. 
290 XCIII. VERBENACES. 
3. VERBENA, Linn. 
Calyx tubular, plaited, 5-ribbed, 5-toothed. Corolla nearly 
salver-shaped ; tube cylindrical, widening upwards, straight or 
curved, villous on the inside at the insertion of the stamens 
and bearded in the throat ; limb sub-2-labiate, unequally 5-fid. 
Stamens 4, included ; anthers ovate, subdidynamous. Ovary on 
a ring-like disk, 4- celled ; style equalling the stamens, 2-fid or 
2-lobed, one of the arms stigmatose, the other horn- like, 
barren. Fruit enclosed in the ‘calyx, separating into 4 pieces, 
dry, striate or ridged.—DC. Prod. xi. p. 535. 
Herbs or undershrubs, chiefly American. Stems 4-sided. Leaves oppo- 
site or ternate, very rarely alternate, entire or multifid. Flowers in spikes 
or heads.—V. Bonariensis is naturalized at the Cape, and V. officinalis is 
common and seems to be truly wild. 
4. BOUCHEA, Cham. 
Calyx tubular, elongate, 5-plaited and angled, subequally 
5-toothed, truneate between the teeth. Corolla somewhat 
salver-shaped, the limb oblique, sub-2-labiate. Stamens in the 
throat of the corolla, 4, didynamous, included ; anthers ovate, 
subdidymous. Ovary on a fleshy or disk-like gynophore, 2- 
celled ; cells 1-ovuled; style equalling the stamens; stigma 
bent on one side, dilated into a sub-2- lobed, more or less in- 
folded lamina. Fruit enclosed in the split and gaping calyx, 
of 2 pieces, either separating at maturity or cohering, dry and 
hard, mostly smooth.—_DC. Prod. xi. p. 557 ; Thes. Cap. t. 28, 
t. 190. 
Herbs or halfshrubs. Leaves opposite, entire, toothed or pinnatifid. 
Flowers in terminal spikes.—Several Cape species, Eastern. 
5. STACHYTARPHA, Vahl. 
Calyx tubular, compressed, membranous, with herbaceous 
(rarely only 2 marginal) ribs, commonly with 2 facial and3 ob- 
solete dorsal ribs, mostly plaited, truncate or 5-toothed or 
cleft on one side, or 2-fid, the lobes 2-toothed or entire. Co- 
rolla funnel- or salver-shaped, with straight or curved tube, 
the throat minutely pubescent; limb subequally 5-fid. Sta- 
mens included, the two upper without anthers, lower pair fer- 
tile; anthers 2-celled, cells linear-oblong, superposed. Ovary 
on an annular disk, 2-celled; cells 1-ovuled; style capillary ; 
stigma terminal, peltate-capitate. Fruit enclosed in the 
slightly enlarged calyx, of 2 separable pieces.—DC. Prod. xi. 
p. 561. 
Herbs or shrubs, chiefly American. Flowers in dense, bracteate spikes. 
—1 or 2 Cape species, probably naturalized. 
