822 labiatjb. (mint family.) 



2. N. Glechoma, Bentll. Stem prostrate or creeping, pubescent ; have* 

 round-cordate, obtuse, serrate, petioled; whorls in nearly all the txils, i\ w 

 flowered; corolla blue. — Low shady places, near dwellings. Introduced. — 

 Stem 4'- 12' long. Leaves J* - 1' long. Anthers forming a cross. 



18. CEDRONELLA, Mceoch. 



Calyx hell-shaped, nearly equally 5-toothed ; the mouth oblique. Corolla 

 dilated at the throat, 2-lipped ; the upper lip straight, 2-cleft, the lower 3-cleft, 

 with the middle Jobo largest. Stamens 4, ascending, the upper pair longest 

 anther-cells parallel. Nutlets smooth. — Flowers in a terminal spike or raceme. 



1. C. cordata, Benth. Stem low, pubescent, bearing long runners ; leaves 

 long-pctioled, cordate, crenate, smoothish; the floral ones ovate; raceme few- 

 flowered, 1-sided; cymes 1 -3-flowercd ; calyx and pale-bine corolla large. 

 (I)racoeephalumcordatum, Nutt.) — Shady banks, on the mountains of North 

 Carolina. May and June. — Stem \° high, creeping at the base. Leaved I' 

 long. Corolla l.V long. Plant pleasant-scented. 



19. BRUNELLA, Tourn. Self-heal. 



Calyx tubular-bcll-shaped, 10-nervcd, flat above, 2-lipped ; upper lip broad, 

 truncated, 3-toothed, the lower 2-cleft. Corolla-tul>e slightly inflated under the 

 throat, 2-lippcd; the upper lip roundish, arching, entire, the lower 3-.lohcd, 

 with the middle lobe rounded, concave, crenate. Stamens 4, exserted. the 

 smooth filament prolonged ahove the anther : anther-cells spreading. — Herbs, 

 with 6-flowercd densely-spiked whorls. Floral leaves orbicular, imbricated, 

 persistent. 



1. B. vulgaris, L. Pubescent or smoothish; stem erect, mostly simple ; 

 leaves ovate or ohlong, serrate, petioled ; spikes oolong or cylindrical ; flowers 

 purple. — Low grounds, Florida, and northward. Introduced. — Stem 6' -12' 

 high. Spikes thick, lateral and terminal. 



20. SCUTELLARIA, L. SkullcaA 



Calyx hell-shaped, 2-lipped, entire and closed after flowering; the upper lip 

 furnished with a helmet-shaped appendage on the back, and falling away at 

 maturity, the lower persistent. Corolla-tube recurved-ascending, dilated at the 

 throat, 2-lipped ; the upper lip arching, entire or notched, with the small lateral 

 lobes united with its sides, the lowest lobe large and spreading- Stamens 4, 

 ascending: anthers ciliate, approximate by pairs, those on the shorter filaments 

 1 -celled, on the longer ones 2-cellcd, cordate. — Perennial mostly inodorous 

 herbs. Flower* opposite, solitary, in the axils of the upper, mostly bract-like 

 leaves, rarely in lateral racemes. Corolla blue or white. 



* Flowers in terminal racemes. 

 *- Leaves cordate, orate or oUong, en note, petioled j the floral oiks shorter than the 



jlmri rs, entire. 



1. S. versicolor, Nutt Softly pubescent; stem stout, branched above; 



[< :ivcs large, long petioled, all broadly cordate, rugose and reticulate; the flora] 



