ERICACEAE. 151 



several ciliate scales ; elliptical rather small leathery entire nar- 

 rowly revolute subsessile leaves, peltate-scurfy beneath ; pale 

 perfect urceolate short-stalked gamopetalous flowers solitary 

 in the axils of the reduced upper leaves ; and 'depressed-globose 

 small capsules. 



1. Leaves oblong, not crisped. 2. 



Leaves linear-lanceolate, crisped. C. calyculata angustifolia. 



2. Over 30 cm. high ; branches rather ascending. C. calyculata. 

 Scarcely 30 cm. high : branches horizontal. C. calyculata nana. 



ENKIANTHUS. 



Deciduous shrubs with rather slender terete twigs swollen 

 and leafy at tip ; somewhat angled brownish continuous pith ; 

 alternate crescent-shaped small little-raised leaf-scars with a 

 single bundle-trace; no stipule scars; ovoid scaly terminal buds; 

 moderately small obovate oblanceolate petioled entire or ser- 

 rulate leaves ; rather small bell- or cup-shaped gamopetalous 

 perfect flowers in terminal racemes ; and small oblong capsules 

 erect on long slender drooping pedicels. 



Flowers white : pedicels glabrous. E. perulatus. 



Flowers red : pedicels loosely hairy. E. campanulatus. 



OXYDENDRUM. Sourwood. 



Deciduous small trees with rather soft wood with numer- 

 ous small diffused ducts and fine medullary rays; rather slen- 

 der rounded or 3-sided twigs ; roundish continuous pale pith ; 

 alternate somewhat raised half-round leaf-scars with a single 

 large bundle-trace ; no stipule-scars ; roundish buds with about 

 3 exposed scales ; moderate petioled entire or serrulate acid 

 leaves ; perfect small urn-shaped white gamopetalous flowers, 

 one-sided on the branches of loose terminal panicles; and 

 small oblong many-seeded capsules erect on the pedicels. 

 Leaves lanceolate, acuminate. O. arboreum. 



EPIGAEA. Trailing Arbutus. 



Evergreen small trailing half-shrubs with rather flaking 

 bark; moderately slender brown bristly terete twigs; roundish 

 spongy pith ; alternate moderate-sized firm somewhat revolute 



