ERICACEAE 119 



LYONIA. 



Shrubs with brown or gray smooth or fissured bark; slen- 

 der 3-angled twigs; somewhat angular homogeneous pith; 

 alternate low crescent-shaped or half-round leaf-scars with 1 

 bundle-trace; no stipule-scars; solitary sessile round-ovoid 

 buds with about 2 exposed scales ; small pale perfect urn-shaped 

 gamopetalous flowers in axillary or panicled racemes; and 

 small rounded many-seeded capsules. 



Evergreen. L. ferruginea. 



Deciduous. L. ligustrina. 



PIEEIS. Stagger Bush. 



Evergreen or deciduous shrubs sometimes with shredding 

 bark; rather slender roundish or 3-sided twigs; 3-sided con- 

 tinuous pith; alternate raised half-round leaf-scars with a 

 single bundle trace; no stipule-scars; sessile ovoid buds with 

 several exposed scales; lance-elliptical entire or ciliate-serru- 

 late short-petioled leaves; rather small white gamopetalous 

 urceolate perfect flowers in axillary racemes or forming a 

 terminal panicle: a,nd small round or flask-shaped many-seeded 

 capsules. (Lyonia. Xolisma). 



1. Evergreen: buds compressed, acute. 2. 



Deciduous: buds blunt, with about 5 scales. P. Mariana. 



2. Twigs and petioles sparsely hairy. P. floribunda. 

 Glabrous. P. nitida. 



CHAMAEDAPHNE. Cassandra. Leather Leaf. 

 Rather small evergreen shrubs with somewhat shredding 

 bark; slender 3-sided twigs; minute 3-sided or flattened homo- 

 geneous pale pith; alternate low roundish margined leaf-scars 

 with 1 bundle-trace; no stipule-scars, small rounded buds with 

 several ciliate scales; elliptical rather small leathery entire 

 narrowly revolute subsessile leaves 1 , peltate-scurfy beneath; 

 pale perfect urceolate short-stalked gamopetalous flowers soli- 

 tary 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, 



