24. 0. Intermedia Schult. 
Glauco-virens. Rhizomate brevissimo v. parım elongato 
deseendente tenni; culmis pluribus faseiculato - caespitosis se- 
taceis saepiss. flexnosis recurvatisve plerumqne (in uno cae- 
spite) valde inaequalibns, 8—1 poll. long., compresso -qua- 
drangulis striatis; vaginis membranaceo - herbaceis arctis 5—2 
lin. long. ore hrevissime lanceolato -produetis; spieula ovata 
v. oblongo -lanceolata 105-flora 2; —% lin. long.; squa- 
mis trispiris remotis pellusido-membranaceis lanceolato - 
ovatis obfusiuseulis carinato -convexis subnninerviis viridnle - 
stramineis ad latera ferruginescentibus, infima bracteali hre- 
viore apice rotundato - obtusıt; earyopsi (matura) parra squama 
' breviore oboyata versus basin attenuata interne plane - 
convera, exlerne alte convexa obtusangula, subtilissime 
undulato - cancellata tlavo-virente (tandem olivacea) nitida; 
tuberenlo majusenlo subwlato-conico compresso pallide fer- 
rugineo, basi soluto; setis 6 validulis pallidis caryopsi multo 
ongioribus ; siylo elongato pertenwi hreviter bifide. 
E, intermedia Schult. Mant. &. 9. — Torrey, k «. 
302. Scirpus intermed. Mühlenh. Gram. 31. — E. rech- 
nata Kunth, 143. — Sc. pusillws Willd, herb. no. 1171, 
fol. 1. — Variat culmis Hlaceidis reetis fere capillaribus mi- 
nus inaequalibns spicnlisgue minoribus, 5—7- Horis. 
America septentr. 
2%. H. albivaginata Beklr. 
Rhizomate plerumque elongato repente pertenui; enlmis 
'tenuibus obsolete quadrangulis m. m. compressis strialis ob- 
sdeteque sulcatis; vaginis (2) superne valde ampliatis te- 
auissime membhranaceis (itagııe fugacihus) erispatis niveis, 
antice fissis, ore obtusissimis, inferne angusfis, superiore elon- 
gata, non raro Supra pollicem louga; spieula compressa ovato- 
