DIDYNAMIA GYMNOSPERMIA. 129 



I. GYMNOSPERMIA. 



168. AJUGA. 



1. A. reptans, almost smooth ; stem solitary, with creeping 

 scions ; leaves obovate, crenate ; flowers blue, in whorls in the 

 axils of the upper leaves ; lower lip 4-cleft. Common Bugle. 



Hob. Woods and moist meadows. In dry mountainous 

 situations, as on Lamberton Moor, the plant becomes 

 hairy. May, June. I/. 



169. TEUCRIUM. 



1. T. Scorodonia, stem erect ; leaves heart-shaped, hairy, serra- 

 ted, stalked ; flowers in lateral and terminal clusters, unilateral, 

 pale yellow, with purple stamens. Wood Sage. 



Hob. Woods and heathy bushy places, common. July. 



" The whole plant is glutinous and bitter, with an agree- 

 able aromatic scent, much resembling that of hops, for 

 which it is said to be no bad substitute for making beer." 

 SM. 



170. MENTHA. 



1. M. Piperita, leaves stalked, ovate-lanceolate, smoothish ; 

 spikes elongated, interrupted below ; flower-stalks and calyx 

 smooth, purple, dotted ; calyx-teeth fringed with hairs. Pep- 

 permint. 



Hab. Sides of the rivulet below Lamberton Shields, Ber- 

 wickshire, plentiful. Aug. Sept. I/. 



Our plant is the variety a of SMITH. There is only one 

 other station where this species has been ascertained to 

 grow wild in Scotland. It is extensively cultivated for 

 medicinal purposes. 



2. M. hirsuta, hairy ; flowers capitate or whorled ; eaves 

 stalked, ovate ; calyx clothed with erect hairs ; flower-stalks 

 with recurved ones. Hairy Mint. 



