392 
NATURAL HISTORY. 
Purslane, Hudsonia, Lytlirum, Willow Herb, Ginora, Decumaria, 
Befaria, Vatica, Apastis, Conella, Dodecas, Eurya, and Aristotelia. 
Ohder If. DIGYNIA, comprehending such plants as have two 
styles. Of this order there are two genera, viz. Heliocarpus, and 
Agrimonia, Agrimony. 
Order III. TllIGYNIA, comprehending such plants as have 
three styles. This order contains five genera, viz. Reseda, Bastard 
Rocket, Euphorbia, Burning Thorny Plant, or Spurge, Pallasia, 
Dacca, and Visnea. 
Order IV. FENTAGYNIA, comprehending such plants as 
have five styles. This order contains but one genus, viz. Glinus. 
Order V. DODECAGYNIA, comprehending such plants as 
have twelve styles. This order contains but one genus, viz. Sem- 
pervivum, Houseleek. 
Of the twelfth Class, Iccsandria.* 
This class consists of such plants as bear hermaphrodite flowers, 
of the following characters, viz. 1. A calyx monophyllous, and 
concave. 2. The corolla fastened by its claws to the inner side 
of the calyx. 3. The stamina twenty or more. As the number of 
stamina in this class, notwithstanding its title, is not limited, an 
attention must be had to the two first characters, to distinguish the 
flowers from those of the next class, with which they might other- 
wise be confounded. The orders are five, viz. 
Order I, MONOGYNIA, comprehending such plants as have 
but one style. This order contains eleven genera, viz. Cactus, Melon, 
Thistle, Eugenia, Philadelphus, Mock Orange, Psidium, Guayava, 
or Bay Plum, Myrtus, Myrtle, Punica, Pomegranate, Amygdalus, 
Amygdalus, Prunus, Plum Tree, Plinia, Chrysobalanus Cocoa 
Plum, and Sonneratia. 
Order II. DIGYNIA, comprehending such plants as have two 
styles. Of this order there is but one genus, viz. Cratsegue, Wild 
Service. 
Order III. TRIGYNIA, comprehending such plants as have 
three styles. Tins order contains two genera, viz. Sorbus, Service 
Tree, and Sosuvium. 
Order IV. PENTAGYNIA, comprehending such plants as 
have five styles. This order contains six genera, viz. Mespilus, 
Medlar, Pyrus, Pear, Tetragonia, Mesembryanthemum, Fig Mary- 
gold, Aizoon, and Spiraea. 
Order V. POLYGYNIA, comprehending such plants as 
have many styles. This order contains nine genera, viz. Rosa, 
Rose, Robus, Raspberry, Fragaria, Strawberry, Potentilla, Cinque- 
foil, Tormentilla, Tormentil, Geum, Avens, or Herb Bennet, Dry as, 
Comorum, Marsh Cinquefoil, and Calycanthus, Virginian All- 
spice. 
* This class furnishes the fruits most in esteem. 
