368 Labiates Lamium. 



triquetrous. There are between thirty and forty species, in 

 temperate Europe, Asia, and North Africa. The generic 

 name is a modification of Aat/zoy, throat, the form of the 

 corolla. There are several indigenous species. The commonest, 

 L. album, is a perennial with large white villous flowers 

 produced from early Spring till Autumn. L. Galeobdolon, 

 Yellow Archangel, is a handsome herb, plentiful in the South 

 of England. It is hispid and glabrescent, with Nettle-like 

 leaves and axillary whorls of showy yellow flowers spotted 

 with reddish brown, appearing in May and June. L. pur- 

 pureum is an exceedingly common annual weed on cultivated 

 grounds. L. maculatum is very near L. album, with smaller 

 foliage spotted or banded with white, and purplish flowers. This 

 is the only one commonly seen in gardens, and it is occasion- 

 ally found in waste places as a straggler from cultivation. 



Leonurus Oardlaca, Motherwort, is a perennial herb from 

 2 to 3 feet high with deeply-lobed leaves and crowded whorls 

 of purplish flowers having sharply-toothed calyces. P'ormerly 

 cultivated, and now occasionally found in waste and neglected 

 places. 



11. STACHYS (including Betonica). 



Herbs or undershrubs with toothed leaves and terminal 

 racemes or spikes of flowers. Calyx nearly equally 5-toothed. 

 Corolla^tube not dilated at the throat; and usually furnished 

 with a ring of hairs inside ; upper lip erect or spreading ; 

 lower lip longer, 3-lobed, the lateral lobes often reflexed. 

 Stamens 4, the lower pair longer. This is a large genus, 

 numbering nearly 150 species; found in temperate and warm 

 regions. The name is from ara^us, an ear or spike, the form 

 of the inflorescence. There are several native species. S. 

 Betonica, Wood Betony, is a common plant in England. It 

 is a tall herb with dense terminal bracteate spikes of reddish 

 purple flowers. S. sylvdtica and S. palustris are also toler- 

 ably common. 



1. S. lanata. This is the species employed in bedding for 

 its tufted silvery foliage, which is densely clothed with a silky 

 tomentum. The flowers are small and inconspicuous. A native 

 of South-eastern Europe and Asia Minor. 



S. coccinea is a South American species about 3 feet high, 

 with cordate toothed hairy leaves and brilliant scarlet flowers 

 in suikes of whorls. 



