1046 LAMIACEAE 
2. Koellia Virginiana (L.) Britton. Stems minutely pubescent, 4-9 dm. tall, 
branched above: leaf-blades lanceolate or linear-lanceolate, 2-5 cm. long, acute, mostly 
entire, sessile or nearly so: clusters 8-10 mm. in diameter: bracts linear-lanceolate to nar- 
rowly linear: calyx 3.5-4 mm. long, finely pubescent ; lobes triangular, acute, about 4 as 
long as the tube: corolla 6-7 mm. long, the upper lip ovate, notched, the lobes of the lower 
lip oblong or ovate. [Pyenanthemum lanceolatum Pursh. ] 
In dry soil, often in thickets, Quebec and Ontario to Minnesota, Georgia, Alabama and Nebraska. 
Summer and fall. 
3. Koellia flexuósa (Walt.) MacM. Stems slender, glabrous, solitary or tufted, 3-8 
dm. tall, branched above: leaf-blades narrowly linear to linear-filiform, 1-4 cm. long, 
acute, entire, sessile : clusters dense, 6-8 mm. in diameter: bracts lanceolate, acuminate : 
calyx 3.5 mm. long, woolly ; lobes triangular-lanceolate, somewhat acuminate: corolla 
pink or white, 6-7 mm. long, pubescent within and without, the upper lip ovate, minutely 
notched, magenta-spotted, the lower lip 3-lobed, its middle lobe longer and narrower than 
the lateral lobes. [Pycnanthemum linifolium Pursh. ] 
In dry soil, mostly in meadows or thickets, Ontario to Minnesota, Massachusetts, Florida and 
Texas. Summer and fall. 
4. Koellia pilósa (Nutt. ) Britton. Stems densely somewhat cinereous-pubescent, 4-13 
dm. tall, often branched above: leaf-blades lanceolate to linear-lanceolate, 2-6 cm. long, 
acute, sessileor nearly so: clusters 1-1.5 cm. thick : bracts about as long as the calyx, densely 
pubescent: calyx 4-5 mm. long, minutely pubescent : lobes lanceolate, acute, about 4 as 
long as the tube: corolla 7-8 mm. long, minutely pubescent, the upper lip oblong-ovate, 
the lower lip with ovate lateral lobes and a linear-oblong middle lobe: filaments and style 
glabrous. 
On prairies and in dry woods, Ohio to Missouri, Georgia and Arkansas. Summer and fall. 
5. Koellia léptodon (A. Gray) Small. Stems softly pubescent, or glabrate below, 
5-11 dm. tall, loosely branched : leaf-blades lanceolate to oblong-lanceolate, 2-5 cm. long, 
acute, shallowly serrate or entire: clusters 1-2 cm. thick: bracts mostly shorter than the 
calyx, densely pubescent: calyx 5-5.5 mm. long, rather villous ; lobes lanceolate, acumi- 
nate, about } as long as the tube, conspicuously hairy : corolla about 7 mm. long, minutely 
pubescent, the upper lip ovate, the lower lip with rounded lateral lobes and an oblong 
middle lobe : filaments and style glabrous. [ Pycnanthemum pilosum var. ? leptodon A. Gray. } 
In woods, mountains of North Carolina. Summer. 
6. Koellia verticillàta (Michx.) Kuntze. Stems minutely pubescent, deep green, 3-12 
dm. tall, more or less branched : leaf-blades lanceolate to almost linear, 2-6 cm. long, acute, 
remotely or shallowly serrate, ciliolate, sessile : clusters dense, 1-2 cm. thick: bracts lanceo- 
late to linear: calyx 4-5 mm. long, puberulent ; lobes subulate-lanceolate, ciliolate, 4 as 
long as the tube: corolla pink or pinkish, 7-8 mm. long, the upper lip oblong, bearded at 
the apex, the lower lip spotted with garnet, its 3 lobes obtuse. 
.. In open woods and thickets, Rhode Island to Missouri and Georgia. Summer and fall.—The form 
with narrow leaf-blades, K. Torreyi (Pursh) Kuntze. is probably distinct. 
7. Koellia clinopodioides (T. & G.) Kuntze. Stems softly pubescent, 4-12 dm. 
tall, often widely branching: leaf-blades lanceolate, narrowly oblong or elliptic, 2-8 cm. 
long, acute, more or less distinctly serrate, narrowed into petioles: clusters rather loose, 
2-3 cm. thick: calyx 4 mm. long ; tube ribbed ; lobes lanceolate-subulate, nearly 3 as long 
as the tube: corolla pink or purplish, 6 mm. long ; tube surpassing the calyx, the Fo 
lip oblong, minutely pubescent, the lower lip with the middle lobe undulate, broadene 
above the middle, twice as long as lateral lobes. 
In dry open woods, New York to Pennsylvania, Virginia and Tennessee. Summer. 
8. Koellia mitica (Michx.) Britton. Stems finely pubescent, densely so above, ne 
dm. tall, branching: leaf-blades ovate to lanceolate, 2-6 dm. long, acute, more isi i 
distinctly toothed, sessile or very short-petioled, the upper mealy pubescent: ¢ is p 
dense, 1-1.5 cm. thick: bracts narrow, ciliate: calyx 3.5-4 mm. long, finely pubescen ae 
puberulent in age ; lobes triangular or lanceolate-triangular, 4 as long as the tube: ce EA 
pink or purplish, about 8 mm. long, the upper lip orbicular-ovate, notched, or somet! 
all the lobes obtuse : nutlets fully 1 mm. long. 
In sandy soil, Maine to Missouri and Florida. Summer and fall. 
9. Koellia montàna (Michx.) Kuntze. Stems glabrous or nearly so, 3-9 de 
branched : leaf-blades thinnish, lanceolate, oblong- or ovate-lanceolate, acute or BEGUN. 
sharply serrate, gradually or abruptly narrowed into short petioles: clusters mere 
dense, 1-2.5 cm. thick: bracts linear or lanceolate, ciliate: calyx 4-5 mm. oie scrolla 
lanceolate, acute, branched at the apex, at least when young, } as long as the tube: e 
