TABLE OP CLASSIFICATION. 



179 



4. TETRANDRIA. 



The plants ia 

 this class are dis- ^^m 

 tingTiiahed from so^v 

 those in Didyiuu *^% 

 mia by tlieir four stamens 

 being- of equal lenfftha, and 

 by their flowers being- of 

 distinctly different natu- 

 ral orders. 



5. PENTANDRIA. 



Plants of five , . (. 

 stamens uot unit- ,^j|^ 

 ed. This class Je^^^^7 

 distinguished ^' 



from Syngenesia by its 

 flowers being- simple, while 

 those of Syng-eupsia are 

 compound. 



6. HEXANDRIA. 



In this class the 

 flowers have six 

 stamens all nearly 

 of the same 

 lengtli, aud one to four 

 pistils; but none of the 



genera have four petals 

 ke those we find in Te- 

 trad ynamia. 



7. HEPTANDRIA. 



Plants of seven 

 stamens. There 

 Ls only one Bri- 

 tish g-enus in this * 

 class. 



8. OCTANDRIA. 



The British 

 plants of this 

 class have eight 

 ^amens, and 

 one, three, or 

 four pistils. Some of the 

 Ericas are much admired 

 for their beauty, and the 

 Daphne is an active altex- 

 ative medicine. 



9. ENNEANDRIA. 



Plants of nine 

 stamens. This , 

 class contains on- 

 ly one British in- 

 digenous plant. 



10. DECANDRIA. 



The British 



Slants in tliis class ■ 

 are ten stamens. ; 

 and one, two, 

 three, or five pistils. 



U. DODECANDRIA. 



PlaTits from ele- , 

 Ten to nineteen^, 

 stamens, and one,-^ 

 two, three, 

 twelve pistils. 



1 Monogynia 



2 Digyuia 



.3 Trigynia 



1 Monogynia 



S Digynht 



3 Trigynia 



4 Tetragynlii 



5 Pentagynia 



6 HexagjTiia 



.7 Polygynia 



1 Monogynia 



2 Digynia 



3 Trigynia 

 _4 Polygynia 



1 Monogynia 



1 Monogynia 



2 Trigynia "^ 



3 Tetragynia '^ 



1 Hexagynia ^p 



"1 Monogynia ^^ 



2 Digynia ^ 



3 Trigynia v| 



4 Pentagynia «^ 



^ 1 Monogynia ^ 



2 Digynia '^ 



3 Trigyma ^ 

 1-4 Dodecagyuit' ^ 



12. ICOSANDRIA. 



This class con- 

 sists of herma- 

 plirodite plants, 

 with twenty or 

 more stamens fix- 

 ed in the calyx. They , 

 produce our most esteem- 

 ed fruits; and no poison- 

 ous fruit has yet been 

 found where the parts of 

 the flower correspond 

 ^^'ith the characters oi this 

 class. 



1 Monogynia 



2 Pentagynia 



3 Polygynia 



1 MoaogjTiIa 



2 Pentagynia 



Gymnospermia 



13. POLYANDRIA. 



The plants be- 

 longing to tliis ^ 

 class are herma- 

 plirodite, and 

 have twenty or 

 more stamens fixed in the " 

 receptacle. The sitnation 

 or insertion of the stamens 

 constitutes the essential 3 Polygynia 

 and characteristic distinc- ^ 

 tion between the twelfth 

 and tliirteenth classes. 



14. DIDYNAMIA. 



This class con- 

 sists of plants "^ 

 with four sta- /^ ' 

 menSjtwolonger 

 than the other ' / ^ ' 



two, and one pistil. Tlie I 

 orders are formed upon -l 

 the presence or absence of I 

 a covering to the seeds. ^ 2 Aiigiospenpa 

 The floAvers in the first 

 order are all ringent; in 

 the second order they are 

 most frequently person- 

 ate, or resupinate. 



15. TETRADYNAMIA. 



Plants of six 

 stamens, four ' 

 long and two 

 short, and one ( 

 pistil, ^vliich 

 turns into 

 two-valved pericarp, call- | 

 edaSiliqua; someofthesej 

 pericarps are long, and re- 1 

 tain the name sUiqua; 1 

 others are short, round, or 

 flat, and receive the name 

 of siEcle, and upon this 

 distinction of their seed- 

 pods the orders are form- 

 ed. 



1 Siliculosa 



2 Siliquosa 



tl 



16. MONADELFHIA. 



The plants in ^(* 

 this class have the (1^^ 

 filaments of their ^5^' 

 fitamensunitedin- ^^^ 

 to one set. 



2 Decandria 

 ■"3 Polyandria 



17. DIADELPHIA. 



The plants in 

 this class have /m 



theirstamensin ^Sl^^^ 

 two sets, of ^^**^ 

 which the first 

 genus m an excellent ex- 

 ample; but there are five • 

 of ttie genera strictly Mo- 

 nadelphous in the union 

 of their stamens, and the 

 other generahave one sta- 

 men separate from the 

 rest on the upper surface 

 of the pistil. 



18. POLYADELPHIA. 



The plants of 

 this class are 

 hermaphrodite, 

 and their sta- ^^^ 

 mens areunited into three I 

 or more sets. There 19 

 but one British genus. 



1 Hexandfia 



2 Octandria 



1 Polyandria 



