Ericaceae. 



299 



Erica. Heath. 

 (Family Ericaceae). 



Typically, small bog shrubs: 

 evergreen. Twigs very slender, 

 more or less ridged below the 

 leaves: pith very small, continu- 

 ous. Buds minute, solitary, ses- 

 sile, ovoid, with 2 or 3 exposed 

 scales. Leaf-scars whorled, mi- 

 nute, half-round: bundle-trace 1: 

 stipule-scars lacking. Leaves 

 small, mostly, except the lower- 

 most, very revolute or folded so 

 that the edges meet down the 

 back, rather longer than the in- 

 ternodes except on elongated 

 shoots. 



Winter-character references to 

 Erica Tetralix: Bosemann, 33; 

 Fant, 52. 



Like heather, the true heaths 

 have barely secured a foothold in 

 this country, on the coast. 



Leaves in whorls of 3. (1). E. cinerea. 



Leaves in whorls of four. 2. 



Leaves glandular-bristly. (Bell heather). (2). E. Tetralix. 



Leaves not glandular. (3). E. carnea. 



