1040 LAMIACEAE 
very short-petioled: clusters often numerous: pedicel at least j as long as calyx : calyx 
tubular, 6-7 mm. long ; tube hispidulous, barely if at all swollen at maturity, the lobes of 
lower lip about twice as long as those of the upper lip: corolla pinkish, about 1 cm. long : 
nutlets about 1.5 mm. long. 
On prairies, Texas. Summer. 
5. Hedeoma serpyllifólia Small. Perennial, softly hirsute. Stems tufted, ascend- 
ing or decumbent, 1-2 dm. long, considerably branched, rather woody : leaf-blades oval to 
oblong, 5-8 mm. long, obtuse, softly pubescent, entire, manifestly petioled : clusters 2-4- 
flowered : pedicel shorter than the calyx : calyx 5-6 mm. long, hirsute ; tube slightly con- 
stricted above the middle, finely ribbed ; lobes subulate, the lower twice as long as the 
upper: corolla pinkish, 5 mm. long, only slightly longer than calyx ; tube dilated above 
the middle, minutely pubescent, the upper lip rounded, minutely notched, smaller than 
lobes of the lower lip, its middle lobe larger than the others, deeply notched: nutlets 1 
mm. long, puberulent. 
Indry soil, Texas. Spring. 
6. Hedeoma nàna (Torr.) Greene. Annual or perennial, puberulent or canescent- 
hirsute, the hairs gray. Stems erect, more or less diflusely branched, the branches stiff : 
leaf-blades oblong to ovate, 5-12 mm. long, entire or barely toothed, nearly sessile: calyx 
4-6 mm. long, hispidulous, surpassing the leaves, especially above ; tube swollen, consider- 
ably so at maturity, the lobes of the lower lip between twice and thrice as long as those of 
the upper : corolla 6-7 mm. long ; tube slender, the upper lip and middle lobe of the lower 
lip notched, other lobes obtuse: nutlets 1.2-1.3 mm. long. [H. thymoides A. Gray.) 
On plains or prairies, Texas to Arizona. Summer. 
7. Hedeoma sáncta Small. Annual or biennial, finely cinereous-pubescent. Stems 
erect, 1-3 dm. tall, somewhat branched, rather slender: leaf-blades oval, oblong or nar- 
rowly oblong, 1-1.5 em. long, entire, slightly revolute, very short-petioled : calyx 5-6 
mm. long, hispidulous, surpassed by the leaves; tube somewhat swollen, the lobes of the 
lower lip about twice as long as those of the upper: corolla 4-5 mm. long, puberulent ; 
tube slender, the upper lip and middle lobe of the lower lip truncate or barely emarginate, 
the other lobes rounded : nutlets fully 1 mm. long. 
In dry soil, Texas. Spring. 
8. Hedeoma làta Small. Perennial, firm, finely hirsute. Stems 1-3 dm. tall, re- 
peatedly branched above: leaf-blades oblong to linear-oblong, 1-1.5 cm. long, obtuse or 
acutish, closely pubescent, sessile or nearly so: calyx 7-9 mm. long, finely hirsute ; tube 
constricted or bent on the back near the throat ; lobes subulate, the lower about twice as 
long as the upper: corolla 10-12 mm. long, minutely pubescent, considerabiy longer 
than the calyx : nutlets fully 1 mm. long. 
On rocky prairies, Texas and New Mexico. Spring to fall. 
9. Hedeoma Reverchónii A. Gray. Perennial, rigid, finely hirsute. Stems tufted, 
erect or ascending, 1-2 dm. tall, simple, softly pubescent : leaf-blades leathery, oblong or 
nearly so, 5-15 mm. long, obtuse, entire, finely pubescent, very short-petioled : calyx 8-10 
mm. long, conspicuously bristly hispid ; tube constricted on the back above the middle ; lobes 
subulate, the lower twice as long as the upper: corolla 13-15 mm. long, minutely rend 
cent, nearly twice as long as calyx; tube gradually dilated, the upper lip ovate, du J 
notched, the lower lip 3-lobed, its middle lobe deeply notched : filaments and style gla- 
brous : nutlets nearly 1.5 mm. long, granular. 
In rocky soil, middle Texas. Summer. 
26. STACHYDEÒMA Small. ; 
Annual or perennial caulescent pubescent herbs. Leaves opposite : blades entire or 
shallowly toothed, sessile or nearly so, the upper at least hirsute-ciliate. Flowers in ter- 
minal continuous or slightly interrupted spike-like panicles. Bracts narrow or subulate. 
Calyx short-pedicelled, hirsute: tube not gibbous: lobes subulate or setaceous. Corolla 
pink or purple, the throat with a pair of longitudinal projecting folds under the lower lip 
Style pubescent. Nutlets nearly smooth. 
Spike-like inflorescence continuous, abbreviated : leaf-blades entire; plants annual : in preg 
Spike-like inflorescence interrupted below, elongated: leaf-blades toothed: plants 
perennial: Floridian species. 
1. Stachydeoma ciliata (Benth.) Small. Annual, puberulent, and hirsute cates 
Stems 1-3 dm. tall, branching above: leaf-blades oblong to oblong-ovate, E cm. er ie 
acutish, slightly toothed, sessile : clusters aggregated into terminal panicles, 1-2 cm. 
2. S. graveolens. 
