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Sunday, November 26, 2006

Cattleya



Cattleya
The 'Queen of Orchids' belong to a group which is the most flamboyant and colourful of all orchids. Cattleyas are among the most popular orchid genus grown. There are around 48 species and many more hybrids exist. Named after William Cattleya, they are from the tropical Americas Laelia's, which can be additionally found in the West Indies and Mexico.

Monday, November 20, 2006

Vanda Tricolour



Vanda Tricolour

This is a new orchid bloom at my home but i don't know the spesies...
Thanks Jonah Winn-Lenetsky for your information about this spesies....

Vanda


Vanda Coerulea


Vanda
The name Vanda came from Indian language. It means that people like these plants by their fragarance, color and the shape of flower, there are about 80 species plants, native to China, the Himalayas, Indonesia and nothern Australia. Vanda are monopodial orchids, and most are epiphytic. in Java, Indonesia, they can be found on trunks and branches of trees in the jungle. Sometime they grows as a lithophyte on rocks. All Vanda enjoy the light, and with sufficient sunlight the may bloom two or three times a year.

Monday, November 13, 2006

Calopogon Orchids


Calopogon orchids

Calopogon orchids are also known as grass pinks and bog orchids. They are some of the easiest wild orchids to grow outdoors to USDA zone 6 (maybe colder) and warmer zones. The orchid dies back to a corm for the winter and, despite its delicate beauty, it is a hardy orchid and a native plant.

These are pink varieties of Calopogon sp. (tuberosus/ pulchellus). The orchid's name comes from the Latin meaning "beautiful beard" which has golden tips.

Saturday, November 11, 2006

All About Orchids


Orchids
Orchids ( Orchidaceae family ) are the largest and most diverse of the flowering plant (Angiospermae) families, with over 800 described genera and 25,000 species. Some sources give 30,000 species, but the exact number is unknown since classification differs greatly in the academic world. Revisions of different genera occur on a monthly basis and this will increase with the growing use of genetic research and biochemistry. There are another 100,000+ hybrids and cultivars produced by horticulturists, created since the introduction of tropical species in the 19th century. The Kew World Checklist of Orchids includes about 24,000 accepted species. About 800 new species are added each year. Orchids, through their interactions with pollinators and their symbiosis with orchid mycorrhizal fungi, are considered by some, along with the grasses, to be examples of the most advanced (derived) floral evolution known.

All orchid species are protected for the purposes of international commerce under CITES as potentially threatened or endangered in their natural habitat, with most species listed under Appendix II. A number of species and genera are afforded protection under Appendix I, including all of Paphiopedilum and all of Phragmipedium. Many other species are protected by both international and national legislation, while hybrids are specifically exempted.

Naming
Orchids get their name from the Greek orchis, meaning "testicle", from the appearance of subterranean tuberoids of the genus Orchis. The word "orchis" was first used by Theophrastos (372/371 – 287/286 BC), in his book "De historia plantarum" (The natural history of plants). He was a student of Aristotle and is considered the father of botany and ecology.

Leaves
Orchid have leaves with parallel veins like any monocotyledon. Their size and shape can be an aid in identifying the orchid, since it reflects the taxonomic position.
The structure of the leaves corresponds to the specific habitat of the orchid. Species that typically bask in sunlight, or grow on sites which can be occasionally very dry, have thick, leathery leaves. The laminas are covered by a waxy cuticle. These retain their necessary water supply. Shade species, on the other hand, have tall, thin leaves. They cannot tolerate a drop in atmospheric humidity or exposure to direct sunlight. Between these two extremes, there is a whole range of intermediate forms.

Root
Orchids Cypripedium species like Oncidium and Dendrobium only having root hair meanwhile monopodial vanda having hair root and aerial roots entirely above the ground.