ERICACEAE, 149 
flat leaves; small purplish gamopetalous urn-shaped slender- 
stalked terminal flowers; and small roundish many-seeded cap- 
sules. 
Leaves minutely serrulate, obtuse. P. caerulea. 
CASSIOPE, 
Moss-like trailing evergreen shrubs with slender subterete 
twigs; more or less flattened spongy pale pith; opposite raised 
crescent-shaped minute leaf-scars with a single bundle-trace; no 
stipule-scars; minute buds usually developing the first season; 
small sessile overlapping leaves; rather small slender-stalked 
pale deeply parted cup-shaped gamopetalous flowers at end of 
the branches; and round-ovoid small capsules. 
Leaves linear, acute, upcurved. C. hypnoides. 
LEUCOTHOE, 
Evergreen or deciduous shrubs with brown wood with 
minute diffused ducts and fine medullary rays; slender more or 
less 3-sided twigs; small somewhat 3-sided continuous pith; 
alternate small somewhat raised crescent-shaped leaf-scars with 
a single bundle-trace; no stipule scars; small round buds with 
several exposed scales; lance-elliptical short-petioled serrulate 
leaves; perfect urn-shaped gamopetalous white flowers in one- 
sided racemes; and small depressed-globose many-seeded cap- 
sules, 
I. Evergreen. 2. 
Deciduous. 3. 
2, Leaves acute or short-acuminate. L.. axillaris. 
Leaves long-acuminate. L. Catesbaei. 
3. Racemes strongly recurving. L. recurva. 
Racemes not recurved. L.. )racemdsae 
ANDROMEDA, Bog Rosemary. 
Evergreen small shrubs with rather shredding bark; few 
slender subterete branches; roundish brown homogeneous large- 
celled pith; alternate at first raised crescent-shaped small leaf- 
scars with 1 bundle-trace; no stipule-scars; small ovoid sessile 
solitary buds with 2 exposed scales; entire mostly very revolute 
