3S4 LABIAT.E. (MINT FAMILY.) 



cjilvx ti'i'tli lauicolate-subulate ; corolla small, white. — Waste grouuds. lu- 

 troilmecl. — Stem 2° - 3° high. 



'2. N. Glechoma, Henth. Stem prostrate or creeping, pubescent ; leaves 

 rounil-conlaic, iilitiisc, serrate ; whorls in nearly all tiie axils, few-flowered ; 

 corolla hluu. — Low shady places, near dwdlinj;*. Introduced. — Stem 4' - 12" 

 long. Leaves ^'- r long. Anthers forming a cross. 



20. CEDRONELLA, .M.ench. 



Calyx liell-shapod, nearly eiiually ."j-loothed ; the mouth ohli<iue. Corolla 

 dilated at the throat, 2-lippe(l ; the nj)per lip .straight, 2-cleft, the lower 3-cleft, 

 with the midflle loi>e largest Stamens 4, ascending, the upper pair longest: 

 anther cells ]>arallel. Nutlets smooth. — Flowers in a terminal sj)ike or 

 raceme. 



1. C. COrdata, Benth. stem low, pubescent, stoloniferous ; leaves long- 

 petioled, cordate, creiiale, smoothish ; the tloral ones ovate ; raceme few- 

 flowered, 1-sided ; cymes 1 -3-flowered ; calyx and pale blue corolla large. — 

 Shady banks, on the mountains of North Carolina. May -June. — Stem G' 

 high, creeping at the base. Leaves 1' long. Corolla 1^' long. I'laut pleas- 

 ant-scented. 



21. BRUNELLA, Tourn. Self-heal. 



Calyx tubular-bell-shaped, 10-nerved, 2-lipped ; upper lip broad, truncated, 

 3-toothed, the lower 2-c)eft. Corolla 2-lipped ; the upper lip roundish, entire, 

 the lower 3-lobed, with the middle lobe rounded, concave, crenate. Stamens 4, 

 exserted, the smooth filament prolonged above the anther : anther cells spread- 

 ing. — Herbs, with 6-flowered densely -spiked whorls. Floral leaves orbicular, 

 iml)ricated, persistent. 



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

 leaves ovate or oblong, serrate, petioled ; .spikes olilong or cylindrical; flowers 

 purple. — Low grounds. Introduced. — Stem 6'- 12' high. Spikes thick, 

 lateral and terminal. 



22. SCUTELLARIA, L. Skullcap. 



Calyx bell-.shaped, 2-lippcd, entire and closed after flowering ; the upper 

 lip furnished with a helmet-shaped appendage ou the back, and falling away 

 at maturity, the lower persistent. Corolla-tube dilated at the throat, 2-lipped ; 

 the upper lip arching, with the small lateral lobes united with its sides, the 

 lowest lobe large and spreading. Stamens 4, ascending : anthers ciliate, ap- 

 proximate by pairs, those on the shorter filaments 1 -celled, on the longer ones 

 2-celled, cordate. — Perennial mostly inodorous herbs. Flowers opposite, 

 solitary, in the axils of the upper, mostly bract-like leaves, rarely in lateral 

 racemes. Corolla blue or white. 



♦ Flowers in terminal racemes. 



•t- Leaves cordate, ovate, or ohiong, crenate, petioled ; the floral ones shorter than 



the flowers, entire. 



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

 leaves large, long-petioled, all broadly cordate, rugose and reticulate; the 



