PJiryma.] cxi. veebenaoe^. (C. B. Clarke.) 561 



Shrubs. Calyx Bmall. Truit a drupe 2. LiNTANA. 



Small shmbs. Calyx small. Fruit capsular 3. LippiA. 



Small shrubs. Calyx narrowly cylindric, 5-ribbed. Stamens 4 4. BotroHEA. 



Herb. Calyx narrowly cylindric, S-ribbed. Stamens 4 . . 5. Staohiiabfheia. 



** Fyrenes of the fruit 2, 2-seeded. 

 Herb. Calyx accrescent, enclosing the fruit 6. Peita. 



*** Pyrenen of the fruit 4, l-seeded. 



Herb. Calyx tubular, not accrescent 7. Vbebena. 



Tribe 3. Viticb^. Inflorescence oymose, centrifugal; cymes panicled.' 

 Drupe with 4 (in G-eunsia many) pyrenea. — Trees or shrubs. 



* Corolla regular, stamens isomerous, equal. (Leaves entire.) 



Flowers 5-merous. Leaves scattered. Drupe with 5-2 pyrenes 8. Gbunsia. 



Flowers 4-merons. Drupe with 4 pyrenes 9. Callicabfa, 



Flowers 4-6-merous. Drupe with 1 4-celled pyrene, included 



in the accrescent calyx 10. Teciona. 



** Corolla flipped, stamens didn/namous. 



■\ Drupe with 1 pyrene. 



Leaves entire or toothed. Flowers small 11. Pbemn A. 



Leaves entire or toothed. Corolla 1 inch 12. Gmeiiita, 



Leaves digitate (in 1 species unifoliolate) 13. Yitex, 



ff Drupe with 4 pyrenes. (Leaves simple.) 



Calyx in flower campanulate 14. Clebodendeoit. 



Calyx in flower large, patelliform 15. Holmskioldia. 



Tribe 4. OABTOPTEBrDB^. Inflorescence cymose, centrifugal ; cymes 

 panicled. Fruit dividing into 4 pyrenes.— Trees or shrubs. 



Leaves simple. Cymes axillary depse or thyrsoid ... 16. Cabyoptebis. 



Leaves entire. Cymes in a dense corymbose panicle ... 17. Giossocaeta. 



Leaves entire. Panicle pyramidal, lax 18. Htmknopybamis. 



Leaves large, impari-pinnate 19- Pekonema. 



Tribe 5. StmphohemejB. Cym^s 3-9-flowered, capitate; bracts of the 

 flower-head 6 or 3-4, usually large, involucrif orm. Fruit nearly dry, small. 

 — Large climbers. 



Bracts 6. Corolla 6-16-merous. Anthers long exsert . . 20. Symphobbma. 

 Bracts 6. Corolla 5-6-merou8. Anthers included or shortly 



gjsgrt 21. Sphenodesma. 



Bracts 3^. ' Corolla 2-lipped 22. CoNasA. 



Tribe 6. AviCEUNiEiu. Cymes densely capitate. Calyx 5-partite ; segments 

 concave, much imbricate. Fruit capsular, somewhat fleshy, dehiscent. 

 Shrubs. Leaves entire. Flowers small 23. Atiobhnia. 



I. PBRVDXA, Linn. 



An erect herb. Leaves petioled, membranous, toothed. Spilces long, 

 slender; bracts linear, small; bracteoles minute. CaZj^x tubular ; teeth 3, 

 linear, hooked. Corolla smaXi, tubular, 2-lipped; lower hp larger, of 3 



VOL. IV. ° ° 



