22 OKDEES OF LINNiEUS. 



2. A^'GiosPERMA. From angio, signifying bag or sack, 

 a . • , added to sPEK^nA, implying that the seeds 



Seeds numerous in a capsule. 5 J: J o 



are covered. 

 The orders of the 14:th class, Tetradynamia, are two, both 

 distinguished by the form of the fruit. 



1. kSiLicuLOSA ; fruit, a silicula^ or roundish pod. 



2. SiLiQUOsA ; fruit, a siliqua^ or long pod. 



The order's of the 15th class, Monadelj^hia, and of the 16th 

 class, Diadelphia, are founded on the miimber of stamens / that 

 IS, on the characters of the first twelve classes, and they have 

 the same names, as Monandria, &c. 



The ITth class, Syngcnesia, has its five orders distinguished 

 by difierent circumstances of the florets, as : 



1. Equal.is ; stamens and pistils equals or in proportion ; that 



is, each floret has a stamen^ a pistil, and one seed. Such 

 florets are called perfect. 



2. SuPEEFLUA ; florets of the disk perfect, of the ray contain- 



ing only 2nstils, which without stamens are superfluous. 



3. Feusteaxea ; florets of the disk> perfect, of the ray neutral, 



or without the stamen or pistil ; therefore frustrated, or 

 useless. 



4. Kecessakia ; florets of the disli staminate, of the ray pis- 

 tillate ; the latter being necessary to the perfection of the 



fruit. 



5. Segregata ; florets separated from each other hy partial 



calices, or each floret having a perianth. 



The orders of the 18th class, Gynandria, of the 19th class, 

 Monoecia, and the 20th class, Dioecia, depend on the number 

 of stamens. 



The orders of the 21st class, Cryptogamia, constitute six 

 natm-al families. 



1. FiLicEs, — includes all Ferns, having the fruit on the leaves. 



2. Musci, — Mosses. 



3. Hepaticae, — Liverworts, or succulent mosses. 



4. Algae, — Sea-weeds, and other aquatic vegetable produc- 



tions. 



5. Lichenes,: — Lichens, found growing on the bark of old 



trees, old wood, &c. 



6. Fungi, — Mushrooms, mold, blight, &c. 



Note. — No confusion is produced in taking the character of ^ome classes, for 

 orders in other classes ; for example : if Tve have a flower with ten stamens, united 

 hy their filaments into one set, we know by the definition of the classes th^t it be- 

 longs to the class Monadelphia ; because it has ten stamens, it is in the order De- 

 candria. 



Of Tetradynamia— Of the classes Monadelphia and Diadelphia— Of the class Syngenesia— Of the 

 classes Gynandria, Blonoecia, and Dicccia — Of the class Cryptogamia. 



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