On offer is a seedling Bulbophyllum schillerianum established on a brown treefern mount.
B. schillerianum is an epiphyte which grows in mangrove swamps in Queensland and NSW. It is an easily grown orchid which thrives under shade cloth with no special care here in Victoria. The flowers are small and come in a range of orange shades.
Images show examples of B. schillerianum flowers and a plant which is typical of those on offer.