Volume IV (1988) - Flora of New Zealand Naturalised Pteridophytes, Gymnosperms, Dicotyledons
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Epacridaceae

EPACRIDACEAE

Prostrate or erect evergreen shrubs or shrublets, more rarely small trees. Lvs alternate, very rarely opposite, often ericoid, sometimes densely crowded, usually entire, often rigid and coriaceous, exstipulate. Fls small, solitary, in spikes or racemes, axillary or terminal, usually ⚥; bracts usually prominent. Calyx 4-5-lobed or of free sepals, persistent. Corolla 4-5-lobed, rarely of free petals; lobes imbricate or valvate, occasionally the lobes coherent and tube opening transversely. Stamens 4-5, generally epipetalous but sometimes inserted on receptacle; anthers 1-locular, opening by longitudinal slits; staminodes sometimes present or reduced to hair tufts or glands. Pollen often shed in tetrads. Ovary superior, nearly always surrounded by hypogynous nectariferous disc of scales; carpels (1)-5-10; style single; ovules 1-many on axile or apical placentae. Fr. a loculicidal capsule (subfam. Epacrideae) or a drupe with 1-5-seeded stone (subfam. Styphelieae). Seeds small, endospermic; embryo straight.

Key

1
Fr. a capsule
2
Fr. a drupe with succulent mesocarp
5
2
Lvs petiolate or at least the base narrowed to the stem
3
Lvs with broad sheathing base, adnate to stem
4
3
Bracts many, closely surrounding calyx, persistent
Bracts < 5, scarcely reaching, or at least not enveloping, calyx, caducous
ARCHERIA†
4
Lvs falling to leave annular scars on stem; corolla with distinct tube
Lvs not leaving scars on stem; stem smooth; corolla tube 0 or very short
5
Drupe separating into 5-10 nut-like pyrenes
PENTACHONDRA†
Drupe with one bony stone containing several seeds
6
6
Bracteoles 2, opposite
LEUCOPOGON†ζ
Bracteoles 3 or more, spirally imbricate

c. 30 genera, 400 spp., mainly S. Hemisphere, especially Australia.

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