280 SYSTEMATIC BOTANY. 



mens 4, ascending beneath the lower lip. Anthers approximate in 

 pairs, if 



S. PALUSTRIS (Hedge Nettle. Woundwort). Stem erect, nearly simple, 

 clothed with stiff, deflexed bristles, especially on the angles ; leaves ovate- 

 lanceolate or oblong-lanceolate, acute, serrate, bristly, especially on the mid- 

 rib and veins, rounded at base, on short petioles ; flowers arranged in spikes ; 

 calyx with bristly teeth ; corolla pale purple. In swamps and meadows, 1-3 

 feet high. July. 



20. Marrubium. Calyx tubular, 5-io-ribbed, with 5-10 nearly 

 equal teeth. Corolla bilabiate ; upper lip erect, flattish, emarginate ; 

 lower lip spreading, 3-cleft. Stamens 4, included in the corolla-tube. if. 



M. VULGARE (Hoarhound). Stem ascending, white-downy ; leaves round- 

 ish-ovate, crenately toothed, petiolate, white-downy beneath ; flowers in 

 dense, hairy, axillary whorls ; calyx-teeth 10, recurved ; alternate ones short- 

 er ; corolla small, white. A bitter, aromatic herb, rather frequent in waste 

 grounds. Introduced. Stem 1-2 feet high. August. 



21. Trichostema. Calyx campanulate, oblique, deeply and un- 

 equally 5-toothed ; upper lip with 3 nearly equal teeth. Corolla with 

 a very short tube, unequally 5-lobed ; lobes oblong, declined. Sta- 

 mens 4. 



T. DICHOTOMUM (Blue Curls). Stem erect, dichotomously branching, 

 hairy ; leaves oblong- lanceolate ; flowers axillary and terminal, on slender, 

 i-flowered pedicels, becoming inverted by the twisting of their stalks ; corolla 

 small, bright blue ; stamens very long, much exserted, bright blue, very con- 

 spicuous, curving from the lower lip to the upper. In dry pastures, 6'-8' 

 high. August. 



Order LXIII. PLANTAGINACE./E (Plantain Family). 



Herbs usually acaulescent. Leaves in a radical tuft, often 

 ribbed. Calyx 4-cleft, free from the ovary, persistent. Corolla 

 more or less tubular, 4-cleft, scarious, persistent. Stamens 4, 

 alternate with the corolla-lobes. Filaments long and weak. An- 

 thers versatile. Ovary 2-celled. Style i. Capsule a membrana- 

 ceous pyxis, the cells i or several-seeded. 



Plantago. Calyx-teeth 4, persistent, dry. Corolla tubular, with- 

 ering, with a 4-cleft, reflexed border. Capsule an ovoid, 2-celled pyxis. 

 Acaulescent. 



i. P. MAJOR (Common Plantain). Leaves large, ovate, tapering abruptly 

 at base, very strongly ribbed ; spike long, cylindrical ; flowers densely im- 

 bricated, whitish, inconspicuous. In damp soils, 8'-2 feet high. June-Sep- 

 tember. 



