ON THE CLASSIFICATION OF PLANT'S. Q

T °ot and pistils on the other. The Yew-tree is an instance of this, andw 'll be found to possess the best flowers to illustrate this class.

Class XXIII.-POLYGAMIA.

The twenty-third class contains plants having some flowers with

stamens alone, others with pistils alone, and some complete, i, e. with

'tamens, pistils, and other parts perfect, either on one or more roots,

as will be seen in the explanation of the Orders. Example— Atripltlt,

Orach.

Ciass XXIV.—CRYPTOGAMS.

This class comprises plants whose parts °f fructification in s-nciarare very minute and difficult to delineate or d*«Wtss, and from whichcircumstance they are call*-' *«P«tf«« P h '^i and as " ie ?<=nera in

it are vp-j _____rerttie, it almost forms a series of botany distinct from

the perfect plants.

The Ferns: as Polypodium, Polypody. The Mosses : as Sphagtium,Bog Moss. Fungi: as jVgaricus, Mushroom. Fuel: as Funis, Laverend Sea-Wrack, are of this class.

It may not be amiss in this place to caution the reader against con-sulting flowers which are double, as these will not afford him the op-portunity of observing the parts of fructification, and arc only to beconsidered as vegetable monsters formed by luxuriance; in whichCases the petals are multiplied in number, by the stamens and pistilsPutting on the shape of the corolla.

He may also take into consideration three other parts present in theflower not mentioned before: i. e. the Receptacle, or base bearing theCalyx ; the Pericarp, or seed-vessel; and the Seeds. These are consi-dered as forming part of the fruit, and will be of consequence here-of in the discussing of the following subdivisions; at present it ison ly to be noticed that such exist.

ON THE ORDERS,

OR SECOND SUBDIVISION IN THE LINNJEAN SYSTEM OFBOTANY.

"rorn the foregoing pages we learn that the Classes are formed ge-nerally on the number and situation of the Stamens; and in a similarma nner are the Orders also formed from the Pistils.