420 



XXXVII. OLACINE^. 



[Olax. 



i. Olacace^. Trees or shrubs; flowers small usually white; stamens 

 twice as many, or as many as petals and opposite them; ovary 2- to 5-celled, 

 at last I -celled at tip. 



Ovary superior. 



Stamens 3 to 5 free ..... 



Stamens 4 in a tube; calyx in fruit forming a 



large coloured disc ..... 

 Tree; stamens 12 to 15; flowers in a long 



raceme ; fruit a simple drupe 

 Trees; stamens 10; fruit capsular; leaves 



opposite ....... 



Spiny shrub; stamens 8 to 10 free; fruit a 



drupe ; leaves alternate .... 

 Big tree; stamens 10 attached to petals; fruit 



a drupe ....... 



Stamens 6 in concavities of petals . 

 Ovary inferior or partly inferior ; stamens 5 



1. Olax 



2. Harmandia 



3. Ochanostachys 



4. Ctenolophon 



5. Ximenia 



6. Scorodocarpus 



7. Anacolosa 



8. Strombosia 



ii. IcAciNE^. Trees or shrubs; flowers white or green, unisexual or 

 bisexual ; stamens as many as petals and alternate with them ; ovary rarely 

 2-celled ; fruit a drupe. 



Ovary and fruit i -celled. 



Tree unisexual ; sepals 5 distinct ; flowers in 



short spikes . . . . . .9. Plate A 



Shrubs unisexual ; calyx cup-shaped 4-toothed ; 



flowers cymose . . . . . .10. Gomphandra 



Trees low ; flowers bisexual rather large . .11. Stemonurus 



Ovary and fruit 2-celled ; shrub ; flowers bisexual ; 



racemose corolla gamopetalous . . .12. Gonocaryum 



iii. PHYTOCRENE.E. Climbing shrubs, unisexual or bisexual 4- to 5-merous, 

 parts imbricate ; ovary i -celled; ovules 2. 

 Monochlamydeous . 



Flowers 4-merous large lianes ; flowers in 



racemed heads ; fruit, head very large, bristly 



Flowers 5-merous slender climber; fruit not 



bristly ....... 



Dichlamydeous. 



Flowers unisexual ; cymose panicled ; fruit a 

 drupe ....... 



Flowers unisexual in long cymes; fruit linear- 

 oblong ....... 



Flowers bisexual ; ovary half immersed in disc ; 

 fruit pericarp splitting in 4 valves red ; seed 

 dark blue ....... 



Doubtful plant ....... 



13. Phytocrene 



14. MlQUELIA 



15. lODES. 



16. LOPHOPYXIS 



17- 

 18. 



Erythropalum 

 Cantleya 



1. OLAX, Linn. 



Shrubs or trees sometimes scandent and thorny. Leaves altern- 

 ate. Racemes axillary simple or branched, short. Calyx minute 

 cup-shaped truncate accrescent. Petals 4 to 5 hypogynous valvate 

 connate. Fertile stamens 3 opposite the petal-edges attached to 

 base. Staminodes 5 or 6 opposite petals. Ovary free, usually 

 surrounded by a cup-shaped disc, i-celled above, 3-celled below; 

 ovules 3 linear; style simple; stigma 3-lobed. Drupe half 



