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. Aloysta 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 echinata 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. 



In sandy 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 Jamaic6nsis (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 cm. 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 



