444 f'XXII. EUrHORBIACEE (HUTCHINSON). 



Slini1)s ; disk in tho male flowers 

 iiiiiinliU-, entire or lol)(;<l ; seeds 

 exiillmmiiious or nearly so . . 18. Actei'IULA. 



D.iVuso herhs or small slend«r under- 

 sln-nbs ; disk in tlie male tlowers 

 eo'nsistinj:^ of sei>arate <:rl;ini)s; seeds 

 nsiudly with copions albnmen . 19. And1{ACHm:. 



ff I', tals al)r-,ent from the male llowers. 



Male flowers in globose beads snrrounded by 

 eitlyeine bracts ; females solitary and 



axillary 20. UArACA. 



Male flowers in spikes or racemes. 



Ovary 1 -celled ; fruits drnpaoeous . . 21. AXTlDEs:>rA. 



Ovary 2-3-celled ; fruits not drupaceous. 

 Fruits winged; disks absent from both 



sexes 22. Hymenocardia. 



Fruits not winged; disk present in both 

 sexes. 

 Stems annual, mostly simple, arising 



from a woody rbi/.ome . . .23. CYAxnOGYNE. 



Stems perennial ; much branched trees 

 or shrubs. 

 Ovary 2-cellcd, each cell divided by 

 a false septum between each 

 ovule ; styles 2, connate at the 

 base, undivided . . . 2-i. Marteetia. 



Ovary-cells not divided by false 

 septa ; styles bifid or bilobed. 

 IJracts subtending the male 

 flowers in 'A series, the middle 

 bract cupularand enclosing the 

 flowers in bud; disk of the 

 fenuile flowers adiiate to the 



sepals 25. Protomegabaria. 



Ih-act subtending the male flower 

 solitary; disk in the female 

 flowers not adnatc to the 

 sepals. 

 Fruits depressed-globose, tri- 

 lobed, 3-cclled, dehiscing 

 into 2-valved cocci . . 26. TiiECACORis. 

 Fruits entire, 1-celled by abor- 

 tion, not dehiscing into cocci 27. M.f.sobotrya. 

 ]Male flowers in axillary glomerules or fas- 

 cicles, rarely in short cymes, racemes of 

 fascicles or solitary. 

 Male flowers in short pedunculate cymes . 28. PsErDOLACii>o>TYLis. 

 Male flowers in axillary fascicles, glome- 

 rules, or solitary, rarely in racemes of 

 fascicles, 

 liudimentary ovary absent from the male 



flowers. . : 



l)i>k central; styles usually absent; ! 



stigmas thick and flat, mostly | 



cjuito entire; fruit indehiscent. 



