
DIDYNAMIA, GYMNOSPERMIA. $7 
Common Marjorum. 
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. pl]. 983. (Ladiate.) 
Calix arid, above nearly flat; upper lip sub- 
fastigiate. Upper lip of the corolla partly 
vaulted, bifid; middle lobe of the lower lip 
cordate.—.V'utt. 
1. M. whorls dimidiate, bractes oblong, pedicel- officinalis. 
late; leaves ovate-acute, serrate.— Willd. 
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. pl. 990. (Ladiate.) 
Upper lip of the calix dilated. Filaments of 
the stamina forked, only one of the points 
antheriferous. Stigma bifid.— Nutt. 
1. P. leaves petiolate, ovate and lanceolate, den- Pennsylva- 
tate at the base; calix lips equal, the upper trun- 
cate, three awned, stem adscendent —Willd. 
hort. berol. 
leaves ovate. a ovata. 
leaves lanceolate. B lanceolata. 
Self-heal. 
From eight inches to a foot high. Flowers deep purple, rare- 
ly white. Var. . flowers in June; 4. flowers in August, and is 
a large plant. In fields and by road and fence sides, very com- 
mon. Perennial. ; 

