600 



BOTANY. 



The sixth order, HEXAOYNIA, contains a sing! 

 genus, viz. Cephahtus, but that a very curious one 

 its leaves being formed into elegant pitchers, fur 

 nished with lids, like those of the Nepenthet. 



DodecJtrynia. 



The seventh and last order, DODECAGYNIA, con 

 tains only two nearly allied genera, viz., the semper 

 vivum or house-leek, and the monanthus, a succulent 

 plant, from the Canary Islands, bearing but one flower 

 at a time. 



The twelfth class, ICOSANDRIA, contains all such 

 plants as have twenty or more stamens seatec 

 upon the corolla or calyx. It is divided into 

 three orders, comprising sixty genera, and one 

 thousand two hundred and ten species. This is one o: 

 the most important classes of the Linnaean system, as 

 containing many of our most useful fruits, as well as 

 most esteemed flowers. In the first order, MONOGY- 

 NIA, we have the gorgeous Cacti, Cercus, Epiphyllum, 

 and Opuntias; the myrtle, Euqeni and Eucalytus ; 



Icosandria. 



Monogynia. 



of fruits we have the guava, pomegranate, and seve- 

 ral of our best wall-fruit. 



In the second order, DI-PENTAGYNIA, that is, 

 plants having from two to five pistils, we have the 

 pear, apple, quince, &c. ; likewise the extensive 

 genus Mesembryanthemum, of which there are three 

 hundred and thirteen species, besides numerous 

 varieties described by the late lamented Mr. 

 Haworth. 



In the third order, POLYGYNIA, we have the unri- 

 valled rose, the exquisite strawberry, raspberry, and 

 many others of great worth and beauty. 



Polygynia. Di-Pentagynia. 



The thirteenth class is POLYANDRIA ; that is, all 

 plants having an unlimited number of stamens distinct 

 from each other, and seated on the receptacle. This 

 class contains one hundred and seven genera, and 

 nine hundred and fifty-six species. 



The first order, MONOGYNIA, comprises, among 

 many others, the caper-tree, the well-known poppy, 

 the curious samicenia, and the magnificent water- 

 lily. 



Polyandria. 



Di-Trigynia. Monogynia. 



The second order, DIGYNIA, is well typified in the 

 splendid peony, a genus which has been lately much 

 increased by new varieties received from China and 

 Siberia. 



The third order, TRIGYNIA, contains the beautiful 

 larkspurs, the dangerous aconite, and the inodorous 

 Hibbertia. 



The fourth order, TETRAGYNIA, contains only two 

 genera ; the butter nut, a tropical fruit ; and the 

 Drimys winteri, a tree alied to the magnolia. 



Polygynia. 



Pentagynia. 



The fifth order. PENTAGYNIA, contains ten genera, 

 of which the well-known columbine may be taken as 

 a type. 



The sixth order, POLYGYNIA, contains a great many 

 fine flowering plants, both shrubs and herbs ; among 

 the former, the magnolia is most conspicuous ; 

 among the latter, the anemone and ranunculus are 

 confessedly beautiful. Of early, or winter flowering 

 plants, the aconite and hellebore are examples, and 

 the globe-flower and marsh-marigold are showy 

 plant. 



The fourteenth class is called DIDYNAMIA, because 

 of four stamens two are superior, and contains two 

 orders, one hundred and seventy genera, and one 

 thousand four hundred species. The flowers are 

 enerally ringent. 



In the first order, GYMNOSPERMA, the calyx is 

 jersisting, and becomes the seed-vessel, in which the 

 seeds lie naked. In this order we find the ger- 

 mander, lavender, mint, and dead-nettle, and many 

 others of similar character : several of them are use- 

 'ul in cookery. 



Didynamia. 



Angiospermia. Gymnosperma. 



The second order, ANGIOSPERMA, so called be- 

 ause, though the stamens are the same in number 



