39. LABI AT .E. 



121 



protuborauces at the base of the 

 middle lobe ; anther cells nincvon- 

 ate at base : capsule lanceolate, 

 as long as the calyx, openin": by 

 2 valves; seeds minute, ovoid. 



widely distributed. — 

 Mediterranean re- 



Pasture : 

 Sept. - No^ 

 arion. 



Bartsia latifolia. 



Family 39.— LABIATyC. 



Flowers irregular ; calyx per- 

 si.stant, Avith 5 or 10 teeth, or 

 2-lipped ; corolla tubular, usually 

 2-Iipped ; stamens 4, in pairs, 

 or 2 by abortion ; ovary 4-lobed ; 

 fruit of 4 dry 1-seeded carpels 

 (as in Boraii'inacece) ; style 1. 2- 

 lobed. Herbs, rarely shrubs, 

 often aromatic; leaves opposite, 

 u.sually beset with glandular 

 dots containing resinous oil ; 

 stems and branches quadrangu- 

 lar ; flowers usually in dense 



clusters, called fulae-n-horh. in the axils of the stem-leaves, 

 or of floral leaves reduced to the appearance of bracts. 



Corolla with 4 almost equal lobes, not dis- 

 tinctly 2-lippod 



Corolla with 2 distinct lips. 



Stamens concealed in the corolla-tube. 

 Flowers purple: calyx with 5 blunt teeth 

 Flowers white; calyx with 10 sharp, 



curved teeth 



Stamens not concealed in the covolla-tube. 

 Stamens 2; anthers 1-cellod ; calyx 2- 

 lipped. 

 Filaments surmounted by a simple, 



len^-thened connective 



Filaments surmounted by a branched 

 connective, the longer branch bear- 

 ing the anther 



Stamens 4; anthers 2-celled. 

 Flowers white; calyx flattened on the 

 back, with 5 unequal teeth ; frag- 

 rant pereiuiial 



Flowers violet ; calyx rounded on the 

 back, with 5 equal teeth ; non- 

 fragrant plants 



I.'Menth.v, L. 



Calyx o-toothed ; corolla funnel-shaped, with the tube 

 enclosed in the caly.x, and 4 subequal lobes; stanu'us 4 

 equal, erect, distant; antlier.s with 2 parallel cells: carpels 



Mkntha 1 

 Lavaxdti.a 2 



^lARErUIt'M 3 



RosMAKi.\rs 4 

 Salvia 5 



^Ielissa 6 

 Stachys 7 



