L96 XLI. AJSTACARDIACEiE [Rhus 



C, Leaves simple. 



I. Petals enlarged in fruit. 



Pruit stalked 7. Melanorrho: v. 



Fruit sessile 8. Swintonia. 



II. Petals not enlarged in fruit, oyary inferior. 



Spurs on petioles 9. Holigarna. 



Leaves undulate 10. DRiMYcARPUte. 



III. Petals not enlarged m fruit, ovary superior. 



Leaves opposite, entire 11. Bouea. 



Leaves opposite, serrate Dobinea (p. 205). 



Leaves alternate (see NotJioxjegla). 

 Stamens twice the number of petals. 

 Drupe on a iieshy liypocarp .... Anacakdil m (p. 205). 

 Drupe on tlie persistent, not enlarged calyx 12. Buciianania. 

 Stamens as many as j3etals, one only fertile . 13. Man&ifera. 

 Stamens as many as petals, all fertile. 

 FL bisexual, stamens 4-6 . . . .14. Gluta. 

 n. polygamous, stamens 4, leaves some- 

 times opposite 15. NOTHOPEGIA. 



Fl. polygamous or dioecious, stamens 5-6, 



drupe on a fle&liy liypocarp . . 16. Semecarpi s. 



1. RHUS, Linn. ; PL Brit. Ind. ii. 9. 



Trees or shrubs, resin ducts filled with a viscous milky, often caustic juice. 

 L. simple, trifoliolate or imparipinnate. 'EL small, generally dicecious, 

 white or greenish, in axillary or terminal panicles. Calyx small, 4-6-cleft, 

 persistent, segments imbricate, petals deciduous, equal, imbricate. Disk fleshy, 

 adhering to base of calyx, often 5-lobed, the lobes alternating with stamens 

 and opposite the petals. Ovary 1-celled, styles 3, ovules suspended from a 

 long filiform basal funicle. Fr. a small dry compressed drupe, endooarp 

 coriaceous, crustaceous or bony, the mesocarp often full of resin. Testa thin, 

 membranous, radicle superior, incurved along the edges of the cotyledons 

 (acoumbent). Species 120, a few tropical, most in the warmer temperate 

 regions of both hemispheres. 



A. Leaves simple. 



1. R. Cotinus, Linn. ; Brandis F. M. 118 ; CoUett Simla M. fig. 34 — Syn. 

 R. velutina^ Wall, ; Cotinus Coggygria^ Scop. ; Engler ii. Prantl iii. 5, 164. 

 Vern. Tung, Timga, Tungla^ North- West Himalaya. 



A deciduous shrub or small tree, heartwood dark yellow, mottled. Branchlets, 

 petioles and underside of leaves with short soft pubescence. L. strongly 

 aromatic, entire, obtuse, elliptic or obovate, petiole often longer than leaf, PL 

 on slender pedicels in a large hairy panicle, fertile flowers few, the pedicels of the 

 numerous sterile flowers elongate after flowering, they are densely covered with 

 long silky hairs and form a spreading panicle of slender feathery branches. 

 Drupe l"Seeded, obliquely obovate, \ in. long, with prominent veins when ripe. 



Eastern slopes of Suleiman range. ISTorth-West Himalaya to the Sarda river, 

 3-6,000 ft. Fl. April-June, the i*ed young leaves in April. South Europe, Western 

 Asia, China. 



B. Leaves trifoliolate. 



2. R. parvifiora, Eoxb,; Brandis E.Fl. 119. Yern. Tumra, Dungla^ Ninas, 

 Jauns ; Timga, Kumaon. 



An unarmed often gregarious shrub, sometimes a small tree. Branchlets, 

 petioles, underside of leaves and inflorescence clothed with dense brown 

 tomentum. Leaflets obovate, the lower portion entire, the upper irregularly 

 crenate. Terminal leaflet 2-3 in. long, narrowed into a short marginate petiole, 

 the lateral sessile, smaller. Panicle large, terminal, the lower branches from 



