142 AN INTRODUCTION 
ra, Carex, Axyris, Tragia, Hernandia, and 
Piyllanthus. 
Oxpver IV. TETRANDRIA, compre- 
hending fuch Plants as have their male 
Flowers furnifhed with four Stamina. This 
Order contains nine Genera, viz. Centella, 
Betula, Buxus, Urtica, Morus, Cicca, Serpi- 
cula, Littorella, and Aucuda. 
Orpvere V. PENT ANDREIA, compre- 
hending fuch Flants as have the male 
Flowers furnifhed with fve Stamina. This 
Order contains eight Genera, viz. Xan- 
thium, <Ambrofia, Parthenium, Iva, Leea, 
Amaranthus, Nephelium, and Clibadium. 
Orpver VI. HEXANDRIA, compre- 
hending fuch Plants as have their ma/e Flow- 
ers furnifhed with f/x Stamina, Of this Or- 
der there are ¢wo Genera, viz. Zzzania, and 
Pharus. 
OrpveER VII. HEPTANDRIA, compre- 
hending fuch Plants as have their male Flow- 
ers furnifhed with /even Stamina. Of this 
order there is but one Genus, viz, Guettarda. 
Orver VIII. POLY ANDRIA, compre- 
hending fuch Plants as have their male Flow- 
ers furnifhed with many Stamina. This Or- 
er contains thirteen Genera, viz. Ceratophy/- 
lum, Myriophyllum, Sagittaria, Begonia, The- 
ligonum, Poteriuim, Quercus, Suglans, Fagus, 
Car- 
