Lily seed germination types

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Lilies seed germination is classified as either epigeal or hypogeal. These classifications may be further refined as immediate or delayed. Whether a lily is epigeal or hypogeal may be related to survival strategies developed according to the climate where the lily originated. Epigeal lilies evolved in moderate climates. Hypogeal lilies evolved in harsher habitats where it would be advantageous to store food in a bulb, and later send up leaves in the spring. [1]

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Epigeal Lilies

Asiatic lilies include species of Lilium lancifolium (syn.tigrinum), L. cernuum, L. davidii, L. maximowiczii, L. macultum, L. hollandicum, L. amabile, L. pumilum, L. concolor, and L. bulbiferum. Epigeal trumpet lily species are L. leucanthum, L. regale, L. sargentiae, L. sulphureum, L. rosthornii and L. henryi. Many interdivisional hybrids also fall into the epigeal category. Epigeal lilies germinate under moist, warm conditions (approximately 70°F) in one stage, taking about 14 days. One stage means that they send up a leaf right away.

Hypogeal Lilies

Oriental lily species, such as L. auratum, L. speciosum, L. nobilissimum, L. rubellum, L. alexandrae, and L. japonicum and Martagon species L. martagon, L. hansonii, L. medeoloides, and L. tsingtauense, are all hypogeal. Hypogeal lilies require two or more stages with variations of temperature particular to each stage. For hypogeal lilies, the first stage of germination takes place entirely underground, where the bulb is created. Hypogeals require a warm period of 3 months at 70°F, followed by a 3-month period at 40°F. A juvenile leaf appears in the second stage. The tiny bulbs are then planted in a warm area, usually outdoors.

Double Hypogeal Lilies

Double hypogeal lilies are the hardest to germinate and need multiple alternating periods of warm and cold. The exact sequence varies by species. Lilies that require these special conditions are often adapted to very specific conditions, and may be rare.

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<span class="mw-page-title-main">Cotyledon</span> Embryonic leaf first appearing from a germinating seed

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Lilium is a genus of herbaceous flowering plants growing from bulbs, all with large prominent flowers. They are the true lilies. Lilies are a group of flowering plants which are important in culture and literature in much of the world. Most species are native to the northern hemisphere and their range is temperate climates and extends into the subtropics. Many other plants have "lily" in their common names, but do not belong to the same genus and are therefore not true lilies.

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<span class="mw-page-title-main">Plant propagation</span> Process in growing new plants from a variety of sources

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Lilium regale, called the regal lily, royal lily, king's lily, or, in New Zealand, the Christmas lily, is a species of flowering plant in the lily family Liliaceae, with trumpet-shaped flowers. It is native to the western part of Sichuan Province in southwestern China, and cultivated elsewhere as an ornamental. It was introduced to England in 1903 by Ernest Henry Wilson.

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<span class="mw-page-title-main">Epigeal germination</span>

Epigeal germination is a botanical term indicating that the germination of a plant takes place above the ground. An example of a plant with epigeal germination is the common bean. The opposite of epigeal is hypogeal.

In horticulture, stratification is a process of treating seeds to simulate natural conditions that the seeds must experience before germination can occur. Many seed species have an embryonic dormancy phase, and generally will not sprout until this dormancy is broken.

<span class="mw-page-title-main">Hypogeal germination</span>

Hypogeal germination is a botanical term indicating that the germination of a plant takes place below the ground. An example of a plant with hypogeal germination is the pea. The opposite of hypogeal is epigeal.

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