

484 I ' XXXIII.- RUTACE^. (J. D. Hooker.) 



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Obdek XXXIII. RUTACE-flE. (By J. D. Hooker.) '."/ 



Trees or shrubs, rarely herbs, abounding in pellucid glands filled witn 

 essential oil (except Peganum). Leaves opposite or alternate, simple or 

 compound, exstipulate. Flowers in axillary or terminal cymes or panicles, 

 (racemed in Bictamnns), never spiked, usually bisexual and regular m the 

 Indian species (except iJictamnus). Calyx oi 4-5 small lobes or sepals. 



Petals 4-5, 



4-5 or 8 or 10, rarely more {Citrus, jEgl 



Stamens 



ments usually free, hypogynous ; anthers 2-ceiled, opening inwards. Btsk 

 within the stamens, crenate or lobed, sometimes large or lung. .^Ovaryoi 4 o 

 free or connate carpels ; styles as many, free or variously united, stigmas 

 terminal, entire or lobed ; ovules usually '-J, in each cell. Fruit a capso e, 

 berry or drupe, or of 1-4 capsular cocci. Seeds usually solitarv ^'^ : j 

 cells, testa various, albumen fleshy or ; embryo straight or curved, radicie 



superior. — Distrib 



aud Australian. Genera 83, and about 650 species. : ! ' 



Tbibe I. Xtutece. Herbs, rarely shrubby. Flowers hermaphrodite 

 Did' thick. Ovary deeply 3-5-lobed ; styles basilar or ventral, tree oi 

 tmited ; cells 3- or more ovuled. Fruit capsular. Albumen fleshy ; emorj 

 usually curved. , < ' ' "\ rZ 



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Flowers 



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Petals 4-5. Stamens 8-10. Ovary sessile . . ; . . . 1. Ruta. _ 



I'etals 4. Stamens 6-8. Ovary pedicelled 2. B<ENNixoHApsp| 



PttaU 4-5. Stamens 12-15 . . ... . . . ... 3. Peoanum. , j;. 



rOwei 





4. Dicta MMid 



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Teibe II. Zanthozylece. Shrubs or trees. Fl(ywers usually l^oiyi 



mous. Disk free, rarely 0. Ovary deeply 2-5-lobed ; styles basuar^ 



ventral mnrp nr iiica fm^^ . /^^Ha o r^^r^^^r^A VfVo/i'y_/'rt'>*r)^/jf ^anSUl^r. /r :i' ' 



or 



,t"vyM-t. 



ventral, more or less free ; cells 2-ovuled. Fruit-carpels 



Leaves opposite. Stamens 4-5 . . . . . . • • . • ^- Evodia 



Leaves opposite. Stamens 4, with 4 staminodes opposite . _. ,; . 



the petals . . . . . 6. TETEACTftMU.t 



Leaves opposite. Stamens 8 . ! ! '. . . . . • • 7. MKLicorE. _. . 

 Leaves alternate. Stamens 3-5 8. ZanthoxicI'«^«-., 



Tribe III. Toddalle». Shrubs or trees. Flowers usn&WyVolygm^^ J 



xnjui!. J.J.J.. AouaaiieaB. cnruDs or trees, J:'towersuaua..^j t--'- -^ 

 Jhsk free. Ovari/ entire ; style single ; cells 1-2-ovuled. Fruit syn^^j^. 



aSVc^/ albuminous ; cotyledons usually flat. V 



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Stem usually prickly. Leaves compouiid. Petals and \- 



htaruena 2-5 each ...;... 9. Toppaua^ , 



Stem unarmed. Leaves 1-3-loliolate. ' Tetaifl 4. Stamens 8 10. Acbonych . 



Stem utiariued. Leaves simple. Petals and stamens 4-5 each IL SKiM^^r . 



Tribe IV. Aurantleae. Sbrubsor trees, i^^i^eraiermapbrodite^^^^^^ 

 and i^tamerts free or connate. Ovary entire ; style simple; ceils i-, 

 -fierry usually pulpy. >S'e€c/ exalbuniiaous. : " r 



J 



3 



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V. .■-.,■-■- 



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Ovxiles solitary or twin in each cell: 





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ifeA.I V--.,..- . "^^ -^^ 



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