ERICACEAE: Heath Family
KEY TO SPECIES OF LYONIA
1. Blade underside of mature leaves with small peltate scales .................... L. fruticosa
1. Blade underside of mature leaves without peltate scales, sometimes bearing minute scattered multicellular-headed hairs ............................. 2
2. Leaf blade rigidly leathery, a continuous vein running along and just inside the margin (intramarginal) ................................. L. lucida
2. Leaf blade thinner, easily pliable, without intramarginal vein .............. 3
3. Leaf blade entire (See GROUP J) ................................. L. mariana
3. Leaf blade toothed (See GROUP K) ............................. L. ligustrina