ERICACEAE. 287 
LYONIA. 
(Family Ericaceae). 
Shrubs or sometimes subar- 
borescent: evergreen or decidu- 
ous. Twigs slender, somewhat 3- 
sided, becoming terete. Buds soli- 
tary, sessile, small, oblong, more 
or less flattened against the stem, 
with 2 exposed scales. Leaf-scars 
alternate, minute, low, half-round 
or crescent-shaped: bundle-trace 1: 
stipule-scars lacking. Leaves, when 
persistent, simple, entire or ob- 
scurely serrulate, and scurfy be- 
neath. 
As with Pieris, Lyonia was for- 
merly merged in Andromeda, and 
the generic name Xolisma has 
been used for its species, which 
occur in a number of variants 
which have been thought by some 
botanists to represent distinct 
species. 
1. Deciduous: capsules very small, subglobose. 
(1). L. ligustrina. 
Evergreen: capsules oblong. 2. 
2. Leaves without prominent veinlets: tall. (2). L. ferruginea. 
Leaves raised-reticulate beneath: dwarf. L. fruticosa. 
