Saturday, July 31, 2010

LILLY


Kingdom : Plantae

(unranked) : Angiosperms

Phylum : Anthophyta

(unranked) : Monocots

Order : Liliales

Family : Liliaceae

Subfamily : Lilioideae

Genus : Lilium L.

The genus Lilium are herbaceous flowering plants growing from bulbs. Most species are native to the temperate northern hemisphere. They comprise a genus of about 110 species in the lily family (Liliaceae).

They are important as large showy flowering garden plants. Additionally, they are important culturally and in literature in much of the world. Some species are sometimes grown or harvested for the edible bulbs.

The species in this genus are the true lilies. Many other plants exist with "lily" in the common English name, some of which are quite unrelated to the true lilies.

Botony

Lilies are leafy stemmed herbs. They form naked or tunic-less scaly underground bulbs which are their overwintering organs. In some North American species the base of the bulb develops into rhizomes, on which numerous small bulbs are found. Some species develop stolons. Most bulbs are deeply buried, but a few species form bulbs near the soil surface. Many species form stem-roots. With these, the bulb grows naturally at some depth in the soil, and each year the new stem puts out a

dventitious roots above the bulb as it emerges from the soil. These roots are in addition to the basal roots that develop at the base of the bulb.

Most cool temperate species are dormant in winter, while some are dormant in dry summer and sprout with the autumun rain and are bolting after the chilling of winter in the spring.

Most species are deciduous, but a few species (Lilium candidum, Lilium catesbaei) bear a basal rosette of leaves during dormancy.

Seeds ripen in late summer. They exhibit varying and sometimes complex germination patterns, many adapted to cool temperate climates.

The large flowers have six tepals. They

are often fragrant, and come in a range of colours ranging through whites, yellows, oranges, pinks, reds and purples. Markings include spots and brush strokes. The plants are late spring or summer flowering.

Some species formerly included within this genus have now been placed in other genera. These genera include Cardiocrinum, Notholirion, Nomocharis and some Fritillaria.

Uses

Many species are widely grown in the garden in temperate and sub-tropical regions. Sometimes they may also be grown as potted plants. A large number of ornamental hybrids have been developed. They can be used in herbaceous

borders, woodland and shrub plantings, and as a patio plant.

Some lilies, especially

Lilium longiflorum, as well as a few other hybrids, form important cut flower crops. These tend to be forced for particular markets; for instance, L. longiflorum for the Easter trade, when it may be called the Easter lily.

Lilium bulbs are starchy and edible as

root vegetables,

although bulbs of some species may be very bitter. The non-bitter bulbs of L. lancifolium, L. pumilum, and especially L. brownii (Chinese: 百合 ; pinyin: bǎihé gān) and Lilium davidii var unicolor cotton are grown at large scale in China

as a luxury or health food, most often sold in dry form. They are eaten especially i

n the summer, for their ability to reduce internal heat. They may be reconstituted and stir-fried, grated and used to thicken soup, or processed to extract starch. Their texture and taste draw comparison with the potato, although the individual bulb scales are much smaller.

Lilies are used as f

ood plants by the larvae of some Lepidoptera species including the Dun-bar.

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