EUPHOEBIACE^. 251 



143. Petalostigma F. Mtjell.^ — Flowers dioecious or more rarely 

 monoecious eglandular apetalous ; sepals 4-6, imbricated. Stamens 

 00 , central ; filaments inserted on conical receptacle at apex and be- 

 tween the stamens villose-birsute, otherwise free short erect ; anthers^ 

 extrorse penicUlate at apex ; cells long adnate and rimose. Germen 

 sessile; cells 3, alternating with interior petals, or 4, 2-ovulate; 

 obturator above micropyle extrorsely much evolute ; style branches 

 3, 4, widely fleshy-subpetaloid, cuneate-obovate or lanceolate undu- 

 late-crispate. Capsules drupaceous; exocarp fleshy ;^ putamen bony, 

 3-4-coccous ; cocci 2-valved, dorsally rather prominent carinate 

 within ; seed thick arillate at micropyle ; cotyledons of copiously al- 

 buminous embryo foliaceous subelliptical. — A silky tomentellose 

 small tree ; leaves alternate petiolate ; stipules 2, persistent ; limb 

 ovate or suborbiculate entire penninerved; male flowers in few flowered 

 cymes shortly pedicellate ; female solitary axillary ; peduncle at apex 

 few-bracteate. {Australia.*) 



144. Hysenanche Vahl.^ — Flowers dioecious apetalous ; male 

 receptacle varied in form, sometimes irregular, depressed, undulate 

 or subplicate. Sepals 5-12, imbricated, unequal; exterior usually 

 smaller. Stamens 8-30 , inserted round empty centre of receptacle ; 

 filaments free ; cells of oblong anthers longitudinally adnate, in- 

 trorsely or extrorsely, more rarely all laterally rimose. Receptacle 

 of female flowers conical ; sepals 3-8, deciduous. Germen 3-4- 

 locular; ovules 2-nate; style branches 3, 4, thick recurved dentate. 

 Capsule 3-4-coccate, 6-8-sulcate ; exocarp suberose solubile ; endo- 

 carp ligneous ; seeds in cocci 1, 2, arillate at micropyle ; albumine 

 scanty (coloured) ; cotyledons of straight embryo lateral foliaceous, 

 cordate ^ at base much longer than superior radicle. — A small tree ; 

 branches suberose corticate; leaves opposite or 3-4-nate, shortly 

 petiolate, entire coriaceous glabrous penninerved; flowers axUlary; 



1 In EooTc. Journ. (1857), 16. — H. Bn. Eu- — f Hylococms serieeus R. Bb. in Bauer, Icon, 

 phorb. 657 ; in Adammia, vii. 352, t. 2. — M. ined. (ex Benth.). 



Aao. Prodr. 273. ° In Lamb. Descr, Oinclton,. et Syesn. (1797), 



2 Sometimes sterile. 62, t. 10. — A. Juss. Euphorb. 40. — Endi,. Geti. 



3 Red, bitter. n. 6876.— H. Bn. Euphorb. 565, t. 23, fig. 29, 30. 

 ■• Spec. 1. P. cmstraliamun H. Bn. in Adan- — M. Aug. Prodr. 479. — Toxicodendron Thunb. 



sonia, vii. 366. — P. quadriloculare F. Mdell. in Act. Holm. (1796), 190, t. 7 (not T., not 



loc. eit. — Benth. Fl. Austral, vi. 92. — P. irilocu- G^bin.). 



lare M. Ako. in Flora (1864), 471 ; Prodr. n. 2. ^ Greenish or whitish. 



