GENERA OF CLASS XIII. POLYANDRIA. 85 



Such as have nine petals, Podophyllum (duck's foot, or May-ap- 

 ple). S. Ten petals, one genus, Bixa (anotta). 9. Many petals, 

 one genus, Nymfh;ea (water lily). 10. Without petals, seven ge- 

 nera, Viz. PROCKIA . . .MiERUA. . .Lu dia. . .Sloanea. . .Ryania. . .Le- 

 TiA...and Seguieria. 



Order 2. Dicynia, comprehends such plants as have two 

 styles. This order contains jive genera, viz. P^eonia (peony).., 



CURATELLA. . .FOTHERGILLA. . .TlUCHOCARPUS. . . LaCIS. 



Order 3. Trigynia, comprehends such plants as have three 

 styles. This order contains three genera, viz. Delphinium (lark- 

 spur) ...Aconit urn (w olf's-b ane)... and Homalium. 



Order 4. Tetragynia, comprehends such plants as have four 

 styles. This order contains five genera, viz. Tetracera...Caryo- 



CAR.,.ClMICIFUGA...WlNTERA...and WaHLBOMIA. 



Order 5. Pentagynia, comprehends such plants as have five 

 styles. This order contains four genera, viz* Aquilegia (co- 

 lw?ibine) ...Nigella (fennel flower) . . . and Reaumuria. 



Order 6. Polygynia, comprehends such plants as have many 

 styles. This order contains twenty-one genera, viz. Dillenia,.. 

 Liriodendhon (tulip tree) . . .Magnolia. . . M ichelia.. .Uvari a. . , 

 Annona (custard apple). ..Anemone. ..Atragene... Clematis (vir- 

 gins frott;erJ.,.THALiCTRUM (meadow rue),.. Adonis... Illicium 

 (aniseed tree) ...Ranunculus (crowfoot) .. .Trollivs (globe flower) 

 ...Isopyrum...Helleborus (hellebore) ...Calth a (marsh marygold) 

 ...Hydrastis (yellow root) . . . Unon a. . . Xy lo pi a . . . Nelum b i um. 



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