Volume III (1980) - Flora of New Zealand Adventive Cyperaceous, Petalous & Spathaceous Monocotyledons
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Agavaceae Dumort.

AGAVACEAE

Robust, arborescent or tufted perennials, with rootstock or rhizome. Stem stout, woody, short or sometimes forming a heavy trunk. Leaves narrow, usually simple, often thick, usually crowded towards apex of stem. Inflorescence racemose or paniculate, sometimes large; branches subtended by bracts. Flowers bisexual or unisexual, actinomorphic or slightly zygomorphic; perianth-segments 6, unequal to subequal, ± connate into tube. Stamens 6, shortly adnate to segments; filaments free; anthers introrse, linear, usually dorsifixed, 2-locular, dehiscing by longitudinal slits. Ovary superior or inferior, often beaked, 3-locular; placentae axile; style simple; ovules solitary in each locule, or superposed in 2 series. Fruit a capsule or berry. Seeds few to many, compressed. Genera c. 20, mostly of tropics and subtropics.

† Treated in Vol. II.

Key

1.
Leaves equitant
PHORMIUM†
Leaves not equitant
2
2
Leaf-tips horny, pungent
3
Leaf-tips not pungent
5
3
Inflorescence with bulbils
Inflorescence without bulbils
4
4
Leaves with horny teeth
Leaves with entire margins
5
Leaf-margins entire smooth
Leaf-margins sharply serrate
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