XCVIII. EUPHORBIACE.E 



557 



Manihot (p. 582). 

 Hevka (p. 582). 



I I EIJiSII 1 )!. 



ClI.ETOOAUrCS (p. 582). 

 BaLIOSPEBMOM. 



Cnesmone (p. 583). 

 Plukenetia (p. 583). 

 Dalechampia. 



C. Petals 0. Calyx campanulate. 



Stamens 10, filaments free 



Anthers 5-10, adnate to a central column. 



D. Petals 0. $ sepals imbricate. 



& fl. fascicled. 



Fr. smooth tardily dehiscent. Eesinous trees, 

 stipules sheathing 28. 



Capsule echinate ...... 



g fl. in panicles or racemes . . . .29. 



E. Petals. 0. £ sepals or calyx-segments valvate. 

 (a) Twining shrubs. 



L. undivided, base cordate. 



o" calyx 3-lobed, anthers 3, cocci not 

 winged, sepals not enlarged in fr. 

 o" sepals 4-5, stamens 8-30, cocci winged, 

 sepals enlarged in fr. 

 L. deeply lobed or trifoliolate, fl. in invo- 



lucrate heads 30. 



(6) Trees or erect shrubs. 



a. Filaments free, stamens 2 or 3, fl. in androgynous or unisexual spikes. 

 $ calyx 2-3-lobed . . . . .31. Sapium. 

 6* sepals 3, small ..... 32. Excoecabia. 

 /3. Filaments free, stamens 4, anthers 2-celled. 

 Filaments slender, anther-cells par- 



allel, adnate to a thick connective 33. Adekociil.ena. 

 Filaments short, flat, anther-cells div- 

 aricate Ccelodepas (p. 586). 



y. Filaments free or only united at 1ms.', stamens <i-x , anthers 2 -celled. 

 L. alternate, ant her-eells divaricate. 



Styles short, entire, densely plumose 34. Claoxylon. 

 Styles filiform, with numerous slender 



branclii'S 35. AcALYPHA. 



L. alternate, anther-cells contiguous. parallel. 



Back of cocci rounded . . . 36. Alchobnea. 



Back of cocci sharply keeled . . Cm r..i i:i;as i p. 5S7\ 



L. alternate or opposite, anther-cells 

 globose or shortly oblong, widely 

 separated by the thick connective 37. Mallotus. 

 L. opposite, anther-cells contiguous, parallel. 



L. entire, fr. a drupe .... 38. Tkewia. 

 L. dentate or sinuately lobed, fr. a 



capsule 39. Ccelodisci 9. 



S. Filaments free, stamens 1-cc , nut hers 3-4-oelled. 



Styles entire 40. Macabanoa. 



Styles with 2 3 long filiform arms . . Clbidion (p. 592). 

 t. Filaments connate in bundles, stamens s.. 



Fl. in terminal androgynous panicles . SlCINDS (p. 593). 



Fl. usually dioecious, in axillary spikes . 11. Eomonoia. 

 Fl. mono'eious, ,_? in axillary-spikes, ',' 

 solitary 



Position \meertain 



Lasiococca (p. 593). 

 Sphtbamtheba ( p 593 1. 



1. EUPHORBIA, Linn.; PI. Brit. Ind. v. 244. 



Mostly lierlis, a few shrubs or s>ft-\v Id trees with fleshy branches, 



abounding in milky juice, contained in continuous laticiferous tubes. L. of 



the stem alternate, without stipules, or with Btipulai spines, those on the 



flowering branches opposite. Fl. heads resembling single ii.. consisting of a 



Calyx-like cup-shaped involucre, lobes !-.">, alternating with broad fleshy glands, 

 enclosing 1 1 )- 1 5 male and one central female fl. ,{ : one 2-celled, often didy- 

 mous : i r 1 1 1 1 . - 1- on mi articulated lilameuf. ,' : a solitary stipitato ■".■-• 1 1 . • 1 

 ovary, styles 3, free or combined, simple or 2-fid. Capsule separating into 

 three 2-valved cocci. Species over inn, absent only in the arctic /.one. 



The species hero described all belong to the Section Enpliorbium with 



