Cyclamen

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Cyclamen

  1. 1. Cyclamen
  2. 2. Cyclamen  is a  genus  of 23  species  of  flowering plants , traditionally classified in the family  Primulaceae , but in recent years reclassified in the family  Myrsinaceae  (Kallersjo et al. 2000). Cyclamen are native to the  Mediterranean  region from  Spain  east to  Iran , and also in  Northeast Africa  in areas such as  Somalia . Each leaf or flower grows on its own stem, which shoots up from the hypocotyl. The variegation is thought by some botanists to be a form of natural disruptive  camouflage  to reduce  grazing  damage by  animals . The hypocotyl grows leaves and flowers on stems, either one flower or one leaf per stem. The stem for leaves and flowers appears identical except in height. The leaves grow on stems of around 6 cm - 9 cm height. The leaves grow on stems up to 8 cm tall and form a tightly bunched circular disk of leaves. Leaves are rounded to triangular, 2-10 cm long and 2-7 cm broad, and usually  variegated  with a pale silvery horseshoe-shaped mark round the middle of the leaf.The top of the leaf is split with the split extending to the connection with the stem. A common cultivar available in western shops has a leaves with a (slightly stretched) heart shape. The various cultivars produce flowers with either four or five united  petals growing from the edge of the flower bud. The petals are usually reflexed back 90° to 180° to be erect above the flower bud, and vary from white through pink to red-purple, most commonly pale pink. The  fruit  is a five-chambered capsule 1-2 cm diameter, containing numerous sticky  seeds  about 2 mm diameter. Natural seed dispersal is by ants , which eat the sticky covering and then discard the seeds. Cyclamens are used as food plants by the  larvae  of some  Lepidoptera  species including  The Gothic . Cyclamen typically grow in dry  forest  or scrub, where they are at least partly shaded from intense sunlight. The species vary greatly in winter  frost tolerance, with the hardiest species ( C. hederifolium ) tolerating temperatures down to -15°C (5 °F), or -30°C (-22 °F) if covered by  snow . Others, such as  C. somalense  from northeastern Somalia, do not tolerate any frost at all. Certain climate change models suggest many species could become extinct in their current range within the next 50 years (Yesson & Culham 2006). The cyclamen is also the national flower of  Israel .
  3. 21. Created by : pps33 Mikis Theodorakis - Kyklamino ( Cyclamen ) Song:

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