DIDYNAMIA, GYMNOSPERMIA. 37 
Common Marjoram. 
A fine plant, exhaling a very grateful odour. From one to 
two feet high. Flowers red. Indigenous; on stony hills and 
the borders of dry stony fields; frequent. Perennial. July, 
August. 
276. MELISSA. Gen. pi. 983. (Labiata.) 
Calix arid, above nearly flat; upper lip sub- 
fastigiate. Upper lip of the corolla partly 
vaulted, bifid; middle lobe of the lower lip 
cordate. — JT att. 
1. M. whorls dimidiate, bractes oblong, pedicel- 
late; leaves ovate-acute, serrate. — fFilld, 
Balm. 
Common balm is well-known. It is not unfrequently found 
along the edges of fields and by road sides, appearing naturaliz- 
ed. Its domestic use as a tisan, is extensive, and merited. Pe- 
rennial. July. 
277. PRUNELLA. Gen. pi. 990. {Labiatce.) 
Upper lip of the calix dilated. Filaments of 
the stamina forked^ only one of the points 
antheriferous. Stigma bifid. — JS^utt. 
1. P. leaves petiolate, ovate and lanceolate, den- Pennsyiva- 
tate at the base ; calix lips equal, the upper trun- 
cate, three awned, stem adscendent — Willd. 
hort. beroL 
leaves ovate. aovata. 
leaves lanceolate. ^ lanceolata. 
Self-heal. 
From eight inches to a foot high. Flowers deep purple, rare- 
ly white. Var. flowers in June; /S. flowers in August, and is 
a large plant. In fields and by road and fence sides, very com- 
mon. Perennial. 
