DIDYNAMIA.— GYMNOSPERMIA. 229 



the border equal. Stam, subequal. Stig. linear, 

 recurved. 

 172. HYSSOPUS. Lower lip of the Cor. 3-parted: 

 middle segment crenate. Stam. straight, distant. 



373. NEPETA. CW. arid, striate. Tube of the Cor. 



rather long, intermediate segment of the lower 

 lip crenate, margin of the orifice reflexed. Stam. 

 approximate. 



374. LAMIUM. Upper lip of the Cor. vaulted, entire ; 



lower lip 2-lobed, toothed on each side. 



375. GALEOPSIS. Upper lip of the Cor. vaulted, 



notched ; lower lip 3-lobed, 2-toothed above. 



376. STACHYS. Upper lip of the Cor. vaulted, 



lower lip 3-lobed ; the lateral lobes reflexed. 

 Stam. reflexed to the sides after flowering. 



377. LEONURUS. Cal. 5-angled. Upper lip of the 



Cor. entire, flat, erect ; lower lip 3-parted ; 

 middle segment entire. Anth. sprinkled with 

 shining dots. 



378. GLECHOMA. Upper lip of the Cor. bifid. Anth. 



approaching each other in pairs, and forming a 

 cros^. 



379. MARRUBIUM. Cal. 10-ribbed. Upper lip of 



of the Cor. linear, straight, cleft. 

 379. PYCNANTHEMUM. Heads surrounded by an 

 involucrum of many bracts. Cal. tubular, stri- 

 ate. Upper lip of the Cor. nearly entire ; lower 

 lip 3-cleft. Stam. nearly equal, distant ; cells 

 of the Anth. parallel. 



** Calyx bilabiate. 

 381. CLINOPODIUM. Whorls surrounded by a se- 

 taceous involucrum. — Upper lip of the Cor. flat. 

 emarginate. 

 302. ORIGANUM. Flowers collected into a dense, 4- 

 sided spike. Upper lip of the Cor. straight, 

 flat, emarginate. 

 383. DRACOCEPHALUM. Orifice of the Cor. infla- 

 ted ; upper lip concave. Stam. unconnected. 

 PRUNELLA. Upper lip of the Cal. dilate.! 



Filam. forked, one of the points antheriferous. 

 SCUTELLARIA. Upper lip of the Cal. covering 

 the fruit like an operculum. 

 U 



