5i8 XLV. ANACARDIACE^. [Buchanania'. 



Leaves pinnate. 



Sepals accrescent in fruit . . . .9- Parishia 



Sepals not accrescent in fruit. 

 Stamens 5 with 5 staminodes. 



Stigma erect 3-lobed . . . .10. Microstemon 



Stigma flat not 3-lobed, bent . . .11. Pentaspadon 



Stamens 4 to 10, no staminodes; drupe 



small . . . . . .12. Rhus 



iii. Semecarpeae. Ovary i -celled of 3 carpels united ; ovule i ; stamens 

 in I row; styles 3 or i ; drupe large, connate with a fleshy. peduncle; leaves 

 simple. 



Petals valvate ; style i ; calyx enlarged adherent 



to drupe . . . . . • i3- Melanochyla 



Petals imbricate ; styles 3 ; drupe on a large 



fleshy receptacle . . . .14. Semecarpus 



iv. Spondi,^. Ovary and drupe 2- to 5-celled; leaves imparipinnate. 

 Flowers bisexual; drupe large globose; flowers 



5-merous, stamens 10; drupe 5-celled . 15. Dracontomelum 



1. BUCHANANIA, Roxb. 



Leaves alternate, simple. Flowers bisexual, white. Calyx 

 short 3- to 5-toothed, imbricate. Petals 4 to 5, oblong, imbricate. 

 Disc orbicular 5-lobed. Stamens 8 to 10 from base of disc. Carpels 

 5 to 6, one fertile. Style short. Stigma truncate. Drupe small, 

 ovoid, compressed; stone bony, 2-valved. Seed gibbous. About 

 25 species, Asia and Australasia. 



Leaves round or blunt at tip ; panicle glabrous . . (i) B. lucida 



Leaves acute ; panicle pubescent . . . . (2) B. sessilifolia 



(i) B. lucida Bl. Ann. Mus. Bot. Ltigd. Bat. i. 184; Hook. fil. 

 F.B.I, ii. 24. B. fiorida var. lucida King, I.e. 464; Engler, DC. 

 Mon. Phan. 189 {not B. fiorida Schaner). B. petiolaris Miq. Fl. 

 Ind. Bat. i. (2), 637. 



Tree about 40 to 60 ft. tall. Leaves coriaceous, oblong-lanceo- 

 late or obovate blunt rounded, narrowed from below middle to 

 the long-winged petiole, shining; nerves 12 pairs fine, reticulations 

 distinct, 3 to 5*5 in. long, 1-5 to 175 in. wide; petioles '5 to 75 in. 

 long. Panicles axillary at branch-ends, lax, spreading, 6 in. long, 

 2 in. across. Flowers greenish white "25 in. across; pedicels "i in. 

 long. Sepals 4 to 5, orbicular. Petals 4 or 5, elliptic. Stamens 8 ; 

 anthers elongate cordate. Pistils 3 to 4. Drupe ovoid or sub- 

 globose, '25 in. long. Hah. Common in woods. Singapore to 

 Penang and Kedah and Lankawi. Distrib. Burma, Sumatra, 

 Labuan, Siam. Native names : Arga; Kelompang Kras (Kedah). 



var. lax i flora Ridl. 



Leaves oblanceolate, quite blunt, rounded. Panicle 6 in. long, 

 very lax; branchlets (lower) 1-5 in. long; peduncle 7 in. long; 

 pedicels '2 in. long, slender; buds oblong -i in. long. Hab, Pulau 

 Adang. 



