DICOTYLEDONOUS PLANTS 143 



the whole forming a spike or head. Calyx tubular, bell-shaped, 

 somewhat 10-ribbed, upper lip broad, 3-toothed, the teeth 

 short ; lower lip with 2 longer teeth. Upper lip of the corolla 

 upright, arched, and entire, the lower spreading, reflexed, 

 fringed, and 3-cleft. Stamens 4) reaching up under the upper 

 lip, with the tips of the filaments 2-toothed, only one tooth anther- 

 bearing. 



B. vulga'ris L. SELF-HEAL, HEAL-ALL, CARPENTER WEED. 



Leaves with petioles, ovate-oblong, either entire or toothed, often 

 somewhat hairy ; corolla usually dark-blue or purplish, somewhat 

 longer than the brown-purple calyx. This is often abundant in 

 damp places, and is widely distributed. 



IX. MARRU'BIUM, Horehound 



Perennial herbs with many stems, forming a clump a foot 

 or two high, white-woolly. Calyx with usually 10 nerves and 

 teeth, the alternate ones spiny-tipped and recurved. Corolla 

 with upper lip narrow, arched and 2-lobed ; lower spreading 

 and 3-cleft. Stamens 4, having anthers with the 2 cells not dis- 

 tinct. Flowers in dense whorls, in the axils of the upper 

 leaves. This is a widely spread, introduced plant. 



M. vulga're L. Leaves roundish, wrinkled, crenate. Corolla 

 small and white. The bitter aromatic juice is used as a remedy for 

 colds. 



X. STA'CHYS, Hedge Nettle 



Perennial herbs with a disagreeable odor, some species 

 growing near water becoming very tall. Flowers nearly ses- 

 sile, in scattered whorls, purplish or white. Calyx 5-toothed, 

 5-10-nerved. Corolla with tube not dilated at the throat, the 

 upper lip erect, arched, entire or notched, lower spreading, 8-lobed, 

 the middle lobe longest. Stamens 4) with 2-celled anthers. 



a. S. bulla'ta Benth. Stems one or several, loosely branching, 

 rough with downward-pointing hairs. Leaves ovate, cordate, cre- 

 nate, obtuse, with petioles an inch or two long. Flowers red-purple, 

 in whorls, forming an interrupted spike. This grows everywhere in 

 California, and blooms almost throughout the year. 



b. S. al'bens Gray. Stems erect, 1-5 ft. high, clothed through- 

 out with soft white wool. Leaves oblong, cordate at base, crenate, 



