314 FIELD AND WOODLAND PLANTS 



galericulata) — that is frequently seen on the banks of streams and 

 in other wet places. The latter is a slightly downy plant, with a 

 creeping stock, and a slender, branched stem from eight to sixteen 

 inches high. Its leaves are opposite, as in other plants of the same 

 order (Labiatce), with very short stalks, and crenate or slightly- 



TUE IIEUI' AGIU-MONY. 



toothed edges. The flowers are in pairs in the axils of the leaves, 

 almost sessile, and all turned towards the same side of the stem. 

 On the back of the two-lipped calyx is a hollow, scale-like projection 

 which gave rise to the popular name, for when the corolla falls, 

 the lips of the calyx close over the ripening fruit, and the piojection 

 above mentioned then presents somewhat the appearance of a cap. 

 The corolla is over half an inch long, of a dull blue colour 



