nvo I'lilXCIPLES INVOLVKI) ]]? 



f With ;m (Midosiiig involucre, at least hcforc maturity (/). 



( Without an enclosintj iiixolucre [d].* 



\ AVrticall\- (JixisiMc in onc-sccdcd j)arts (/). 



I A one-set'ded ]);irt resulting from such division (j). 



I Transversely divisible into one-seeded joints (n). 



Not divisible into one-seeded ])arts nor the produet of such 

 I di\-ision (/,•). ^ 

 Not transversely dehiscent (/). 

 Transversely dehiscent (f/). 

 Monocarpellary (?»)• 



Dicarpellary, the valves sei)arating from the placentae (o). 

 I Not monocarpellary nor dicarpellary, with valves separating 

 [ from placentae {y). 



r Soft throughout Berrv. 



•j' With a soft, tough rind Hesperidium. 



I With a hardened rind Pepo. 



^ Putamen of bony hardness; solitary Drupe. 



Putamen of bony hardness; one of several which are 



coherent Pvrene. 



Putamen of bony hardness; one of many which are 



non-coherent Drupelet. 



Putamen thin and tough Pome. 



Schizocarp 



(If dicarjx'llary, with a cari)ophore .... Cremocarp). 



Part of a cremocar]j ]\Iericarp. 



Not part of a cremocarp . . . .Coccus, Xucula, or Nutlet. 

 Dehiscent, the vahes separating from the two 



placentae :\Iost Silicles. 



With thin, winged pericarp Samara. 



With inflated pericarp Utricle. 



Pericarp, thickish in view of its size, not inflated, 



sometimes winged Akene. 



r A non-glumaceous involucre, with contents (dans. 



I A one-seeded fruit from a glans Kut. 



I A glumaeeous involucre with contents . . . A few Spikelet.s. 



I A one-seeded fruit from a spikel(>t Caryopsis. 



f Dehiscing by one suture only Follicle. 



I Dehiscing by both ventral and dorsal sutures . . Legume. 

 I (When spirally coiled ("ochlea). 



Exceptions occur. 



