Buchanania.', ANACARDIACEAE. 257 



merits usually subulate ; anthers 2-celled basi- or dorsi-fixed. 

 Ovary superior, rarely half inferior, 1- or 2-6-celled, rudimentary 

 or 2-3-fid in the <J, sometimes of 5-6 free carpels ; styles usually 

 combined ; stigmas subsessile or capitate ; ovules solitary, pendu- 

 lous from the top or side of the cell or from an ascending basal 

 funicle. Fru.it superior, rarely inferior, a 1-5-celled, 1-5-seeded 

 drupe ; the stone sometimes dehiscent. Seed exalbuminous or 

 very nearly so, embryo straight or curved ; cotyledons plano- 

 convex ; radicle short. 



Carpels 5 or 1 only ; style lateral ; ovule suspended from a basal 

 funicle; leaves simple : 



Carpels 5, 1 only fertile ; drupe lenticular, 2-valved 1. Buchanania. 

 Carpel 1 : 



Stamens 5-10, 1 only or more fertile : 

 Fruit a fleshy drupe ; 1 stamen usually only fertile 



2. Mangifera. 

 Fruit a reniform nut on a fleshy hypocarp, all or most of the 



8-10 stamens fertile 3. Anacardium. 



Stamens 5 fertile ; fruit a globose or ovoid drupe... 4. Gluta. 



Carpels 4-5, rarely 1 ; style apical ; leaves pinnate : 



Petals valvate ; leaves usually with an iiitramarginal nerve : 

 Carpels 5 ; drupe usually large, 1 5 seeded, pericarp fibrous 



5. Spondias. 



Carpel 1 ; drupe small, 1-seeded, pericarp oily... 6. Solenocarpus. 

 Petals imbricate ; leaves without intramarginal nerve ; drupe com- 

 pressed .7. Odina. 



Carpels 3, rarely 1 ; style apical or lateral ; leaves trifoliolate 



8. Rhus. 



Carpels 3, forming a unilocular ovary ; styles apical, free or connate ; 

 leaves simple : 



Styles short, terminal ; stigma 3-lobed ; flowers tetramerous 



9. Nothopegia. 



Styles 3, divergent ; stigmas capitate ; flowers usually penta- 

 merous : 



Ovary in $ or $ semi-inferior or superior ; petiole without spur- 

 like appendages; fruit with a basal hypocarp...lO. Semecarpus. 

 Ovary in $ or $ inferior; petiole with 2-4 spur-like appen- 

 dages ; fruit partly or wholly enclosed in a hypocarp 



11. Holigarna. 

 1. Buchanania, Spreng. 

 Trees. Leaves alternate, petioled, simple, usually coriaceous., 



