Useful information about the plant family

Family: Arecaceae (Palmae) Bercht. & J. Presl 1820

Description-internal
Trees or shrubs with unbranched or rarely branched trunks; apex of stem with a large apical meristem
Distribution
Widespread in tropical to warm temperate regions
Floral characters
Flowers bisexual or unisexual, radial, usually sessile, with perianth usually differentiated into calyx and corolla. Sepals 3, distinct to connate, usually imbricate. Petals usually 3, distinct to connate, imbricate to valvate. Stamens 3 or 6 to numerous; filaments distinct to connate, free or adnate to petals; pollen grains usually monosulcate. Carpels usually 3, but occasionally as many as 10, sometimes appearing to have a single carpel, distinct to connate; stigmas various. Ovules 1in each locule
Systematic remarks
alos named as Palmae
Leaf characters
alternate, often crowded in a terminal crown, but sometimes well separated, simple and entire, but usually splitting in a pinnate to palmate fashion as the leaf expands, and at maturity appearing palmately lobed, costpalmately lobed, pinnately lobed or compound, or rarely twice pinnately compound
Stipules
absent
Fruit characters
a drupe, often fibrous, or rarely a berry; endosperm with oils or carohydrates, sometimes ruminate
Hairs
present or absent
Uses
Areca ( betel nut ), Attalea ( American oil palm ), Cocos ( coconut ), Elaeis ( African oil palm ), Raphia ( raffia )

Distribution maps

(online von http://www.mobot.org/MOBOT/research/APweb/ . Dort zitiert wie unter jedem Diagramm vermerkt):
Unterfamilie Arecoideae (Arecaceae)

map: from Uhl & Dransfield 1987
Unterfamilie Calamoideae (Arecaceae)

map: from Uhl & Dransfield 1987
Unterfamilie Ceroxyloideae (Arecaceae)

map: from Uhl & Dransfield 1987
Unterfamilie Coryphoideae (Arecaceae)

map: from Uhl & Dransfield 1987
Unterfamilie Nypoideae (Arecaceae)

map: current distribution in red, from Uhl & Dransfield 1987; fossil records from other places outside this area in blue, from Plaziat et al. 2001