TRI ANDRIA— MONOGYNIA.

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Radix fibrosa, ex qua prodeunt plures calami csspitosi,tereti-compressi, striati, tenues, a pollice ad spitha-mam longi, erecti, vel deelinato-patuli , inferne fo-liosi. Folia linearia, angusta, acuminata, striata , ca-naliculata, vaginantia , sspius una cum vaginis pube-scentia , pauca , superiora nunc caule breviora , nunclongiora , ima minora. Stipula subnulla , sive margoobsoletus. Flores in umbella spuria terminali , qu®variat simplex , decomposita , et supradecomposita .Involucrum universale subtriphyllum , inaequale , fo-liolis folia caulina referentibus, pubescentibus , autsaltem margine hispidulis, majore subinde umbellamsuperante, vel aequante . Involucella consimilia , sedlonge tenuiora. Radii, et radioli basi obvoluti bracteo-la membranacea , pilosa , ferruginea . Locusta sessilis,aut subsessilis in centro umbellae , et umbellularum.Reliquae solitari®, aut spicat® in radiis , vel radiolis .Omnes ovoides , acuts , ex viridi ferrugines , vel fu-se* . Glums ovat*, vel oblong® , plus minus miicro-nats , inferiores passim longius , mucrone interdumrecurvulo , carina insigni, virenti, lateribus nunc pal-lide ferrugineis , nunc fuscis . Stilus generis , statimsupra bulbum brevi tractu nudus, deinde linea mar-ginali utrinque barbatus . Nucula minuta , obovata ,lenticularis, longitudinaliter multicostata, sulcis intercostam, et costam transverse rugosis, matura flavi-do-fusea . Set* hypogyn® nulls. Stirps in paludibuss®pe gregaria, terram late operiens, profecto indige-na, nec cum oryza invecta, cum litora paludosa omniaItali®, ubi nunquam oryza culta fuit, inhabitet.

POGONOSTYLIS.

Scirpo-oyperus Mich. Nov. pl. gen. p. 4q. ord. 7 .

Locusta: e glumis undique imbricatis . Stilus su-perne latere externo utrinque fimbriatus, in-ferne Imlbosns , bulbi basi circum circa barba-ta , barba supra ovarium rleflexa , sub bulboarticulatus cum ovario , articulo demum sece-dente . Stigma bifidum , puberulum . Pericar-pium nucula. Setae hypogyn® nullae ( saltemiit specie hactenus detecta ) .