142 MINT ORDER 



LAMIALES MINT ORDER 

 VEREENACEAE VERBENA FAMILY 



Sepals 4-5, united, petals 4-5, united into a regular or 2-lipped corolla, 

 the tube usually cylindric, stamens 4 in pairs on the tube of the corolla, 

 rarely only 2 or as many as the corolla lobes and alternate with them, ovary 

 with 2-4 cavities (rarely 8-10) with 1-2 ovules in each cavity, style terminal, 

 simple, stigmas 1 or 2, fruit dry, separating at maturity into 2-4 nutlets ; 

 flowers in terminal or axillary clusters ; herbs or shrubs with opposite, 

 whorled or rarely alternate leaves. 



1. Corolla 4-lobed; nutlets 2 Lippia 



2. Corolla 5-lobed ; nutlets 4 Verbena 



Lippia Linne 1753 Lippia 

 (Named for Lippi, a French naturalist) 



Sepals 2-4, united into a small calyx, petals 4, pale blue, purple or white, 

 united into a 2-lipped corolla, tube cylindric, lobes broad, spreading, often 

 notched, stamens 4 in pairs, on the tube of the corolla, ovary with 2 cavities, 

 1 ovule in each, style short, stigma oblique or curved backward, fruit dry, 

 separating into two nutlets ; flowers in axillary or terminal spikes or heads ; 

 leaves opposite, sometimes whorled or rarely alternate ; perennial. 



1. Leaves linear-wedge-shaped, 2-8-toothed above L. cuneifolia 



2. Leaves lanceolate to oblong, many-toothed L. lanceolata 



Verbena Linne 1753 Verbena, Vervain 



(Lat. verbena, a sacred branch) 



PL 24, fig. 7. 



Sepals 5, united into a tubular, 5-angled, more or less unequally 5- 

 toothed calyx, petals 5, variously colored, united into a salver- or funnel- 

 form corolla, 2-lipped or regular, stamens 4 in pairs on the corolla-tube, 

 (rarely 2) included, ovary 4-celled, 1 ovule in each cavity, style usually 

 short, 2-lobed at the summit, one of the lobes stigmatic, fruit dry, mostly en- 

 closed by the calyx, at length separating into 4 nutlets ; flowers in terminal 

 solitary or clustered spikes; leaves mostly opposite; annual or perennial. 

 1. Flowers 8-25 mm. long, 4-20 mm. wide, in flat- 

 topped clusters 



a. Corolla 4-8 mm. wide ; leaves .5-1 in. long V. cilidta 



b. Corolla 8-20 mm. wide; leaves 1-4 in. long 



(1) Corolla 8-10 mm. wide; leaves twice pin- 



natifid V. bipiwiatifida 



