3. General Characters
⢠This is large family of 130 genera and 2300
species, distributed in tropical parts of world.
⢠From India more than 25 genera and 200
species have been reported.
4. ⢠General Habit: Usually aromatic trees or
shrubs, rarely liana-like (i.e. woody climbers)
e.g. species of Oxymitra.
⢠Artabotrys is a hook climber.
⢠Bark, leaves and floral parts contain oil ducts.
18. ⢠Calyx: Sepals 3, sometimes 6 arranged in two
whorls of three each; polysepalous or rarely
basally connate; valvate; rarely imbricate.
19.
20. ⢠Corolla: Generally 6 petals, arranged in two
whorls of three each, sometimes only 3 petals;
polypetalous; valvate or slightly imbricate.
⢠Sometimes,sepals and petals are same so
called as perianth.
22. ⢠Androecium: Stamens numerous,
polyandrous; spirally arranged on large,
convex receptacle; filaments short and thick;
connective continues beyond the anther and
produces a dilated head; adnate; extrorse.
25. ⢠Gynoecium: Carpels numerous, arranged
spirally on the raised receptacle (Polyalthia,
Artabotrys); only 1 -3 carpels in Cyathocalyx;
apocarpous; superior, unilocular, one to many
ovules in the locule; parietal or sometimes
basal or sometimes marginal placentation;
style short or absent; stigma sessile, simple or
trilobed (Tetrameranthus).
31. An aggregate fruit or etaerio (/ÉËtÉŞÉrioĘ/) is a fruit
that develops from the merger of several ovaries that
were separate in a single flower.
37. Economic Importance of Annonaceae
Annona squamosa (Vern.
âSharifaâ or âSitaphalâ) is
cultivated in Assam, West
Bengal, Maharashtra, etc. for
its edible fruits. Its leaves and
seeds have insecticidal
properties.
40. Polyalthia longifolia & P. pendula (Ashok)
are grown for their beautiful drooping green
branches on road sides and in gardens.
Polyalthia longifolia wood is used for
making pencils, boxes, match-box industry
etc.