LAMIACEAE 1171 
rounded, the lateral dui of the lower lip broadly ovate: o less than 1 mm. 
long.— ( b — Thicket 
LD-M M. ets, Md E and fie various provinces, 
. C. to ., and Mass. Nat. is — Sum.—-A related Ola World plant and 
similar in habit, Majorana Majorana—the Sw EE oo of the panne 
T- 
with a 2-lipped “calyx, sometimes m from eultivatio 
32. THYMUS [Tourn.] L. Perennial depressed or creeping herbs. Leaf- 
blades short, mostly entire. Flowers in axillary cymes or raceme-like panieles. 
Calyx 2-lipped, the iod lip with 3 short 
lobes, the lower lip with 2 longer lobes. 
Corolla 2-lipped: upper lip erect: lower lip 
id 
—About 50 species, mostly European. 
1. T. Serpylum L. Plant fragrant, form- 
ing depressed mats: ae E oa a bs 
m or ovate, 3-10 m ong: s bee 
3.5-4 m crs UM nri. 
D as long as the "as corolla ELTE h, 
eae i long as the a nutlets less than 
l m ng.—(CREEPING-THYME. HYME 
Meadows, aa and fields, various provinces N of Coastal Plain, N. C. 
to W. Va. and N.S. Nat of E Sum. 
33. KOELLIA Moench. Perennial erect herbs. Leaf-blades entire or 
shallowly toothed, those of the upper leaves, like the bracts, often more or less 
whitened. owers in dense axillary and terminal cymes, pale with 1 
spots. Calyx nearly regular or somewhat 2-lipped, the lobes or or elongate. 
MINTS. HORSE-MINTS. BASILS 2 e 20 speeies, North American. 
ros ee apparently naked, the bracts small and incon- 
spic 
Elowerensténs conspicuously bracted. 
o not 2-lpped, lobes equal or nearly so. . 
much eaceeding the calyx: calyx-lobes not aris- 
I. NUDAE. 
3 LANCEOLATAE, 
orolla about as long as the calyx: calyx-lobes aristate. III ARISTATAE. 
Calyx somewhat 2-lipped, the three upper lobes partly united. IV. INCANAE. 
I. Nup 
Stem strict, topped by a corymb-like cyme: Po clusters 
perma nently mall. 1. K. nuda. 
IT. LANCEOLATAE 
Bractlets ciliolate. 
Calyx-lobes triangular or ovate-triangular. 2. K. virginiana, 
Ca p lobes subulate to lanceolate, triangular-lanceo- 
late, or deltoid. 
Leaf- p: EUN > most of them over 3 times as long 
Wenge with strictly entire blades 3. K. flexuosa. 
Leaves, or the larger ones, with toothed blades. 
lower- oo -2 cm. broad at maturity, 
act. 
Flower- A T conspicuously woolly at 
aturity: stems copiously pubes- 
een t 
Calyx-lobes acute: an blades firm; 
Species campestri 4. K. pilosa. 
