Following on from the issue of Wild Orchids of Taiwan postage stamps in November 2017 and in January and February 2018, Chunghwa Post is offering a set of four stamps featuring the Phalaenopsis equestris, Odontochilus nanlingensis, Bulbophyllum retusiusculum, and   Bulbophyllum griffithii. The stamps are as follows:
1. Phalaenopsis equestris (NT$7): This species is parasitic. Its pale purple flowers are 3 cm across. The sepal is oval, the petals rhomboid. It flowers in summer and is only found in Taiwan in small patches on the forested craggy slopes of Little Orchid Island.
2. Odontochilus nanlingensis (NT$9): This orchid grows on the ground, generally with 2 or 3 flowers. The white petals have a reddish hue with reddish-brown stripes and marks. It flowers in spring and is found at heights of 500 to 1,000 meters in damp broadleaved forest from Wulai to Nanao.
3. Bulbophyllum retusiusculum (NT$10): A miniature parasitic orchid with colorful petals.  Its upper lip is dark red, while the sides are yellow and 1.5 cm long. The flowers are generally arranged in a fan-shape, like a small circular comb, so it is also called Yellow Comb Orchid. It flowers in autumn and winter and is common in cool damp evergreen broadleaved forest in the mid to low altitude mountains of Taiwan.
4. Bulbophyllum griffithii (NT$20): A parasitic orchid with single flower, 0.8 to 1.2 cm across, whose petals are parchment white densely flecked with purple. It flowers in autumn, and is found in cool damp forest in Xitou (Nantou County), Fenchihu (Chiayi) and Caoling (Yunlin).

This set of stamps is planned by Associate Researcher Shih-wen Chung in the Taiwan Forestry Research Institute of the Council of Agriculture of the Executive Yuan, and drawn by the ecology painter Mr. Chi-jen Lai. The stamps are printed by Central Engraving and Printing Plant in color offset. By-issues including a first-day cover, folders with and without crystal mounts, and a loose-leaf album page will be released along with the stamps and will go on sale on August 20, 2018. A pre-canceled FDC with a NT$7-denominated stamp or a full set of stamps and a stamp folio will go on sale on August 22, 2018, the stamps’ date of issuance.

To purchase the relative philatelic products, please go directly to the post office branches, Postal Museum or order on line at https://stamp.post.gov.tw.