2a, JUUPEORBIACE.E. 



[ 1. EUPHOBBIA. 



22. Homonoia. 



23. Ricinus. 



24. Gelonium. 



25. Tragia. 



26. Sapium. 



L. narrow. Fls. spicate. Shrub .... 



L. very broad palmi-nerved. Fls. panicled. Oastor- 

 oii plant ... . . 



3. L. alt. pellucid punctate. Fls. in axillary- 



contracted cymes or clusters, or sub- 

 racemose. Stamens numerous . . 



4. L. alt. St. 1-3. Herb usually scandent, 



with stinging hairs .... 



C. Calyx of male open in bud. St. 2-3. An 



introduced tree 



Manihot utilissima, PohL Taresan, 8. The Cassava. A soft- 

 wooded shrub with tuberous roots and Simal-like digitate leaves is occa- 

 sionally cultivated. 



1. Euphorbia, L. 



Trees or shrubs, often with swollen fleshy thorny branches, 

 or herbs, always with milky juice. M. fl., a naked pedicelled 

 stamen. F. fl. a pedicelled 3-celled ovary with 3 styles. 

 The males are clustered in a calyx-like 4-5-lobed turbinate 

 or disciform or campanulate involucre, the lobes of which have 

 swollen glands at the sinuses which sometimes develop a 

 petaloid limb. One F. fl. i3 usually iucluded in each involu- 

 cre, the first of the cyme being generally male, and subse- 

 quent ones 2-sexaal. Capsule of three 2-valved cocci separ- 

 ating from a columella when ripe. 



Of the several small herbaceous species, the commonest is E. piluli- 

 fera, L. Pusi-toa, K,, 8., (Cat's milk), an erect (or, in one variety, 

 prostrate) herb 6"-2 ft. high, with opp. shortly petiolod very oblique sor- 

 rulated leaves £-l£ 7 long. Involucres in axillary and terminal dense- 

 flowered sessile or poduncled cymose heads. The root is given to allay 

 vomiting, Camp. 





Fleshy small trees 

 thorns. 



or shrubs armed with stipulary 

 3-5-winged 



Branchlets prominently sinuately 



Stipular thorns in the sinuses. 



Branchlets somewhat 5-angled from the sub- 



confluert prominences. Stipular thorns on the 



prominences (tubercles) .... 



Branchlets u rete, tubercles flat, not confluent 



Fieffhy small tree or shrub, without thorns . 



Cultivated -hi*ub, not fleshy, bearing brilliant 



red leaf-like bracts 



212 



1. antiquorum. 



2. neriifnlia. 



3. tficulia. 



4. Tirucalli. 



5. pulchei'rima. 



