272 XLT. AN:^ cahdiace.!:. 



Order XLY. ANACARDIACEiE. 



Trees or shrub? usually with oleo-resinous often acrid juice. Leaves 

 alternate, siiiij)le or compound, exstipulate. Flowers small, regular, 

 1 -sexual, polygamous, or 2-sexual, usually panicled. Calyx 3-5-partite, 

 sometimes accrescent. Disk tlat, cupular or annular, entire or lobed, 

 rarely obsolete. Stamens equal in number to the petals, rarely more, 

 inserted under (rarely on) the disk ; filaments usualh^ subulate ; anthers 

 2-celled, basi- or dorsi- fixed. Ovary superior (half inferior in Holi- 

 garna), 1- or 2-6-celled, rudimentary or 2-3-fid in the male (of 5-6 

 carpels in Bvchanania) ; ovule solitar}'^ in each cell, pendulous from the 

 top or side of the cell or from an ascendhig basal funicle. Fruit 

 superior (except in JJoliganm), usually a 1-5-celled, 1-5-seeded drupe ; 

 stone souietiuies dehiscnnt. Seed exalbuminous ; embryo straight or 

 curved ; cotyledoiis plauo-convex ; radicle short. — Distrib. Chiefly 

 tropical ; genera 55 ; species about 450. 



0\ary 1-eelled or if 2-celled with 1 cell early suppressed. 

 Ovules pendulous i'roui a basal fuuicle. 



Leaves pinnate or 3-fuliolate (sometimes simple in 



/?. Cotinus) 1. Eiirs. 



Leaves simple. 



Flowers polygamous. 



Stamemsl-.T; fruit a fleshy drupe 2. Manoifera. 



Stamens 8-10; fruit a reniform nut 3. Anacardium. 



Flowers hermaphrodite; stamens 10; fruit a 



drupe 4. Buchanania. 



Ovules pendulous fi'om the tup or above the middle of 

 the cell. 



Leaves pinnate. 



Petals valvate ; style 1 5. SoLENOCAurus. 



Petals imbricate; styles 3-4 6. Oliina. 



Leaves simple. 



Stamens 5-G; styles 3. 



Petals imbricate ; drupe superior 7. Semecarpus. 



Petals valvate; drupe inferior 8. Holioakna. 



Stamens4; style 1 9. NoTuoPECiiA. 



Ovary 4-5-celled ; leaves pinnate 10. Spondias. 



1. RHUS, Linn. 



Trees or shrubs often with acrid juice. Leaves alternate, 3-foliolate 

 or imparipinnate (simple in 11. Cotinus). Flowers small, in termiual and 

 axillary panicles, polygamous. Calyx small, 4-()-[)artite, persistent; 

 segments subequal. Petals 4-6, equal, spreading, imbricate. Stamens 

 4, 5, 6 or 10, inserted at the base of the disk, free ; filaments subulate ; 

 anthers short, imperfect in the female flower. Ovary sessile, ovoid or 

 globose, 1-celled ; ovule pendulous from a basal funicle : styles 3, free 

 or connate, short or long; stigmas simple or capitate. Drupe small, 

 dry, comi)ressed ; stone coriaceous, crustaceous or bony. Seed pen- 

 dulous from the funicle ; tesfa membranous ; cotyledons flattish ; radicle 

 hooked, short, superior. — DiBTUin. Chiefly in warui extratropical regions 

 of both homisi)heres ; species about 120. 



1. Rhus mysurensis, ITeyne.ex Wigld S,- Am. Prfxh-. (1834) p. 172. 

 A shrub or small tree; branches woody, often spiny, the younger i)ubesc("nt. 

 Leaves 3-f(»liolate ; leaflets obovate, cuneate, sinuate-toolheil or siiblobed, 



