VERBENACEAE 1013 
6. ALOYSIA Ortega. 
Shrubs, usually sweet-aromatic. Leaves opposite: blades entire or toothed. Flowers 
perfect, in axillary slender loosely flowered spikes or racemes, each subtended by a narrow 
inconspicuous deciduous bract. Calyx usually pubescent: tube angled, not flattened : 
lobes 4, slender, nearly equal. Corolla 2-lipped, the upper lip and the lobes of the lower 
lip nearly equal. Nutlets thin-walled. 
1. Aloysia ligustrina (Lag.) Small. A branching shrub 1-3 m. tall, with puberulent 
foliage, sometimes spinescent. Leaves opposite ; blades oblong to oblong-lanceolate, 6-25 
mm. long, acute or acutish, commonly entire, short-petioled : racemes spike-like, short- 
peduncled, 1-8 cm. long: bracts about as long as the calyx, acuminate: calyx hirsute, 
2-2.5 mm. long ; lobes subulate or lanceolate-subulate, about as long as the tube : corolla 
white, tinged with violet, 3 mm. long; tube slightly curved ; limb 2.5 mm. high, the lobes 
crisped, the lower one largest. [Verbena ligustrina Lag. Lippia lycioides Steud. ] 
In rocky soil, Texas to California and Mexico. 
7. PRIVA Adans. 
Perennial caulescent herbs. Leaves opposite: blades membranous, toothed. Flowers 
in slender peduncled spikes. Calyx sessile or nearly so: tube 5-ribbed : lobes 5. Corolla 
salverform: tube straight or incurved, slightly dilated above: limb spreading, oblique, 
slightly 2-lipped : lobes 5, short. Stamens 4, didynamous, included: anthers with parallel 
or slightly divergent sacs. Staminodium minute or wanting. Ovary 2-celled, each cavity 
with more or less well developed septa. Ovules 2, or by abortion 1, at the base of each 
cavity. Fruit enclosed in the calyx, separating into 2 nutlets. 
1. Priva echinàta Juss. Foliage more or less pubescent. Stems 2-6 dm. tall, 
branching : leaf-blades ovate, 2-10 cm. long, acute or acuminate, serrate, truncate or cor- 
date at the base ; petioles much shorter than the blades : racemes loosely flowered, 5-15 cm. 
long : pedicels 1-2 mm. long: calyx cylindric-prismatic, 2-3 mm. long, accrescent, pubes- 
cent : corolla slightly surpassing the calyx, salverform, with short rounded lobes: fruit 
ovoid-pyramidal, 5-7 mm. long: nutlets included in the calyx, spiny-tuberculate on the 
back, 3-4 mm. long. 
Insandy soil, Florida. Also in tropical America. 
8. ABENA Neck. 
Annual or perennial herbs, or shrubs. Leaves opposite or alternate: blades toothed, 
often rugose. Flowers solitary and sessile in the axils of bracts, or imbedded in excava- 
tions of the thick rachis. Calyx membranous or herbaceous: lobes 5, equal or unequal, 
usually unchanged at maturity. Corolla white or of various colors: tube sometimes 
slightly dilated above: limb spreading: lobes 5, equal or unequal. Stamens 2, included : 
anthers with unappendaged connectives. Staminodia 2, small. Ovary 2-celled. Ovules 
solitary in each cavity. Fruit included in the calyx, separating into 2 nutlets. 
1. Abena Jamaicénsis (L.) A. S. Hitchcock. An annual shrubby plant, with spar- 
ingly pubescent or glabrate foliage. Stems 6-15 dm. tall: leaves alternate or opposite ; 
blades oblong, ovate or oval, 2-8 em. long, coarsely serrate, abruptly or gradually narrowed 
at the base ; petioles margined, as long as the blades or shorter: spikes 1.5-5 dm. long, 
quill-like : bracts imbricated, lanceolate to oblong-lanceolate, acuminate, serrulate, 5-8 
mm. long: flowers in depressions of rachis : calyx-lobes triangular or triangular-ovate : 
corolla blue, 8-11 mm. long; tube slightly curved; limb 8 mm. broad: nutlets 3 mm. 
long, buried in the rachis. (Stachytarpheta Jamaicensis (L.) Vahl. ] 
In sandy soil, Florida. Also in tropical America. 
9. LANTANA L. 
Shrubs, or rarely herbs, with pubescent foliage, sometimes armed with prickles. 
Leaves opposite: blades toothed, often rugose. Flowers in dense or congested peduncled 
spikes. Calyx membranous, with a truncate or sinuate border. Corolla white or of vari- 
ous colors: tube slender, often curved, sometimes slightly dilated above: limb more or 
less 2-lipped : lobes 4-5, obtuse or retuse. Stamens 4, didynamous: filaments adnate to 
about the middle of the corolla-tube. Ovary 2-celled. Stigma oblique. Ovules solitary 
