ORD. XX. PERSONATA. 
(From Persona, a masque.) 
Plants having irregular monopetalous flowers, assuming a gaping 
or grinning appearance. 
GRATIOLA OFFICINALIS. HEDGE-HYSSOP. 
—_—_ 
SYNONYMA. Gratiola. Pharm. Lond. & Edinb. Gerard. 
Emac. p. 518.  Raii Hist. p. 1885. Dodon. Pempt. p. 358. 
Hal. Stirp. Helo. n. 329, Gratiola, Gratia Dei. Lob. Hist. p, 238. 
Chab.p. 475. Gratiola centauroides. Bauh, Pin. p. 279. Gra- 
tiola vulgaris, Park. Theat. p. 220. Gratiola officinalis. |For. 
Dan. t. 363. 
Class Diandria. Ord. Monogynia. Lin. Gen. Plant. 29. 
Ess. Gen. Ch. Cor. irregularis, resupinata. Stamina 2-sterilia. 
Caps. 2-locularis. Cal. 7-phyllus: 2 exterioribus patulis. 
Sp. Ch. G, foliis lancéolatis serratis, floribus pedunculatis. 
THE root is perennial, cylindrical, white, jointed, and furnished 
with many slender fibres: the stalk is simple, erect, round, thick, 
and rises nearly a foot in height: the leaves are lance-shaped, long, 
pointed, serrated towards the extremities, and stand in pairs, 
without footstalks: the flowers proceed from the base of the leaves, 
