MUSACEAE
1. SYSTEMATIC POSITION:
Bentham
& Hooker
Division: Phanerogames (Seed Plants)
Class:
Monocotyledones
Series:
Epigynae
Family: Musaceae (Scitamineae)
2. MORPHOLOGICAL
CHARACTERS:
Habit
– Perennial herbs, often tree-like (pseudostem) in appearance, very rarely
woody, perennating by means of underground rhizome/sucker.
Leaves
– Simple, often very large, entire, mid-vein stout with parallel venation,
leaf sheath rolled up and overlapping and thus forming the aerial false shoot.
Inflorescence
– Terminal pendulous spike or panicle, subtended by spathaceous coloured
bracts.
Flower
– Large, often brightly coloured, hermaphrodite or unisexual, zygomorphic,
monoecious, epigynous.
Perianth
– Tepals 6, arranged in two whorls, free or variously united.
Androecium
– Stamens 6, free, arranged in two whorls, 5 stamens perfect while the 6th
one is either absent or rudimentary (staminode), anthers dithecous, linear and
long.
Gynoecium
– Tricarpellary, syncarpous, inferior, trilocular, ovules numerous,
placentation axile, style simple, filiform, stigma 3-6 lobed.
Fruit
– A berry or capsule.
4.
COMPARATIVE
SYSTEMATIC POSITION AND AFFINITIES:
Engler & Prantl
have included the families Musaceae, Cannaceae, Zingiberaceae and Marantaceae
in the order Scitamineae. Engler & Prantl have included Musa, Ravenala, Strelitzia and Heliconia in the family Musaceae,
whereas Hutchinson placed them in a separate family Strelitziaceae and
Cronquist and Takhtajan in two distinct families like Strelitziaceae and
Heliconiaceae. The family was included in the order Zingiberales by Hutchinson,
Cronquist and Takhtajan.
Musaceae
is closely related to the families like Zingiberaceae, Cannaceae and
Maranthaceae, and considered to have been derived from the Liliaceous stock.
Engler & Prantl believed Musaceae to be the ancestral stock of Orchidaceae.
5.
ECONOMIC
IMPORTANCE:
1. Musa textilis yields manilia hemp (a kind of fibre) of commerce. Fibres are obtained
from the leaf base which is used for cordage.
2.
Various species of banana like Musa
paradisica, M. champa, M. sapientum, etc. belongs to this family. The fruit
of these plants are edible.
3. Some plants of the family are
grown as ornamentals such as – Heliconia
spp., Ravenala madagascariensis, etc.
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