34 



RUTACE^. 



Conspectus of genera. 



Ovary deeply 2-5.1obed. Fruits carpellar or 3-4-coccons. 

 EvOBlA. Leares opposite or nearly so. Petals 4-5, Yalrate. Stamens as many. Coooi dehiscent. Unarmed trees. 



ZiNTBOXTLON. Leaves all alternate. Petals 3-6, seldom none. Stamens 3-5. Cocci 1-5, almost globular, usually 



S-valved. Usually armed. 



Ovary not or almost not lobed. Fruit coriaceous, dmpaoeons or a berry, indehiscent. 

 O Seeds with albumen. 

 AcMNTCRU. Petals 4. Stamens 8. Leaves l>folioIate. 

 00 Seeds without albumen. 

 X Cells with 1 or 2 ovules. 

 ^' f Style very short, not jointed at base, persistent. 



Oircosins.^-Calyx 6-parted. Stamens 10, free. Leaves simple or compound, 

 ft Style jointed at base, oaducons. 



Leaves S-foliolate or pinnate. 

 HiCBOlRLUX. Calyx 6-lobed or entire. Petals valvate. Stamens 10. Ovules by pairs in each cell, superposed. 

 Unarmed. Leaves pinnate. Corymbs terminal. 



Livonia. Calyx 4-5-lobed or-parted. Petals valvate. Stamens 8-10. Spiny. Leaves pinnate or 3-foIiolate. 



HvutiTA. Calyx 5.olefl or-parted. Petals imbricate. Stamens 10, the filaments Uneai--sabulate. Unarmed. 



Cymes terminal. 

 Clauskna. Calyx 4-5-lobed or-parted- Petals imbricate. Stamens 8-10, the filaments dilated below. Unarmed. 

 Panicles or racemes. 



Leaves 1-foliolato. 

 Atalantia. Calyx 2-5.1obed, entire or irregularly oleft. Stamens 8-10, firee or united. Torus oup-ebaped or 



simply raised. Berry terete pulpy. 

 OoNociTBUS. Calyx minute. Berry angular, not pulpy. 

 5t X Cells with numerous ovules, 

 t Leaves 1-foliolate. Bind of berry coriaceous. 

 CmtTTS. Stamens 20-60, rarely only 4-5, often connate. Ovary many-celled. 



tf Leaves compound. Bind of berry woody. 

 Febonia. Leaves pinnate. Stamens 10-12. Ovary imperfectly 5-6-celled. 

 Aeqlb. Leaves 3-foliolate. Stamens 30-60. Ovary 8- or more-celled. 



EVOOIA. 



Panicles corymbose, longer than the petioles. Branchlets terete, thick. Leaflets 

 petioluled, E. triphylla. 



ZANTHOXYIOH.-Ouly tree, Z. Budrunga. 



ACRONYCHIA Only species, A. pedunculata. 



6LYC0SMIS. 



lieaflets entire ; panicles cyme-like and short ; branches grey G. citrifolia. 



MICROMELUM. 



Petals 2 J lin. long; ovary slightly adpressed-pubescent ; young berries glabrous, Jf. ^uiesceMS. 



LIMONIA. 



Armed. Leaflets opposite. Inflorescence puberulous, , L. acidissima. 



MURRAYA. 



Leaflets 3-8 ; petals nearly ^ an inch long, M. exotica. 



Leaflets 10-20 ; petals about 2 lin. long, M. Koenigii. 



CLAUSENA. 



Panicles terminal. Ovary hirsute. Young berries densely tomentose with clustered short 

 hairs , C. Wampi. 



GONOCITRUS 



Filaments free. Torus 1-1| inch long, straight ; calyx glabrous, the lobes triangular ; pedi- 

 cels very short, glabrous G. angulatus.' 



ATALANTIA. 



Filaments united in a tube ; leaves emarginate,. . . . . A. monophylla. 



CITRUS. 



X Young shoots and nerves of leaves beneath pubescent or puberulous. 

 Flowers large, , C. decumana. 



X X All parts glabrous. 



Style very short ; flowers small ; stamens 4-5, free, petioles leaf-like and almost as long 



and broad as the lamina, ; (7. Hystrix. 



Style as long as the ovary or longer. 



II Petals 8-10 lin. long. 

 Leaves acuminate or acute ; berries globular, without a knob ; filaments cohering by 3 or 



4, Q Aurantium. 



Leaves blunt or nearly so ; berries oblong, seldom globular, with a knob, the rind usually 



thick ; filaments free or polyadelphous, C. Medico. 



nil Petals 4 lin. long ; calyx small. 



Note : 1 = Atalantia longispina of App. A. 



