of the germen or style. Such is the 

 case decidedly in all the natural 

 family of OrchidecB, or Orchis tribe, 

 as well as in Forestera and Stylidium. 

 On these the class remains very 

 firmly established." See Rces's Cy- 

 clopedia. 



21. Moncecia The stamens and pistils are in separate 



flowers, but on the same plant ; as 

 in the Cucumber, Gourd, Palma- 

 Christi, Arbor Vita, Red Mulberry, 

 Box tree, Indian Corn or Zea, Oak, 

 Walnut, Pine, Amaranth, SfC. 



22. Dicecia The stamens and pistils in separate 



flowers, and on separate plants ; as 

 in the Hop, Willow, Spinage, Hemp, 

 Juniper, Red Cedar, Yew, Poplar, 

 (Lombardy, and other Poplars,) Mis- 

 tletoe, &c. 



23. Polygamia The stamens variously situated ; the 



stamens and pistils being sometimes 

 found in the same flower ; sometimes, 

 flowers with stamens only; others, 

 with pistils only, and these are placed 

 either on the same plant, or on two 

 or three different ones. Such a 

 diversity is very prevalent among 

 the trees of tropical climates, which 

 are, most of them, more or less poly- 

 gamous, as is the case also with many 

 grasses. Yet such a character, being 

 not always permanent, leads to much 

 difficulty in practice. 



In this class are to be found the 

 Ash-tree, Fig, Maple, Mimosa pudica, 

 Acacia of Arabia, &c. 



The writer of the article under 

 the head Polygamia, for Rees's Cy- 

 clopedia, suggests a limitation of this 

 class to those Genera which have a 

 difference of structure in the acces- 

 sory parts of their flowers, (the calyx, 

 corolla, &c.) independent of the 

 stamens and pistils ; flowers so con- 

 structed being permanently distinct ; 



and asserts, that " if the class can- 

 not be supported on this foundation, 

 it must fall to the ground." Some 

 botanists have hastily abolished the 

 class altogether. 



24. Cryptogamia The flowers of this class invisible to 

 the naked eye. It includes Ferns, 

 Mushrooms, Mosses, Sea-weed, Li- 

 chens, or Liverwort, c. 



ORDERS OF THE FOREGOING CLASSES. 



The names of the first thirteen orders are formed from 

 the Greek numerals, but with the addition of the word 

 gynia, instead ofandria. The first thirteen distinguished 

 entirely by the number of pistils. The styles to be count- 

 ed from their base. When the styles are wanting, the 

 number of stigmas determine the order. 



NAMES OF THE FIRST THIRTEEN ORDERS : 



Monogynia 1 Pistil. Heptagynia 7 Pistils. 



Digynia 2 Pistils. Octagynia 8 Pistils. 



Trigynia 3 Pistils. Enneagynia 9 Pistils. 



Tetragynia 4 Pistils. Decagynia 10 Pistils. 



Pentagynia 5 Pistils. Dodecagynia 12 Pistils. 



Hexagynia 6 Pistils. Poly gynia Many Pistils. 



The 14th Class has 2 Orders Gymnospermia, seeds 

 naked at the bottom of the calyx ; as in Laven- 

 der, Mint, &c. And Angiospermia, where the 

 seeds are enclosed in a seed vessel ; as in the Fox 

 Glove. None of the Genera of the 14th or 15th 

 Classes have more than one style. The characters 

 of the Orders are, therefore, taken from the peri- 

 carp. 



15th Class has 2 Orders ; distinguished by the form of 

 the pericarp, or seed vessel ; as Siliquosa, long 

 pods, as the Wall flower, &c. ; and Siliculosa, 

 short pods ; as Honesty, or Satin Flower. 



The 16, 17, 18th Classes In these the Orders are deno- 

 minated from the number of their stamens. 



19th Class has 5 Orders distinguished by the epithet 

 Polygamia. Intimating, that the flowers are 

 compound, and consist of numerous florets, or 

 small flowers, seated on a common receptacle. 



