358 THE BIOLOGY OF FLOWERING PLANTS 





Swollen 

 rcddrtk fcnd 

 of spadi'< 



- spafJie 



s^e^ile mala 

 ..flowers. 



.male flowers 



9l"«rif& Pema!e 

 riowers 



Lrernalc flowers 



Fig. 49. — Angrcecum sesquipedale, 

 single flower showing spur. 

 ^ nat. size. 



1V,1I1I|I|L^ 



Fig. 50. — Cuckoo-pint (Arum 

 maciilatiim) , part of the spathe 

 cut away to show the struc- 

 ture of the inflorescence. 

 (From Kirkwood, " Plant 

 and Flower Forms.") 



