114 



KEY AND FLORA 



(c) Carpels 5-15 (usually 10), 1 -seeded. Filipendula, X 



((/) Akeiies 2-6, styles not lengthening after flowering. 



Waldsteinia, YIII 

 (e) Akenes many, on a dry recej^tacle. Styles not length- 

 ening. Potentilla, IX 

 (/) Akenes many, on a dry receptacle. Styles lengthening 

 after flowering, forming tails to the akenes. 



Geum., XI 

 2. Fruit fleshy. 



(rt) Akenes several-many, becoming little drupes. 



Rubus, XII 



(/>) Akenes many, dry on ripening, on a fleshy, eatable 



receptacle. Fragaria, YII 



(c) Pistil solitary, becoming a drupe Prunus, XIY 



ABC 



Fig. 19. Pistils in the Rose Family 

 A, Prunus-tji>e; B, Potentilla-type ; C, Rosa-tji^e. c, calyx; o, ovary 



B 



Eipe carpels inclosed icitUn the calyx tube. 



1. Fruit a pome. 



(«) Carpels more than 2-seeded ; seeds covered with a muci- 

 laginous pulp. Fruit 5-celled. Cydonia, III 



(h) Carpels 2-seeded (except in some cultivated varieties); 

 seeds without pulp. Fruit 5-celled. Pyrus, lY 



(c) Carpels 2-SQeded ; fruit 10-celled. Amelanchier, Y 



