Verbena. 9 



b. Corolla-tube longer, cylindrical, slender, 0.5 — 12 cM. ; 

 limb subregulatly 5-lobed .21. Clerodendron p. 238. 



27. a. Inflorescences capitate, with involucral bracts . . 28. 

 b. Inflorescences cymose or spicately racemose ... 29. 



28. a. Flowers 5-merous .... 26. Sphenodesme p. 331. 

 b. Flowers 6— 18-merous. . . 25. Symphorema p. 329. 



29. a. Inflorescences terminal, composed . 30. 



b. Inflorescences axillary 8. Geunsia p. 28. 



30. a. Inflorescences cymose, panicled . 11. Tectona p. 93. 

 b. Inflorescences racemose, subspicate, brachiate near the 



base 13, Xerocarpa p. 98. 



Tribe I. VERBENOIDE^. 



Subtribe A. EUVERBENE.^. 



I. VERBENA L. syst. veg. ed. I, (1737); R. Brown, 

 Prodr. 514; Benth. and v. MuelL, Fl. Austr. V. 35; 

 Benth. and HooH-, Gen. PI. II, II, 1146; Schauir, DC. 

 Prodr. XI, 535; Engl. u. Prantl, Nat. Pfl. fam. IV. 3a, 

 146; Hook, f., Fl. Br. Ind., IV, 565; Miquel. Fl. Ind. 

 bat. II, 908; Hasskarl. 2e Cat. 's Lands PI. tuin Btzg., 

 134 — Pubescent herbs or undershrubs; leaves opposite 

 or ternately whorled, toothed or pinnatifld, simple; 

 inflorescences spicate, terminal, simple or corymbose; 

 flowers and bracts small; calyx tubular, membranous, 

 shortly 5-toothed; corolla with cylindric tube, sometimes 

 curved; limb ± oblique, sub-2-lipped, 5-lobed, throat and 

 insertion of stamens hairy; stamens 4, included, didyna- 

 mous, inserted in the upper part of the corolla-tube; 

 anthers glandular; style short; stigma unequally 2-fld, one 

 lobe papilliferous, the other glabrous, horn-shaped; ovary 

 supported by a short annular gynophore, at first 1-, but soon 

 4-celled, 4-ovuled; fruit capsular, with 4 one-seeded cocci. 



Distribution: chieflly in tropical America, _very few 



