There are a few beautiful wild orchid of Borneo that you can see here in Sabah, Sarawak or even in Kalimantan area. I put some of them below for your reference. Those are the most popular wild orchid in Borneo.
a. Phaleanopsis bellina - formerly known as violacea var. Borneo, is endemic to the island of Borneo and grows in Sarawak and Kalamantan. Plants are found in nature growing in a pendulous fashion, with 2-3 inch green flowers that have purple markings on the lower sepals. They are extremely fragrant and can bloom for several months, particularly in the spring and summer months. When these plants mature, they will develop large, wavy, shiny green leaves.
b. Phalaenopsis violacea - native to Malaysia and Indonesia. The plants are fast growing and are easier to grow than Phalaenopsis bellina. This Sumatran strain produces fragrant flowers that have the scent of bubble gum with a hint of cinnamon.
c. Dossinia marmorata - has dark green leaves with silver and white veins. Its small white flowers are borne on a spike, as are those of the Southeast Asian species Anoectochilus roxburghii, A. sikkimensis, Dossinia marmorata, Ludisia discolor, and Zeuxine strateumatica (also found in southeastern North America).
d. Slipper orchid - The most expensive wild orchid of Borneo.
f. Bulbopphyllum reticulatum - One of the rarest of the bulbophyllum with reticulated darker blue-green striations over a yellow green background.
g. Bulbophyllum lobbii - A beautiful species with oval foliage. The flowers are 2" to 3" in size.
Those are some of the most beautiful wild orchid of Borneo. Most of them are very beautiful and endemic to Borneo only. If you are interested to know in detail including many selected beautiful pictures of wild orchid in Borneo you can visit here >>> http://www.ibanorum.netfirms.com/orchid.htm
I love plants especially orchid. I got a few at home back in my hometown but it seems they are not doing so well in Kudat area due to the warm temperatures.