LAMIACEAE 1149 
0.5-1.5 em. long: ealyx beeoming 5-6 mm. long; corolla deep-blue, 6-8 mm. 
long: nutlets 1.5 mm. long.—Scrub, Fla.—Spr. 
3. ISANTHUS Michx. Annual herbs. Leaf-blades entire or sparingly 
toothed. Flowers in axillary cymes. Calyx nearly regular. Corolla nearly 
regular, the lobes spreading. Stamens 
slightly ascending ——One species. 
1. I. brachiatus (L.) B.S.P. Plant 1-4 
dm. tall, viseid- PRU. leaf-blades ellip- 
ie to linear-e elliptic, 1-4 em. long: calyx 
becoming 5-6 mm. long; lobes lanceolate to 
a blue; 
5 : 
s acts after the manner of a es 
taking almost complete possession of 
cently abandoned fields, especially on d 
hillsides 
4. SCUTELLARIA L. Annual or perennial herbs or shrubby plants. 
Leaf-blades entire or toothed. SONT ers axillary or in racemes, variously colored, 
blue, violet, or white i species. Calyx 2-lipped, the upper lip crested. 
orolla with a long ea rs 2- me the upper lip arching.—About 100 
species, widely distributed.—SKULLCAPS. HELMET-FLOWERS 
Nutlets wingless, on a low gyn obase. 
Flowers in axillary, secund racemes, I, LATERIFLORAE. 
Flowers solitary in the axils or in ‘terminal panicles. 
Flowers solitary in the axils of the upper leaves, ap- 
pearing raceme-like, but each pedicel bearing two 
bractlets pO its base. II. AMBIGUAE. 
Flowers in terminal or axillary panicle 
eaf-blades above the middle of the stem cordate. III. CORDATAE. 
Leaf-blades above the middle x E ay abruptly 
or gradually narrowed a e bas 
Leaves all with toothed P get IV. SERRATAE. 
Leaves all, or those above the middle of stem 
with entire blades. V. INTEGRIFOLIAE. 
Nutlets membrano winged, on a slender gynobase. VI. NERVOSAE. 
I. LATERIFLORAE 
xi eod DE with long axillary racemes of very small 
1l. S. lateriflora. 
II. AMBIGU 
Leaf-blades mainly toothed, lanceolate, uu corolla 
.0-2 cm. long. 2. S. epilobifolia. 
Leaf-blades main n entire, ovate or  ovate-lanceolate: 
corolla less t .) em. lon 
Leaf-blades an distinctly Betioleda roots fibrous 8. S. havanensis. 
Leaf-blades (ex basal ones) all sessile or nearly 
SO: roo ae EOD CROUE- thickened. 
SC SEIRDEOUS or puberulent: leaf-blades often revo- 4. S. ambigua. 
stem densely and softly glandular-pubescent: leaf- l 
blades usually flat. -5. S. parvula. 
III. CORDATAE 
Foliage, bed al the internodes of the stem and in- 
flor cence, copiously pubescent. 
1 AME by Edward Johnston Alexander. 
