LAMIACEAE 1039 
pubescent, the upper lip oblong-lanceolate, the lower lip 3-lobed, its middle lobe linear- 
oblong, notched : filaments and style glabrous: nutlets about 1 mm. long. 
In dry woods and thickets, Massachusetts to Wisconsin, middle Georgia and Missouri. Summer. 
2. Blephilia hirsüta (Pursh) Torr. Stems hirsute or villous-hirsute, giving off 
numerous runners with ovate leaf-blades in spring, 3-10 dm. tall: leaf-blades ovate to 
lanceolate, 5-12 cm. long, acute or acuminate, serrate, rounded or subcordate at base: 
heads about 2 cm. thick: calyx 6-8 mm. long ; tube delicately ribbed, the upper lip with 
3 subulate bearded lobes, the lower lip with 2 lobes, their bases ovate, subulate-tipped : 
corolla pale, about 1 cm. long, pubescent ; tube curved, the upper lip lanceolate, the lower 
lip 3-lobed, its lateral lobes rounded, its middle lobe linear, usually notched : nutlets 1 
mm. long. 
In shaded ground or copses, Vermont to Wisconsin, Georgia and Texas. Summer. 
25. HEDEOMA Pers. 
Annual or perennial herbs, usually strongly aromatic and pungent. Leaves opposite, 
often small: blades entire or sparingly toothed. Flowers in remote or contiguous axillary 
clusters. Calyx pubescent in the more or less constricted throat : tube 13-ribbed, com- 
monly gibbous at the base, with 5 nearly equal lobes, or 2-lipped. Corolla blue or pur- 
ple: tube but little enlarged below the lips: upper lip erect, entire to 2-lobed : lower lip 
spreading, 3-lobed. Stamens 4, or usually only 2 fertile: filaments 4, 2 usually sterile, 
much reduced or wanting. , Nutlets smooth. 
Calyx strongly 2-lipped, with the lobes of the two lips very dissimilar: filaments of posterior stamens 
manifest. 1. H. pulegioides. 
Calyx with similar or nearly similar lobes: filaments of posterior stamens rudi- 
mentary or obsolete. 
Calyx-lobes of both lips about equal in length. 
Calyx-lobes 14 as long as the tube: corolla about twice as long as the calyx. 2. H. acinoides. 
Calyx-lobes 15 as long as the tube: corolla barely as long as the calyx. 3. H. hispida. 
Calyx-lobes of the 2 lips unequal in length, those of the lower much longer than 
those of the upper. 
Calyx-tube barely if at all swollen at the base. 4. H. Drummond. 
Calyx-tube manifestly swollen at the base. 
Calyx 5-6 mm. long. . 
Leaf about equalling the calyx it subtends or surpassed by it. 
Braets petioled: calyx coarsely pubescent. 5. H. serpyllifolia. 
Bracts sessile: calyx finely pubescent. 6. H. nana. 
Leaf surpassing the calyx it subtends. 7. H. sancta. 
Calyx 7-8 mm. long. re 
Stems or branches branched throughout: calyx minutely hispid. 8. H. lata. 
Stems or branches simple above the base: calyx copiously bristly hispid. 9. H. Reverchonit. 
1. Hedeoma pulegioides (L.) Pers. Annual, finely pubescent. Stems erect, 1-4 
dm. tall, more or less bushy-branched : leaf-blades oval-elliptic or oblong, 1-2 cm. long, 
obtuse, sparingly serrate: clusters loosely flowered, separated : calyx strongly ribbed, 3-4 
mm. long; tube stout, gibbous at base, the three upper lobes triangular or triangular-ovate, 
acute, the two lower lobes subulate, ciliate: corolla 4-5 mm. long; lips nearly equal, with 
blunt teeth : filaments and style glabrous: nutlets oval, nearly 1 mm. long. 
In dry soil, Cape Breton Island to Ontario, Minnesota, Florida and Nebraska. Summer. 
2. Hedeoma acinoides Scheele. Annual, minutely pubescent. Stems erect, 1-2 
dm. tall, or branched at the base, the branches ascending : leaf-blades oval to oblong, 1-1.5 
cm. long, obtuse, slightly serrate or nearly entire: clusters aggregated into terminal 
raceme-like panicles: calyx 5-6 mm. long, minutely pubescent, slightly enlarged at base 
but not gibbous ; tube slender; lobes nearly equal, subulate-lanceolate : corolla 7-8 mm. 
long; tube finely pubescent, nearly filiform, the upper lip oblong, usually minutely 
notched at the apex, the lower lip 3-lobed, its middle lobe nearly oblong, notched, lateral 
lobes ovate, rounded : filaments and style glabrous: nutlets 0.8 mm. long. . 
On plains or prairies, Arkansas and Texas. Spring and summer. 
3. Hedeoma hispida Pursh. Annual, hirsute. Stems erect, 0.5-3 dm. tall, simple 
or branching: leaf-blades linear, thickish, acutish, entire or nearly so, 1-3 cm. long, sessile 
or very short-petioled : clusters numerous, contiguous or separated below: calyx hirsute, 
4-5 mm. long, the three upper lobes linear-subulate, the lower lobes subulate, ciliate : 
corolla about 7 mm. long, nearly glabrous ; tube gradually dilated, the upper lip sub- 
orbicular, notched, the lower lip 3-lobed, the middle lobe nearly as broad as long, retuse : 
filaments and style glabrous : nutlets oblong, 1 mm. long. 
On dry plains, Northwest Territory to Illinois, Louisiana and Colorado. Spring and summer. 
4. Hedeoma Drummóndii Benth. Annual or perennial, minutely cinereous-pubes- 
cent. Stems erect, or assurgent, often diffusely branched, 1-4 dm. long: leaf-blades linear, 
oblong ‘or oval at the base of the stem, thickish, 0.5-1 cm. long, obtuse, entire, sessile or 
