Question

Give an account of the distinguishing features of family Liliaceae. Give
botanical names of four plants ofeconomic value belonging to this family.​

Answer 1

Explanation:

The lily family, Liliaceae, consists of about 254 (or 15) genera and about 4075[4] (or 610[2]) known species of flowering plants within the order Liliales. They are monocotyledonous, perennial, herbaceous, often bulbous geophytes. Plants in this family have evolved with a fair amount of morphological diversity despite genetic similarity. Common characteristics include large flowers with parts arranged in threes: with six colored or patterned petaloid tepals (undifferentiated petals and sepals) arranged in two whorls, six stamens and a superior ovary. The leaves are linear in shape, with their veins usually arranged parallel to the edges, single and arranged alternating on the stem, or in a rosette at the base. Most species are grown from bulbs, although some have rhizomes. First described in 1789, the lily family became a paraphyletic "catch-all" (wastebasket) group of petaloid monocots that did not fit into other families and included a great number of genera now included in other families and in some cases in other orders. Consequently, many sources and descriptions labelled "Liliaceae" deal with the broader sense of the family.

Answer 2

Answer:

Common characteristics include large flowers with parts arranged in threes: with six colored or patterned petaloid tepals arranged in two whorls, six stamens and a superior ovary.

Explanation:

The features of the family liliaceae :

• It is a monocotyledonous plant.

• It is a perennial herb with underground bulbs.
• The leaves are basal, alternate, linear, exstipulate with parallel    venation.

• The inflorescence is solitary.

• The flower is bisexual and actinomorphic

Characteristics of Liliaceae Family:

1. Vegetative Characters:

Root: Fibrous root system.

Stem: Erect; Liliaceae includes perennial herbs which propagate through bulbs or rhizomes.

Leaves:  Alternate, simple; exstipulate; parallel venation.

2. Floral characters:

Inflorescence: Cymose- solitary; umbellate clusters.

Flower: Complete, bisexual, actinomorphic; hypogynous, perianth present.

Perianth: Indistinctive sepal and petal; six tepals (3+3), often united tepals: valvate aestivation.

Androecium: Six stamens in two whorls (3+3).

Gynoecium: Syncarpous, tricarpellary, trilocular, superior ovary with axile placentation.

Fruit: Mostly Capsule and sometimes berry.

Seed: Endospermic seeds.

The economic importance of the plants belonging to the Liliaceae family are:

Source of Medicine -Aloe vera, Smilax and Colchicine. Ornamental Plants -Lilium, tulips, Gloriosa and Ruscus

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