62 AN INTRODUCTION 



ingia, and Blacrta. 4. Those with rnonopetalous 

 flowers placed above a single fruit ; of which there 

 are nine, viz. Pavetta, Ixora, Petesia, Catesbuea, 

 Mitchella, Hedyotis, Oldenlandia, Manettia and 

 Sanguisorba. 5. Those with monopetalous flowers 

 placed below a double fruit ; of which there are 

 two, viz. Houstonia and Scabrita. 6. Those with 

 monopetalous flowers, above a double fruit, called in 

 Natural' Orders Stellatae; of which there are eight, 

 viz. Rubia, Galium, Asperula, Sherardia, Spermacoce, 

 Knoxia, Diodia and Crucianella. 7- Flowers mo- 

 nopetalous, below the fruit, which has four cells with 

 a single seed in each; of this there is one genus, 

 viz. Siphonanthus. 8. Those of flowers with four 

 petals, below ; of which there are eleven, viz. Epi- 

 mediurn, Monetia, Skimmia, Rhacoma, Othera, 

 Orixa, Ptelea, Samara, Curtisia, Fagara and Amman- 

 nia. 9. Those of flowers with four petals, above; 

 of which there are (five, viz. Trapa, Cissus, Cornus, 

 Ludwiuia and Santalum. lo. Flowers incomplete 

 (i. e. wanting either the calyx or corolla) below ; of 

 which there are ten, viz. Chloranthus, Struthiola, 

 Crameria, Rivina, Embothrium, Salvadora, Cam- 

 phorosma, Alchemilla, Dorstenia, and Cometes. 

 11. Flowers incomplete, above, of which there are 

 five, viz. Sirium, Acaena, Isnardia, Elaeagnus, and 

 Gonocarpus. 



ORDER II. DIGYXIA, comprehending such plants 

 as have two styles. This order contains eight ge- 

 nera, viz. Aphanes, Cruzita, Bufonia, Hamamelis, 

 Cuscuta, Hypecoum, Gomozia and Galopina. 



ORDER III. TETRAGYMA, comprehending such 

 plants as have four styles. This order contains seven 

 genera, viz. Ilex, Coldenia, Potamogeton, Ruppia, 

 Sagina, Tiilcra and Myginda. 



