Nic van den Bosch's Horsemanure Site
Horse manure is used as an excellent orchid growing medium. Nic van den Bosch. Tasmania, Australia.
Orchid culture information concentrating on the genus Cattleya. John Hughes. Bundaberg, Queenland, Australia.
Concise information on the 134 genera of orchids currently known to occur on the island of New Guinea. Multiple contributors. Port Moresby, Papua New Guinea.