Rabu, 05 April 2017

Nama : Helda Ernawati
NPM : 13213995
Kelas : 4EA14


Orchid

Orchid is one of ornamental plants in the form of parasite. It has been known since 200 years ago but it has been cultivated in Indonesia since last 50 years. They mostly found in the tropical area. Based on the nature of their life, it can be divided into three groups, namely Ephytis, Semi Ephytis, and Terrestris. Ephytis is the orchid which lives on other plants. Semi Ephytis is the orchid which lives on the other plants but do not damage the main plant. While Terrestrial is the orchid which grows on the ground.
They have beautiful and unique flowers that are different from others. It arranged as a compound  system appearing from its stalk. This flower shaped as a bilateral symmetry. Its petals have the same color with the crown. The leaves are quite thick and usually elongated oval. Its thick leaves serves to store water. Its stem is jointed and thick. This stem is coated by wax layer which serves to prevent water evaporation. It has green fruit and shaped like a capsule. Inside its fruit, there are seeds which are very small and lightweight so it is easy to get carried away by the wind to the other places. Its seed will only grow if stick in the appropriate media because they do not have a storage to keep reserves food.
They have so many types with variety of shapes and colors. The types of them such as: Vanda or also known as a cut flower; orchid which has a great flower known as Grammatophyllum; orchid soil or Spathyphyllum and others. Besides as ornamental plants, they can also be used as a mixture of herbs, ingredients perfume or hair oils.
They will grow well when exposed to sufficient sunlight and have a lot of food sources. The media used to plant them are charcoal and brick for ephytis orchid and semi ephytis, compost and chaff for terrestrialorchids, while broken tiles and chaff are the media for semi terrestrial orchid.

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