82 Ericaceae 



*Tribe I. Ledeae. Flowers actinomorphic. Petals 

 free. Seeds with long wings. 



(Petals 5, spreading.) *Ledum. 



*Tribe 2. Rhododendreae. Corolla sympetalous, often 

 weakly zygomorphic. Seeds surrounded by broad wing. 

 (Stamens exserted.) 



*Rhododendron (including *Azalea). 



Tribe 3. Phyllodoceae. Petals usually united. Seeds 

 globose or 3-angled, not winged. Embryo cylindrical. 



Corolla campanulate. Stamens 5. Anthers opening 

 by slits. Capsule 2-3-valved. Loiseluria. 



Corolla urceolate. Stamens 10. Anthers opening 

 by pores. Capsule 5-valved. Phyllodoce. 



Corolla urceolate. Stamens 8. Anthers opening 

 by pores. Capsule 4-valved. Dabeocia. 



B. Berry, drupe or locidicidal capsule. Petals united, 

 deciduous. Anthers appendaged or prolonged into tubes. 



Subfamily 2. Ai^buloideae. Ovary superior. 



Tribe 4. Andromedeae. Buds scaly. Capsule locu- 

 licidal. 



Only British genus (Corolla pitcher-shaped) : 



Andromeda. 



Tribe 5. Arbuteae. Buds naked. Berry or drupe. 

 Anthers with two long reflexed appendages. 



Berry many-seeded with firm endocarp. Arbutus. 

 Drupe with several i -seeded stones. Arctostaphylos. 



Subfamily 3. Vaccinioideae. Ovary inferior. 



Tribe 6. Vaccinieae. Petals united. Stamens epi- 

 gynous. Ovary sharply demarcated from peduncle. 

 Only British genus (Filaments straight, Fruit a berry): 

 Vaccinium (including Oxycoccos). 



