SO GENERA OF CLASS X. DECANDRIA. 



Order 2. Digynia, comprehending such plants as have tw& 

 styles. Of this order there are twelve genera, viz. Royena... 

 Hydrangea... Cunoni a... Chrysosplenium (golden saxifrage).,* 



SaXIFRAGA... TlARELLA... MlTELLA. . . ScLERANTHUS (knawell) . . . 



TrianthEma...Saponaria (soapwort) ... Dianthus (pink) ...and 

 Silene (catch-fly). 



Order 3. Trigynia, comprehending such plants as have three 

 styles. Of this order there are thirteen genera, viz. Cucubalus 

 {campion) . . . Stellari a ( stickwort ) .... Arenari a (sandwort ) ... 

 Cherleria. . . Garidella . . .Malpighia. . . Banisteria. . .Triopteris 

 ... Erythroxylon... Hirjea... Deutzia... Brunnichia... Gypso- 

 phila. 



Order 4. Pentagynia, comprehending such plants as have 

 jive styles. Of this order there are sixteen genera, viz. Aver- 

 rhoa....Spondias (hog-plum),.. Cotyledon (navehvort) ...Sedum 

 (stonecrop) . . . Penthorum„ . . Oxalis (sorrel ) . . . Suri an a . . . Ly chnis 

 ...Agrostemma (campion cockle) ...Cerastium (mouse-ear chick- 

 iveed)... Spergula (spurrey) ... Grielum... Bergia ... Cnestis ... 

 Jonquetia ...Robergia. 



Order 5. Decagynia, comprehending such plants as have 

 ten styles. This order contains only two genera, viz. Neurada 

 ...and Phytolacca. 



