Verbenaceae, Labial ae 91 



with two ovules, rarely with only one. Fruit often of 

 nutlets. 



Fam. 4. Verbenaceae. Herbs, shrubs or trees. 

 Leaves mostly opposite. Flowers mostly zygomorphic. 

 Calyx tubular. Corolla often with curved tube and 

 2-lipped limb. Stamens mostly 4, didynamous. 

 Carpels mostly (2), each with two ovules', micropyle 

 facing downwards. Ovary usually ultimately 4-loc. 

 Style terminal, simple. Fruit mostly drupaceous (nut- 

 lets in British species). 



Tribe Verbeneae. Mostly herbs. Flowers in spikes 



or racemes. Loculi of ovary divided or not. No eyido- 

 sperm. 



Only British genus : Verbena. 



Fam. 5. Labiatae. Aromatic herbs and shrubs. 

 Leaves and branches opposite or whorled. Flowers 

 usually zygomorphic, in cymes often forming false 

 ivhorls. K 5. C 5, limb often 2-lipped. A 4, didy- 

 namous, or two stamens and two staminodes, or two 

 stamens and no staminodes, 5th stamen rarely repre- 

 sented by staminode. G (2), each with two erect 

 anatropous ovules. The carpels are folded in between 

 the ovides. Fruit dividing into four nutlets, or fewer by 

 abortion. 



Subfamily I. Ajugoideae. Calyx-tube \o-\\-x\h\>^^. 



Corolla I or 2-lipped, rarely almost actinomorphic. 



Stamens 4, rarely 2. Ovary usually shortly divided, 



or to one-third its length. Nutlets obovoid with dry 



pericarp. Endosperm very scanty. Embryo straight. 



Tribe i. Ajugeae. Calyx lo-ribbed. Corolla either 

 almost actinomorphic or (as in British genera) with ver)- 



