Diversity and Distribution of Eulophia in Uganda, East Africa

Abstract

This paper presents a study of the diversity and distribution of the Genus Eulophia, of the family Orchidaceae, in Uganda. Eulophia comprises varied patterned and coloured flowers; is being hybridized and has a high potential in the horticulture industry. Using data from available databases in Makerere University Institute of Environment and Natural Resources †MUIENR (2000), Royal Botanical Gardens, Kew and Leapendemics 1995 and from the herbarium collections, together with information from the field surveys of selected wetlands, a checklist, and distribution map were developed. This allowed for mapping of species distribution ranges and identification of areas of high Eulophia species diversity. The distribution maps of this genus are expected to open new avenues of botanical research, and also to make informed decisions on maintenance, restoration or re†introductions in the future. The results show that there are thirty (30) species of Eulophia in Uganda. Their latitude and longitudinal ranges, altitude and habitats where they thrive are presented. Ground truthing for their presence was done with the major focus being in wetlands. From the field surveys, eight species were recorded. The paper concludes by highlighting that despite the rampant alterations in the habitats where Eulophia grows, some still are existent though their numbers are small in each patch. This is a major challenge to continued survival and sustainable management of this species.