46 XVI. GEHANIACEvE. [Averrhoa. 



Lahore. Produces fruit at Hoshiarpur. Fl. H. and R.S. Fruit C.S. Two 

 varieties cultivated in Bengal, one with acid, the other with sweet fruit. The 

 leaves are sensitive. 



2. A. Bilimbi, Linn. ; Eoxb. ii. 451 ; W. & A. 142 ; Bedd. Fl. Sylv. 

 t. 117. Vern. Bilimbi, belambu, blimbu, anvalla. 



A small tree ; leaflets subopposite, pubescent, oblong, acuminate, 3 in. 

 long, 6-14 pair, on short pubescent petiolules. Flowers \ in. long, dark 

 brownish purple, in panicles on the old wood of stem and branches. 

 Calyx and branches of inflorescence with dense ferruginous pubescence. 

 All stamens generally antheriferous. Fruit oblong, 2 in. long, with ob- 

 tuse angles, yellow. Seeds without arillus. 



Cultivated and run wild in tropical India. Native country unknown. Fl. 

 H.S. Fr. R.S. Fruit acid, pickled or preserved with sugar. 



Order XVII. RUTACE-ffi. 



Shrubs or trees, rarely herbs, generally aromatic, with alternate or more 

 rarely opposite, compound or simple exstipulate leaves, dotted with trans- 

 lucent glands. Sepals 4-5, free or connate. Petals same number as 

 sepals, hypogynous or perigynous. Stamens as many, or twice as many, 

 as petals ; anthers generally versatile, 2-celled. Disc annular, cylindri- 

 cal or elongated, between stamens and ovary. Carpels 4-5, mostly con- 

 nate. Seeds oblong or reniform, with or without albumen ; embryo 

 large; cotyledons fleshy or foliaceous. Gen. PI. i. 278; Eoyle 111. 129, 

 157; Wight 111. i. 104, 165 (Aurantiacew, Zanthoxylece). 



Carpels more or less distinct ; flowers unisexual . . .1. Zanthoxylum. 

 Carpels connate ; ovules 1-2 in each cell. 

 Petals imbricate ; stamens 8-10. 



Style deciduous ; leaves imparip innate. 



Thorny shrubs ; leaflets opposite ; common petiole winged 2. Limonia. 

 Unarmed shrubs ; leaflets alternate or subopposite ; com- 

 mon petiole terete. 

 Stamens 10 ; filaments subulate ; leaflets alternate . 3. MurrAYA. 

 Stamens 8-10 ; filaments dilated ; leaflets subopposite 4. Clausena. 

 Style short, persistent ; leaves 1-5 foliolate . . .5. Glycosmis. ! 

 Petals valvate ; stamens 4-5 ...... 6. Skimmia. 



Carpels connate ; ovules numerous. 



Leaves simple ; stamens 20-60 7. Citrus. 



Leaves imparipinnate ; stamens 10-12 . . . .8. Feronia. 

 Leaves trifoliolate ; stamens 30-60 9. ^Egle. 



Toddalia aculeata, Pers. ; Wight 111. t. 66 ; syn. Scopolia aculeata, Roxb. Fl. Ind. 

 i. 616, is a thorny scandent shrub, with 3-foliolate leaves, and orange-coloured 

 pungent berries, 5-grooved and 5-seeded. South India, Kamaon (Kanj), found 

 by Madden in Mairwara {Dalian, lahan). As. Soc. Journ. xvii. pt. i. 404. 



1. ZANTHOXYLUM, Linn. 

 Leaves alternate, imparipinnate. Flowers unisexual. Calyx 3-5-lobed, 

 imbricate. Petals 3-5, or none. Male flowers : stamens 3-5, round a 

 rudimentary ovary; anthers versatile. Female flowers : carpels 1-5, oblique, 

 1 -celled, 2 ovules in each cell ; styles lateral. Fruit-carpels distinct, 

 1-5, dry or drupaceous, 1 -seeded, splitting in 2 yalves. Seeds with a 





