IV. MUSACE^J. 



763 



Heliconia metallica. 

 Transverse section of base of flower. 



Heliconia metallica. 

 Abortive stamen. 



Heliconia Bihai. Entire plant. 



Heliconia formota. 

 Lower portion of the Heliconia formosa. 

 flower cut vertically. Ovule (mag.). 



Urania gvianensis. 

 Seed, with hairy aril (mag.). 



Heliconia metallica. Flowers. 



Urania guianensis. 



Seed, with hairy aril, cut 



vertically (mag.). 



