strietis tenwibus v. validis, rigidis trisonis 
striatisque, bası pluri — superne paucifoliatis; foliis rigidis 
— bhasilaribus confertis patentihus — anguste linearibus 
(3—16 poll. long.) eanuliculatis obtusis, apice vix denficu- 
latis; corymbis sacpius pluribus (1-—6) remotis subcapitato- 
