u 



CARUMBIUM. 



* Petiole," hearmg a gland at summit on each side. 



Leaves rhomboid-ovate, entire ; capsules 3-4-coccous ; seeds enveloped in a white soapy 

 substance C. sebifevum. 



Leaves more or less elliptical or obovate, serrulate ; drupes usually 2- or 1-coocous, beriy- 

 like, sessile, C. insigne. 



* * Petioles gland-less. 



Leaves quite entire, more or less glauceseent beneath, C. baccatum, 



EXCOECARIA. 



* Male flowers pedicelled. Capsule large, woody. 



All parts glabrous ; leaves crenate-serrate, E. Indica. 



* * Male flowers sessile or nearly so. Capsule crustaceous, the valves opening elastically-' 



tiristing. 



X Leaves more or less repand-toothed or serrate. All parts glabrous. 



Leaves alternate ; capsules the size of a pea, , . .,E. Agalhcha. 



Leaves opposite ; capsules the size of a cherry, E. oppositifolia. 



X X Leaves quite entire, alternate. All parts glabrous, E. holophylla. 



EUPHORBlAi (J^'/es/zy trees or tuberous shrubs). 



X Flowers in dichotomous cymes or rarely solitary, above the scars of the fallen leaves 

 or supra-axillary. Floral leaves absent. 

 Unarmed. 



+ Flower-heads sessile or nearly so, solitary or rarely almost ternary. 



A tuberous simple-stemmed shrub, the stem terete, .E. sessiliflora. 



+ + Flower-heads in pcduncled dichotomous cymes. 



Branches flattened and winged-dilated, crenate-sinuate , E. epiphylloides. 



Armed with paired short stipulary thorns. 

 t t Styles 2-cleft. 

 Branches angular 3- occasionally 4- or 5-winged, the wings fleshy, sinuately re- 



pand, E. antiquorum. 



t t Styles simple, thickened at base. 



Branches more or less regularly 5-angular, the large protuberances placed serrately in 



sinuate repand longitudinal rows, E. neriifoUa. 



Branches terete, short, fleshy tubercled, E. Nivulia. 



X X Cymes sessile or nearly so, clustered, terminal or in the forks of the branch- 

 ichorls. Floral leaves none. 

 Branches terete, elongate ; leaves very small, linear E. Tirucalli. 



XXX Cymes several, terminal, furnished with bright-coloured {white or crimson) 

 floral leaves. 

 Unarmed ; leaves herbaceous, long-petioled, E. pulcherrima. 



URTICACE^. 

 Conspectus ofjjenera. 



Style 1 , simple. Ovule solitary, erect. Seeds albominons. Leaves Tarioua. 



O Perianth free, the female one nsnally 4-rarely 2-parted or -lobed. Often urent. Leaves decus- 

 sately opposite or spirally alternate. 

 LlPORTE*. Female perianth 4-parted or -lobed, dry after defloration. Stigma often filiform. Achene discoid 

 smooth. Urent perennials or shmbs, often growing out into trees. 



Female perianth free or more or loss adhering or adnate to the ovary, tubular, very short or 

 wholly wanting. Leaves opposite or alternate. Not urent. 



X Female perianth tubular, free or only adhering to the ovary, in fruit dry or membra- 

 nous, the mouth conspicuously 2-4-toothed. 

 BoEHUZRiA. Stigma iu fruit persistent, linear. Perianth in fruit neither winged nor ribbed. 



X X Female perianth free, variously toothed or lobed at the mouth, in fruit fleshy or 

 succulent. 

 Sarcochi,amy8. Fruiting perianth ventricose, laterally contracted at mouth. Stigma capitate, persistent in fruit. 

 Flowers spicate, the spikes simply branched. 



XXX Female perianth adnate to the ovary, the limb minute, toothed or almost entire. 

 OsEOCNiDE. Fruit dry, resting in a fleshy cup. Stigma almost peltate with long-fringod borders, persistent in 

 fruit. 



