ERICACEAE. 



279 



PHYLLODOCE. Mountain Heath. 

 (Family Ericaceae). 



Low matted shrubs: evergreen. 

 Twigs slender, ridged below the 

 leaf-scars: pith minute, continu- 

 ous. Buds minute, solitary, ses- 

 sile, of scarcely evident structure. 

 Leaf-scars alternate, minute, cres- 

 cent-shaped, raised: bundle-trace 

 1, scarcely distinguishable: sti- 

 pule-scars lacking. Leaves small, 

 oblong, minutely serrulate. The 

 small ellipsoid capsules, erect on 

 long slender glandular stalks, are 

 evident in winter. Sometimes 

 placed in Bryanthus. 



Winter-characters of Phyllodoce 

 caerulea are given by Fant, 51. 



The phyllodoces afford another 

 example of the occurrence of iden- 

 tical or equivalent species in high 

 latitudes on both continents, with 

 extension away from the pole at 

 increased altitudes. 



Midrib glabrous: fruit-stalks not bristly. (1). P. Breweri. 



Midrib puberulent beneath: pedicels bristly. (2). P. caerulea. 



