LAMIACEAE 1041 
bracts subulate, bristly : calyx purplish, becoming 6-7 mm. long, bristly-hispid ; tube 15- 
ribbed ; lobes subulate, about equal in length, finally converging: corolla slightly surpass- 
ing the calyx, rose-purple, 8-10 mm. long ; tube not exserted, hairy in the throat ; upper 
lip notched, the lower lip 3-lobed : sterile filament wanting: nutlets barely 1 mm. long. 
In sandy soil, Texas. Spring and summer. 
2. Stachydeoma gravéolens (Chapm.) Small. Perennial, hirsute. Stems 2-6 dm. 
tall, simple or branched: leaf-blades ovate to suborbicular, 1-1.5 cm. long, sparingly 
toothed, truncate or subcordate at base, sessile or very short-petioled : panicles elongated, 
leafy-bracted : calyx becoming about 5 mm. long: tube 12-13-ribbed, the upper lip with 
deltoid lobes, the lower lip with subulate lobes: corolla purple, spotted, 6-8 mm. long ; 
tube about equaling the longer calyx-lobes, the upper lip truncate, often undulate, the lower 
lip with a notched middle lobe: sterile filaments present: nutlets 0.5 mm. long. 
In low pine lands, Florida. Summer. 
27. MELISSA L. 
Perennial herbs, with branching stems. Leaves opposite: blades flat, broad, usually 
toothed. Flowers in axillary, often one-sided clusters. Calyx reflexed at maturity, 2- 
lipped : tube 13-ribbed, nearly glabrous in the throat : upper lip with 3 short lobes: lower 
lip with 2 longer lobes. Corolla white or yellowish, surpassing the calyx, 2-lipped : tube 
curved, glabrous within: upper lip nearly erect, entire or notched: lower lip 3-lobed, 
spreading. Stamens 4: anthers 2-celled ; sacs diverging. Nutlets smooth. BEE-BALM. 
1. Melissa officinalis L. Perennial, very softly hirsute, lemon-scented. Stems erect 
or much branched and spreading, 3-6 dm. long: leaf-blades ovate to ovate-oblong, 2-8 cm. 
long, crenate-serrate, ciliate, rounded or subcordate at base or sometimes acute: flower- 
clusters leafy-bracted: calyx ringent, 8 mm. long, hairy within and without; tube flat 
above, sharply ribbed, the upper lip with upeurved lobes, the lower lip with 2 narrower 
converging lobes: corolla white or cream-colored, about 1 cm. long, the upper lip inflated, 
cleft at the apex, its segments recurved, the lower lip drooping, with a suborbicular middle 
lobe, bearded especially near the base. 
In waste places and copses, Maine to Ohio and Florida. Summer. LEMON-BALM. 
28. CONRADINA A. Gray. 
Shrubs of low habit, with pubescent foliage. Leaves opposite, approximate or clustered : 
blades narrow, entire, often revolute. Flowers in loose axillary clusters. Calyx declined 
at maturity: tube 13-nerved, 2-lipped: upper lip of 3 short lobes: lower lip of 2 longer 
narrow lobes. Corolla purplish, surpassing the calyx, 2-lipped : upper lip erect, retuse : 
lower lip spreading, 3-lobed : middle lobe notched. Stamens 4: anthers 2-celled; sacs 
awnless, parallel. Nutlets smooth. 
Foliage canescent: leaves less than 1 em. long: upper lip of the corolla rounded. 1. C. canescens. 
Foliage puberulent: leaves over 1 cm. long: upper lip of the corolla retuse. 2. C. puberula. 
1. Conradina canéscens (T. & G.) A. Gray. A much branched shrub, 2-4 dm. tall, 
the foliage finely canescent: leaves very numerous, often clustered in axils; blades linear, 
5-9 mm. long, obtuse, entire, strongly revolute, sessile: clusters 2-6-flowered : pedicels 1-2 
mm. long: calyx about 5 mm. long, villous, prominently ridged, the upper lip with 3 
acute or mucronate recurved lobes, the lower thee lanceolate-subulate, all ciliate: corolla 
about 1.5 em. long ; tube nearly as long as the calyx, the upper lip orbicular-ovate, obtuse, 
the lower lip 3-lobed, its lateral lobes oblong or oblong-obovate, its middle lobe broader 
than long, truncate at apex : nutlets about 1 mm. long. 
In sand on the west coast of Florida and Alabama. Spring and summer. 
. 2. Conradina pubérula Small. A much branched shrub, 3-7 dm. tall, the foliage 
cinereous-puberulent : leaves numerous, often clustered in axils; blades narrowly linear, 
12-25 mm. long, obtuse, entire, strongly revolute, sessile: clusters 2-6-flowered, often form- 
ing a continuous panicle: pedicels commonly 1-2 mm. long: calyx 5-6 mm. long, puberu- 
lent: tube slightly ribbed, the upper lip with 3 ovate or ovate-lanceolate acute ascending 
lobes, the lower lip with 2 lanceolate-subulate lobes: corolla 12-15 mm. long ; tube as long 
as the calyx or nearly so, the upper lip retuse, the lower lip 3-lobed, the lateral lobes 
rounded, the middle lobe cuneate-flabellate, deeply notched: nutlets 1 mm. long, globose- 
oval, smooth and glabrous. 
In sand, Florida. Spring and summer. 
66 
