LABIATE. a 105 
VERBENACEX. 
Corolla nearly equally 5-lobed: calyx 5-toothed: small flowers in spikes...ccsccesccce A 
Corolla bilabiate, 4-lobed: calyx 2-cleft: small heads on slender peduncles....00 ...00. B 
1. VERBENA, Tournefort. 
officinalis, L. Spikes filiform, bracts minute: leaves pinnatifid. 
polystachya, HBK. Leaves serrate: corolla a line broad. Rare. 
hastata, L. Erect, 3-6 ft high: leaves coarsely serrate, petioled. 
prostata, R. Br. Diffuse, spreading, hairy: corolla 2 lines broad. 
bracteosa, Michx. Similar, but rigid bracts exceeding smaller flowers. 
7 wh 
daddda 
2. LIPPIA, Linnzus. 
L lL. nodiflora, Michx. Creeping: peduncles 1-4 in. long: flowers rose to white. 
LABIATE. 
§ 1. Stamens 4, coiled in the bud, much exserted through a cleft in the upper lip: leaves 
entire: corolla and curved filaments blue or purple............. 02. ece cece cee 1 
§ 2. Stamens erect or ascending, the posterior pair shorter or wanting: anther-cells 
short, close together or united: upper lip of corolla not concave or hooded (except 
in No. 9). 
* Corolla small, almost equally 4-lobed: axillary flowers in dense whorl-like clusters, the uppes 
axils flowerless. 
Stamens 4, nearly equal, all perfect: calyx 5 toothed...................cc0ecceeeese 2 
Stamens 2, with anthers, posterior pair sterile or wanting..................e0ceeeece 3 
** Corolla bilabiate: stamens 4. 
Flowers capitate: calyx equally 5-toothed: stamens distinct, straight. 
Upper lip of corolla entire or merely-notched...............0... ccc ceecavcees 4 
Upper lip 2-cleft: stamens exserted........ 0... cece cece cee cee eee eoece -. & 
Flowers solitary or in clusters, axillary: curved stamens all perfect. 
Flowers small, white or purple: not 4 in. long............--...05 es eabe ee aoe © 
Flowers over an inch long, orange; peduncles bracteate............0. 2.0. ceaee 7 
Flowers in oblong heads or interrupted spikes, blue or purple...................0005 8 
Flowers in axillary clusters, rose and white: upper anthers imperfect................ 9 
Flowers with white or purplish corolla an inch long: stamens perfect...............+ 10 
§3. Stamens 2, the upper pair rudimentary or wanting: anthers 1-celled or with 2 cells 
widely separated on the ends of a filament-like connective: flowers in dense terminal 
heads or globose whorls (except sp. 8 o? No. Im. 
Cornective versatile upon the short filament. Leaves pinnatifid................... 11 
