ecu. EUPHOEBIACE^. 695 



Tribe VIII. EIPPOMANEM. 



Ovarian cells 1-ovuled. Stamens sometimes inserted around a central disk. 

 Anthers erect in bud. Flowers in tlie axils of the bracts, or involucrate. Involucres 

 1-sexual. Calyx of $ quincuncial in sestivation. 



* Flowers exinvolucrate, iracts never connate. 



f Flower ivith petals, or with the glands of the extrastaminal dish opposite the sepals. 



Sub-tribe I. Bennettiej:. — Petals induplicatively imbricate. Stamens inserted around a 

 rudimentary ovary. Bennettia. 



Sub-tribe II. PoGONOPHOEEiE. — Stamens inserted around a rudimentary ovary. Stamens 

 equalling the sepals, or if m.ore the outer opposite the sepals. Pogonophora, Microdesmis. 



Sub-tribe III. Acidoceotone^. — Stamens central, rarely surrounding the rudiment of 

 an ovary. Outer stamens alternating with the petals. Acidocroton. 



Sub-tribe IV. Clitytie^. — Stamens inserted around a rudimentary ovary, alternate with 

 the sepals. Petals perigynons. Oluytia. 



Sub-tribe V. MANiHOTEai. — Stamens inserted around a central disk. *Manihot. 



Sub-tribe VI. Jatbophej). — Stamens inserted aroiind a central receptacle or a rudi- 

 mentary ovary, equalling the sepals in number, or the outer alternating with them. *Jatropha, 

 Trigonostemon, Ostodes, Oodioeum, &c. 



Sub-tribe VII. OnaiTOCAEPEJ!. Stamens inserted around a rudimentary ovary, outer 

 alternating with the sepals. Petals suppressed. Ohcetocarpus. 



t f Flowers absolutely apetalous. DisJc glands if extrastaminal and isomerous never opposite 



the sepals. 



Sub-tribe VIII. CnElLOSEiE. — Stamens inserted around a rudimentary ovary, outer 

 alternating with the sepals. Gheilosa, Ounuria. 



Sub-tribe IX. Mischodonteji. Stamiis inserted around a rudimentary ovary, opposite 

 the sepals. Disk suppressed. Mischodon. 



Sub-tribe X. Geloniej!. — Stamens central, or surrounding a rudimentary ovary, as 

 many as the sepals, or the outer series opposite the sepals. Baliospermum, Gelonium, Om- 

 pJiolia, &o. 



Sub-tribe XL AdenocUneoe. — Flower not compressed. Stamens inserted around a 

 Conical glandular receptacle. Adenocline, &c. 



Sub-tribe XII. Stomatocaltcej:. — Flower compressed. Stamens inserted around a 

 central area. Stomatocalyx. 



Sub-tribe XIII. Caeumbie^. — Flower compressed. Stamens central. Wartmannia, 

 OarwrribiiJ/m. 



Sub-tribe XIV. Btjhippomanej:. — Flower not compressed. Stamens central, equalling 

 the sepals in number, or the outer alternating with the sepals. Mabea, *StilUngia, Sehastiania, 

 Sippoman'e, -Exocecaria, Oolliguaya, &c. 



