EUPHORBIACE^. 251 



143. Petalostigma F. Muell.^ — Flowers dicEcioiis or more rarely 

 raoncBcious eglandiilur apetalous ; sepals 4-6, imbricated. Stamens 

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

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

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

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

 obttu'ator above micropyle extrorsely much evolute ; style branches 

 3, 4, widely fieshy-subpetaloid, cimeate-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 tbliaceous siibelliptical. — A silky tomentellose 

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

 ovate or suborbiculate entire penuinerved; 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 8-3d , 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-coccato, 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 ponninerved ; flowers axillary ; 



' In Hook. Journ. (1857), 16. — H. Bn. Eu- — ? Hijlococcus sericeiis R. Bk. in 7/rtKf)-, Icon, 



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



Alio. Pindr. 273. ' In Lamb. Descr. Cinchon. et Ui/ccn. (1797), 



^ Somotimea sterile. 62, t. 10. — A. Juss. Evphorb. 40. — K.ndl. Geii. 



» Ked, bitter. n. 5876.— H. Bn. Euphorb. 565, t. 23, fig. 29, 30. 



* Spec. 1. P. ausliuiinnn?n II. B.v. in Adan- — M. Aug. Prodr. 479. — Toxicudeiidruii Thunb. 



loiiia, vii. 356. — P. quadrilocularc F. MuELL. in Acl. Holm. (1796), 190, t. 7 (not T., not 



loe. cil. — Benth. Fl. Attdral, vi. 92. — P. trilocit- G.v.rtn.). 



fare M. Alio, in i^^o-ff (18C4), 471; Prodr. n. 2. •■' Grceni.sh or whitish. 



