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The family comprises of about 240 genera and 4000 species found in temperate and sub-tropical regions of the world such as Asphodelus tenuifolius. Most species are annual or perennial herbs. The important genera are: Lilium, Aloe, Allium (onion) and Asparagus.
Asphodelus tenuifolius Piazi
The representative species is Asphodelus tenuifolius (piazi).
Asphodelus tenuifolius (Piazi)
Habit
It is an annual weed.
Root
The roots are Adventitious, fibrous
Stem
Reduced, condenced, underground, aerial erect and fistular
Leaf
Radical, Sessile, Slender, Erect, Pointed, leaf bases sheathing.
Inflorescence
Scapigerous raceme. Flower borne on a long-branched stalk, the scape. The perianth is not differentiated into calyx and corolla.
Flower
Bracteate (bracts boat-shaped), Pedicellate, Complete, Actinomorphic, Trimerous, Bisexual, Hypogynous, white
Perianth
6 perianth leaves in two whorls of 3 each, gamophyllous, white, inferior
Androecium
6 stamens in two whorls of 3 each, Polyandrous, Epiphyllous, Filaments broad at base and surround the ovary, Anthers basifixed or versatile
Gynoecium
Tricarpellary, Syncarpous, Ovary: superior and trilocular with two rows of ovules in each locule, Placentation: axile, Stigma: trilobed.
Floral Formula
P(3-5), A3+3, G(_3)
Asphodelus tenuifolius Floral Diagram
Floral Structure
The floral structure of Asphodelus tenuifolius consists of L.S Flower, Floral Axis, T.S Ovary, Stamen, Twig, Gynoecium.
The flowering twig consists of the following parts roots, bulb, leaves, filament, flower, inflorescence, scape while the L.S Flower consists of tepal, stigma, stamen, style, ovary, ovule, pedicel. The T.s Ovary consist of ovary wall, locule, ovule, placenta. The stamen consists of anther lobe, connective.
Economics Importance of Asphodelus tenuifolius (Piazi)
Onion, Garlic, Asparagus are edible and used as food.
Yucca and few others like Sanseviera guineensis and Phormium tenax yield fibres.
Smilax, Aloe, Gloriosa and Urginea yield useful drugs.
Dracaena yields red resinous juice, the “dragon’s blood”.
Hundreds of species and varieties are in use ornamentals including such well known forms as Tulips, Hyacinths, Gloriosa, Lilies, Aloe, Tiger lily (L.tigrinurn), Easter lily (L. longiflorum), Aaparagus, Yucca, Dracaena etc.