View source for Number of melliferous plants and important literature - Ethiopia

'''Ethiopia:''' The most important melliferous plants are well documented. '''Fichtl & Adi''' (1994) described over '''500''' species of melliferous plants in Ethiopia (400 herbs/shrubs and 100 trees). <ref>Fichtl, R., & Adi, A. (1994). Honeybee Flora of Ethiopia. Margraf Verlag Germany.</ref> Another important book by '''Admasu et al.''' (2014) describes nearly '''400''' important species. <ref>Admasu, A., Kibebew, W., Ensermu, K., & Amssalu, B. (2014). Honeybee Forages of Ethiopia. Holeta Bee Research Center, Ethiopia.</ref> Abera (2017) also describes important plants focussing on the south-eastern region of Ethiopia. <ref>Abera, H. D. (2017). Identification of Honey Source Bee Floras During Major and Minor Honey Harvesting Seasons in Jimma Zone, Southwest Ethiopia. Journal of Environment and Earth Science. 7(3), 25-32.</ref> Assemu et al. (2013) listed the 27 most important melliferous plants for the western Amhara region and summarized them in a floral calendar. <ref>Assemu, T., Kerealem, E., & Adebabay, K. (2013). Assessment of Current Beekeeping Management Practice and Honey Bee Floras of Western Amhara, Ethiopia. Inter J Agri Biosci, 2(5), 196-201.</ref> Nevertheless, a floral calendar covering all regions of Ethiopia does not exist! In addition a book entitled "Atlas of honey plant pollen grain" was published by Nuru (2007), containing pictures and descriptions of pollen grains and their morphological structure. <ref>Amssalu, B. (2016). Apiculture Research Achievements, Challenges and Future Prospects in Ethiopia. In: Agricultural Research for Ethiopian Renaissance Challenges, Opportunities and Directions. Proceedings of the National Conference on Agricultural Research for Ethiopian Renaissance. Addis Ababa, Ethiopia.</ref>

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