Archive for July, 2010

Meliorchis caribea- The first orchid fossil discovered.

Posted in Meliorchis with tags , , , on July 30, 2010 by orchideae

Does orchid plant material fossil exists?

YES!!! It does exist but is extremely rare. Even fossil plant materials are not common as the original organic material has decayed, leaving only cavity in amber. The first orchid fossil of Meliorchis caribea is discovered in 2007.

Photobucket

Typical Jurassic forest setting

Photobucket

Plant and insect materials trapped in pieces of amber.

Photobucket

Close up of plant materials trapped in amber.

It has been reported in 2007 that the first orchid fossil has been found in amber. The orchid species is identified as Meliorchis caribea which has extinct from our world. This ancient species has been identified by Santiago R. Ramírez of Harvard University and colleagues that it belongs to the genus Goodyerinae.

The important discovery has indicated that the orchids arose between approximately 70 to 80 million years ago. Experts have used the fossil pollen grains to estimate the ages of the family tree of orchidaecea.

Link to the holotype of Meliorchis caribea.

Link to the BBC article on the discovery of the orchid fossil.

Advertisements

Coelogyne xyrekes

Posted in Coelogyne, Orchids with tags , on July 21, 2010 by orchideae

Coelogyne xyrekes is found in the montane forest of Penisular Malaysia, Southern Thailand and Sumatra at an elevations of 700 to 1900 m.

It can do releative well in Singapore. The plant blooms in the cooler months, successively, with a few light salmon pink flowered inflorescence with a tubluar, acute sheath all arising from the center of a new growth.

Photobucket

Coelogyne xyrekes.

Photobucket

Close up of the flowers of Coelogyne xyrekes.

Photobucket

Side profile of the flowers.

Photobucket

Close up of the lip.

Photobucket

Dimension of the flower.

Photobucket

Dimension of the flower.