1012 VERBENACEAE 
ing: leaves opposite, commonly clustered in the axils ; blades linear-cuneate, 1-3 m. long, 
incisely 2-8-toothed above the middle, nearly nerveless except the prominent midrib, ses- 
sile: peduncles shorter than the subtending leaves or slightly longer: bracts 3-4 mm. 
long, apiculate, with wing-like shoulders at top: calyx 3 mm. long, pubescent: corolla 
purplish or whitish, 4 mm. long, glabrous; tube slightly surpassing the calyx ; lower lip 
of limb about as long as the tube: fruit oval, about 1.5 mm. long. [Lippia cuneifolia Torr. ] 
In dry soil, Wyoming to Nebraska, south to Texas and Arizona. 
2. PhylaincisaSmall. Foliage strigillose-canescent. Stems branching at the base ; 
branches spreading or prostrate, often creeping, simple or branched: leaves opposite, some 
often clustered in the axils; blades linear-cuneate, 1-3.5 cm. long, incisely 2-8-toothed 
above the middle, nerveless except the prominent midrib : peduncles at least twice as long as 
the subtending bracts: heads subglobose, becoming cylindric, 1-2 cm. long: bracts rhom- 
boidal, 2 mm. long, acute, ciliolate : calyx barely 2 mm. long, puberulent : corolla white 
or bluish, 2.5-3 mm. long ; tube becoming funnelform ; lower lip with a middle lobe some- 
what larger than the lateral ones: fruit broadly obovoid, 1.5-2 mm. long. 
In sand, Texas. 
3. Phyla nodiflóra (L.) Greene. Foliage strigillose. Stems branched at the base ; 
branches prostrate, creeping, 2-7 dm. long, more or less branched : leaves opposite, some 
commonly clustered ; blades spatulate, 1-3 em. long, serrate from above the middle to 
apex, nearly sessile or short-petioled : peduncles much longer than the subtending bracts : 
spikes becoming cylindric, 1 cm. long, 5 mm. thick: bracts flabellate, 1.5-2 mm. long, 
often 3 mm. broad, apiculate: calyx puberulent, 2 mm. long: corolla purple to white, 2 
mm. long: fruit obovoid, 1 mm. long. [Lippia nodiflora L.] 
In sandy soil, Georgia to Florida. 
4. Phyla lanceolata ( Michx. ) Greene. Foliage strigillose. Stems commonly branched 
at the base; branches procumbent, creeping, 1-4 dm. long, simple or branching: leaves 
opposite, some occasionally clustered in the axils; blades elliptic-lanceolate, 1.5—5 cm. 
long, acute, sharply serrate, except the cuneate base, short-petioled, the nerves ending in 
the sinuses : peduncles longer than the subtending leaves: heads globular, becoming cylin- 
dric, 9-15 mm. long at maturity : bracts rhombic, 2-3 mm. long, acute: calyx about 2 mm. 
long: corolla pale blue, 2-2.5 mm. long: fruit 1-1.5 mm. long. 
4. LIPPIA L. 
Shrubs or shrubby plants, more or less aromatic. Leaves opposite: blades usually 
toothed. Flowers in short-peduncled axillary congested spikes, each subtended by a per- 
sistent imbricated bract of an acute or lanceolate type, in several series. Calyx 2-lobed, 
compressed and keeled. Corolla much longer than the calyx: tube incurved, not swollen ; 
limb 2-lipped. Stamens 4, didynamous. Ovary 2-celled, with 1 ovule in each cavity. 
Fruit separating into 2 nutlets. ; 
1. Lippia geminata H.B.K. Perennial, minutely pubescent. Stems 4-9 dm. tall: 
leaf-blades ovate to oblong-ovate, 1.5-4 cm. long, acute, serrate, with nerves impressed 
above, canescent beneath, abruptly narrowed or truncate at the base ; petioles shorter than 
the blades : peduncles mostly solitary, somewhat longer than the subtending petioles : bracts 
ovate-lanceolate, acuminate, 3-5 mm. long, ciliate: calyx 1.5 mm. long, villous-hirsute : 
corolla purple or violet, about 4 mm. long ; tube minutely hirsute above the middle; lim 
about 2.5 mm. high, the lower lip much the largest. 
In low grounds, southern Texas and tropical America. 
5. GONIOSTÁCHYUM Small. i 
Shrubs or shrubby plants, mostly aromatic. Leaves opposite : blades mostly pag eee 
Flowers in peduncled axillary congested spikes, which are often in pairs. Bracts ge 
4-ranked, carinate-conduplicate, persistent. Calyx 2-lobed, compressed and ge : 
keeled. Corolla surpassing the calyx: tube abruptly swollen near the middle ; limb 4- 
lipped. Ovary 2-celled, with 1 ovule in each cavity. Fruit separating into 2 gape 
1. Goniostachyum gravéolens (H.B.K.) Small. A branching shrub 2 kon 
tall, with finely pubescent foliage. Leaf-blades oblong-ovate to ovate, 1-3 "~ aie 
rounded at the apex, finely crenate, rugose, scabrous above, rounded or subcordate r pac : 
petioles much shorter than blades : peduncles 3-6 at an axil, shorter than subtending 9 e. 
bracts imbricated, ovate or hastate, 3 mm. long, longer than calyx, acute: caly is 4 ni 
long ; lobes triangular, much shorter than the tube : corolla yellowish white, abou * et 
long, puberulent ; tube swollen above the middle ; limb 2.5-3 mm. broad, the lobes crisped. 
\ {Lippia graveolens H.B.K.] 
In dry soil. Texas near the Rio Grande to Mexico. 
