SCIENCE OF BOTANY. 
S83 
twenty-second classes, and are to be understood in the same man- 
ner: that is, 1. Monoecia, when the polygamy is on the same 
plant: and, 2. Dioecia, when it is on distinct plants. The order 
Trioecia has been established in favour of a single genus, the Ficus ; 
in which the polygamy is on three distinct plants, one’ producing 
male flowers, another female, and a third hermaphrodite, or 
androgynous. 
CLASS XXIV. CRY Fl’O GAM I A . — The orders of this class 
are, 1. Filices, Ferns, 2. Mhsci, Mosses, 3. Algte, Flags ; and 4. 
Fungi, Mushrooms. The explanation of which will follow, when 
we treat of the genera. 
The Genera of the Plants arranged according to the 
Classes and Orders. 
Of the 1st CLASS, MONANDRIA. — This class consists of such 
plants as bear hermaphrodite flowers, furnished with but one 
Stamen. Tire orders are two, viz. 
Order I. MONOGYNIA, comprehending such plants as have 
but one style. This order contains fourteen genera, distinguished 
into, 1. Tri locular, such as have the pericurpium divided into three 
Loculaments : of which there are eleven, viz. Canna, Indian flower- 
ing-reed, Ammomum, Ginger, Costus, Alpinia, Maranta, Indian 
arrow-root. Curcuma, Turmeric, Kaunpferia, Thalia, Myrosma, 
Phyllacline, and Renealmia. 2. Monospermous, such as have a 
single seed, of which there are three, viz. Boerhaavio, American 
hog-weed, Salicornia, Jointed glass- wort, and Hippuris. 
Order II. DYGINIA, comprehending such plants as have two 
styles. This order contains five genera, viz, Corispermum, Tick- 
seed, Cailitriche, Star-headed water chick-weed, Blitum, Straw- 
berry Spinach or Blite, China, and Miuiarum. 
Of the 3rd CLASS, DIAN13RIA. — This class consists of such 
plants as bear hermaphrodite flowers, furnished with two Stamina. 
The orders arc three, viz. 
Order I. MONOGYNIA, comprehending such plants as have 
but one style. This order contains thirty-one genera, distinguished 
into, 1 . Such as have regular coralhc, of which there are eleven, viz. 
Nyctanthes, Arabian Jasmin, Jasminum, Jasmin, Ligustrum, Privet, 
Phillyrea, Mock privet, Olea, Olive, Cliionanthus, Snow-drop tree, 
or Fringe tree, Syringa, Lilach, Dialura, Eranthemum, Circaea] 
Enchanters night-shade, and Wulfenia. 2. Such as have irregular 
corollse, and the fruit Angiospermous;* of which there are ten, viz. 
Veronica. Speedwell, Psederota, Justicia, Malabar nut, Dianthcra, 
Gratiola, Hedge hyssop, Schwenkia, Pinguieula, Butter-wort, 
Utrieularia, Watennilfoil, Calceolaria, and Globba. 3. Such as 
* The seeds in a vessel. See the table explanatory of botanical terms, 
at the end of this class. 
