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Show The Hiflory of P L A N T S. Clafs the Twenty Firfl. " MON.lECIA. p !ants in which the male and female flowers are placed feparately on the fame plant. 0 F the Monrecia fome have only one fiamen, fome have three, fome four, fome five, feme fix, and feme very numerous ones; fame alfo are monadelphous, or have their .fiamina connected into one body at their bafes; others are Syngenefious and others Gynandrous. They may therefore be conveniently arranged, from thefe di~ ftinctions, into eight feparate orders. Clqfs the Twenty Fir.ft. Order the Firjl. MONJECIA MONANDRIA. Plants which have the male and female flowers fiparate, but on the fame plant ; and have only a jingle Jlamen in the male flowers. C E R A T 0 C A R P U S. I N the male flower, the calyx is divided into two parts; there is no corolla : the fiamen is fingle, and of a very great length. In the female flower, the calyx is compofed of two leaves, and grows to the ger· men ; there is no corolla : the fiyles are two : the feeds are compre!fed and bicornate; Of this genus there is only one known fpecies. C E R A T 0 C A R P U S. The root is fibrous ; the fialk is flender, erect, ramofe, and green : the leaves are long, narrow, and graff'y; they are of a pale green, and !harp-pointed: lhe male flowers grow three together, in the divarications of the branches ; the female flowe rs fiand fingly in the alre of the leaves, and are each fucceeded by a fmgle hard feed, fomewhat like that of the bidens. It is a native of Ruffia. Buxbaum calls it, Ceratoca~pus. ZANICHELLIA. T H E male flower confifi:s only of a fingle fiamen ; if has neither calyx nor co· rolla: in the female flower, the calyx is compofed of a fingle leaf; there is no corolla: the germina are about four, and the feeds are as many. This genus comprehends the Alyoides of Vaillant, the Aponogeton of Pontedera; and the Graminifelia of Dillenius. Zonichellia foliis longioribus. Tbe longer-leaved Zonichellia. T he root is compofed of a great clufier of whitiili, flender, long fibres: the plant grows to eight or ten inches high: the O:alk is round, fiender, jointed, and weak: the leaves fiand alternately, one at each joint; they are three or four inches long, very narrow, of a dufky green colour, and tender : to\Yard the tops of the ramifications they are iliorter and more numerous: the flowers are fmall and whitiili. It is an inhabitant of the freih water rivers and ditches in mofl: parts of Europe; . we have it in Lincolnfhire in many places. Dillenius calls it, Graminifolia; C. Bauhme, Potamogeiton capillaceum capitulis ad alas trifidis. There is but one other known fp ec.:ies of this genus, which is the {horter, graffy-leayed Zonichellia. C Y N 0 M 0 R I U M. I N the male flower, the calyx is an amen tum, of an imbricated form ; there is no corolla: in the female flower, the calyx is in the fame amentum with the male ; there is no corolla : the fiyle is fimple, and the feed · is fi.cgle and roundifh . 3 CYNOM~ |