316 Aliacardiacecc. \Buc1ia7iama. 



XLII.— ANACARDIACE/E. 



Trees, rarely shrubs ; 1. alt., simple or compound, without 

 stip. ; fl. small, unisexual, often dicecious, rarely bisexual; 

 cal. 3-5-fid, or of 5 distinct sep. ; pet. 5, 4, rarely 3, imbricate, 

 rarely valvatc ; stam. 4-10, inserted inside or outside or on 

 the disk ; disk conspicuous, annular, often lobed; ov. i-celled 

 (rarely 5-celled), with a solitary pendulous ovule (in Biichaiiania 

 of 5 distinct carp.); fruit a drupe, with a i- (rarely 5-) celled, 

 I -seeded stone ; seed without endosperm, embryo large, with 

 plane-convex or flat cotyledons. 



Carp. 5 distinct, only i fertile ; stam. 10 



Carp, combined into a i-celled ovary ; stam. 4-8. 



Stam. 5-8, only 1 fertile ; pet. 5 ; style i 



Stam. 8 ; pet. 4 ; styles 4 . . . . 



Stam. and pet. 5 ; styles 3 . 



Stam. and pet. 4 ; style i . . . . 



Stam. 6 ; pet. 3 ; style i . . . . 

 Carp, combined into 5-celled ovary ; stam. 10 



Eminently inhabitants of the moist region of the low country, but a 

 few also in the dry region to which Semecarpus obscura is restricted. 

 Sonecarpus coriacea and 5. nigroviridis alone are found in the hills, the 

 former being restricted to the montane zone. 



I. BUCHANAirZA,* Roxb. 



Trees; 1. simple; fl. bisexual, in axillary panicles; sep. 5, 

 imbricate, persistent ; pet. 5, imbricate ; stam. 10, inserted 

 outside disk ; disk annular, lobed ; carp. 5, distinct, only 

 I perfect, the rest barren ; funiclc of ovule basal ; drupe small, 

 stone bon\% 2-valved. — Sp. 20; 6 in Fl. B. Ind. 



B. ang-ustifolia, Roxb. Fl. Ind. ii. 386 (1832). 



Thw. iMium. 78. C. P. 471. 



Fl. B. Ind. ii. 23. Wight, Ic. t. loi. 



A tree, young parts glabrous ; 1. l\-<S in., oblong or 

 lanceolate - oblong, acute, not tapering at base, obtuse or 

 emarginate, entire, quite glabrous, shining above, coriaceous, 

 petiole i-| in., stout; fl. small, nearly sessile, in small, axillary, 

 crowded, glabrous panicles shorter than the 1. ; sep. orbicular, 



* Commemorates Francis Buchanan (afterwards Hamilton) M.D., 

 F.R.S., superintendent of Calcutta Botanic Garden, 1814-15. Died 1829. 



