rh ORD: XIX. Verticillate. 
MARRUBIUM VULGARE, COMMON WHITE HOREHOUND. 
SYNONYM4A_ Marrubium. Pharm. Lond. & Edinh. Marrubium 
album vulgare. Bauh. Pin. p. 230. Park. Theat. p. 44. Mar- 
rubium album. Gerard Emac. p. 693. Raii Hist. p. 556. Synop. 
p. 239, Marrubium dentibus calycinis denis, recurvis. Hal. Stirp. 
Helv. n. 258. Hudson. Flor. Ang. p. 260. Withering. Bot. Arr. 
p. 617. 
Class Didynamia. Ord. Gymnospermia. Lin. Gen. Plant. 791. 
Ess. Gen. Ch. Cal. hypocateriformis, rigidus 10-striatus. Corolle, 
lab. sup. 2-fidum, lineare, rectum, 
Sp. Ch. M. dentibus calycinis setaceis uncinatis. 
THE root is perennial, and furnished with numerous fibres: the 
stalks are upright, strong, square, hairy, or downy, and rise about 
a foot and a half in bead ht = the leaves are roundish or oblong, 
deeply serrated, veined, wrinkled, hoary, and stand in pairs upon 
thick broad footstalks: the flowers are white, and produced in 
whorls at the footstalks of the leaves: the calyx is tubular, scored, 
and divided at the mouth into ten narrow segments, which are 
hooked at the end: the corolla is monopetalous, gaping, com~ 
pressed, consisting of a cylindrical tube, opening at the mouth 
into two lips: the upper lip is narrow, and cloven or notched ; 
the under lip is broader, reflected, and divided into three seg- 
ments, the middlemost of which is broad, and slightly scolloped 
at the end; the lateral segments are spear-shaped and short: the 
filaments are two long and two short, supplied with simple an- 
there, which are concealed in the tube: the germen is divided 
into four parts, from which issues a slender style, furnished with 
a cloven stigma: the seeds are four, of an oblong shape. It grows 
near the sides of roads and rubbish, and flowers in June. 
