3 



Ti-ibe III. MiTRlPHOREi. Petals valvate in biul, 

 outer spreading ; inner dissimilar, concave, con- 

 nivent, arching over the stamens and pistils, 

 (divergent in some Mitrephoras). Stamens many, 

 (few in G'/ophea), closely packed ; anther-cells 

 (except in Orophea) concealed by the overlapping 

 connectives. Pistils numerous (few in some Oro- 

 pheas). 



Inner petals clawed. 



Inner petals connivent in a cone, but 



not vaulted ... ... 14. Goniothalamus. 



Inner petals vaulted. 



Stamens about 6, Miliusoid ; inner 



petals longer than the outer ... 15. Orophea. 

 Stamens numerous, Uvainoid ; inner 

 petals not longer or very little 

 longer than the outer ... 16. Mitrephora. 



Inner petals not clawed. 



Flowers globose ; p>etals subequal .., 17. Popoieia. 

 Flowers elongate ; inner petals much 



shorter than the outer ... ... 18. Oxymitra. 



Tribe lY. Xtlopiej:. Petals valvate in bud, thick 

 and rioid, connivent ; the inner similar but smaller, 

 rarely 0. 



Outer petals broad ; torus convex ... 19. Melodorum. 



Outer petals narrow, often triquetrous ; 



torus flat or concave ... ... 20. "Kylopia. 



Tribe V. Miliuses. Petals valvate in bud, the 

 outer sometimes very small like the sepals. Sta- 

 mens often definite, loosely imbricate ; anther- 

 cells (e.Kcept in Phceanthiis) not concealed by 

 the connectives. Ovaries solitary or indefinite. 

 Ovaries indefinite. 



Sepals and outer petals similar and minute ; 

 inner petals very large, often cohering by 

 their edges. 



Ovules 1 or 2 : stamens numerous, 

 quadrate, with broad truncate 

 apical processes concealing the 

 anther-cells from above ... 21. Phteanthus. 



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