TAXONOMY 



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to irregular pentamerous (Pelargonium)', sepals five, aposepalous; 

 petals five, apopetalous, varying in color from greenish-white or 

 pink-red to scarlet, scarlet-crimson to crimson-purple; stamens with 

 anthers ten or five, hypogynous or inserted into slightly developed 

 hypogynous disc; pistil pentacarpellary, ovary five-celled with two, 



FIG. 202. Physostigma venenosum Portion of plant and fruit. (Sayre.) 



rarely one ovule in each cell, styles elongate, fused round a stylar 

 column of receptacle then continued as a stylar tip which splits into 

 five stigmatic surfaces. Fruit a regma rarely a simple capsule. 

 Regma splits into five recurved carpels, each then dehiscing to set 

 free two or one seeds. Seeds exalbuminous. 



