246 DIDYNAMIA GYMNOSPERMIA. QcL. XIV. 



curved hairs. This species varies exceedingly in its appearance : 



flowers pale-purple. Perennial : flowers in August and September : 

 grows in ditches, and by the sides of pools, lakes, and streams : common. 

 Eng. Bot. vol. vii. pi. 447 and 448. Eng. Fl. vol. iii. p. 79. Of this M. 

 acvtifolia of Smith, Eng. Bot. pi. 2415, Eng. Fl. vol. iii. p. 81, appears to 

 be a variety. 859. 



7. M. rubra. Tall Red Mint. Flowers in whorls, stem erect, zigzag; 

 leaves stalked, broadly egg-shaped, serrate, smooth ; flower-stalks and 



lower part of the calyx smooth. Stems from four to five feet high : 



leaves of a deep shining green, bracteas linear, fringed : corolla large, 

 purplish-red. Perennial : flowers in September : grows in watery 

 places: not common. Eng. Bot. vol. xx. pi. 1413. Eng. Fl. vol. iii. 

 p. 82. 860. 



8. M. gentilis. Bushy Red Mint. Flowers in whorls ; stem much 

 branched, spreading ; leaves stalked, egg-shaped, serrate, slightly hairy ; 



flower-stalks and lower part of the calyx nearly smooth. Stem erect, 



bushy, with numerous spreading branches, about a foot and a half high : 

 bracteas lance-shaped, hairy : corolla pale-purple. Perennial : flowers 

 in August: grows in watery places: rare. Eng. Bot. vol. xxx. pi. 2118. 

 Eng. Fl. vol. iii. p. 83. M. gracitis of Smith, Eug. Bot. pi. 449, Eng. 

 FL vol. iii. p. 84, is probably a variety of this. 861. 



9. M. arotnsit. Corn Mint. Flowers in whorls ; leaves stalked, egg- 

 shaped ; stem branched, spreading ; calyx bell-shaped, covered with 



spreading hairs. Pale-green, hairy : stems from six inches to a foot 



long, generally decumbent : leaves serrate : flowers pale-purple. The 

 smell of this species has been compared to that of green cheese. Peren- 

 nial : flowers from June to September : grows in corn-fields, in dry 

 ditches, and in pastures: common. Eng. Bot. vol. xxx. pi. 2119. Eng. 

 Fl. vol. iii. p. 85. 862. 



10. M. Pnltgium. Penny Royal. Flowers in whorls ; leaves egg- 

 shaped, blunt, obtusely crenate, downy ; stems prostrate ; flower-stalks 



and calyx downy. Stems hairy, branched, creeping: leaves stalked, 



full of pellucid dots : corolla light-purple, externally hairy. Perennial : 

 flowers in September : grows in moist heaths and pastures, in England, 

 and the south of Ireland : rare. Eng. Bot. vol. xv. pi. 1026. Eng. Fl. 

 vol. iii. p. 87. 863. 



6. GLECHO'MA. GROUND Ivy. 



Calyx of one leaf, tubular, cylindrical, striated, with five 

 pointed, unequal, marginal teeth. Corolla gaping ; tube slender, 

 compressed ; upper lip erect, obtuse, cleft half-way down ; lower 

 lip three-lobed, the middle lobe larger and cleft. Filaments 

 covered by the upper lip; anthers of each pair coming together, 

 and forming a cross. Germen egg-shaped, four-cleft. Style thread- 

 shaped, curved under the upper lip; stigma cleft, acute. Seeds 

 four, egg-shaped, in the bottom of the permanent calyx. Name 

 from glechon, a sort of thyme. 285. 



1. G. liederdcea. Ground Ivy. Gilt. Ale-hoof. Leaves kidney- 

 shaped, crenate. Roots creeping, sending out long runners : stems 



frequently several feet long, creeping : leaves stalked : flowers bluish- 

 purple, with a variegated palate. This plant is aromatic, and has been 



