Lyonieae Kron & Judd, Amer. J. Bot. 86: 1298. 1999. – Type
genus: Lyonia Nutt.
Shrubs, rarely lianas, evergreen or deciduous, with, non-ericoid entire, serrulate,
or serrate leaves, convolute or less commonly revolute in bud. Secondary phloem
with bands of fibers; leaf epidermal cells ± lignified. Indumentum of
stalked glandular and/or elongate and eglandular hairs, or ferrugineous, peltate
scales. Inflorescence usually axillary, rarely terminal, racemose, paniculate,
or fasciculate; bracts present, bracteoles paired, variable in position; calyx
usually articulated with pedicel. Flowers usually 5-merous, but rarely 4- to
8-merous, actinomorphic. Calyx lobes usually small, persistent; corolla sympetalous,
usually urceolate to tubular, the lobes small; stamens usually 10, the filaments
usually S-shaped, unicellular-pubescent, roughened, or smooth, sometimes with
paired spurs on the anther-filament junction or upper portion of filament; anthers
slightly to clearly roughened, with a white deposit of disintegration tissue
dorsally, dehiscing by terminal pores. Ovary usually 5-locular, with axile placentation,
superior; style impressed; stigma ± truncate. Fruit a loculicidal capsule;
seeds usually with elongate testa cells; embryo with 2 cotyledons. |