ITO, Y., & TANAKA, N. (2013). Additional Potamogeton hybrids from China: Evidence from a comparison of plastid trnT-trnF and nuclear ITS phylogenies. Acta Phytotaxonomica et Geobotanica, 64(1), 15-28.
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Thomas HoremanはJoachim Schulze, Michael Bleherとともにブラジルを探検した.Schulzeによればこの探検は1967年8月のことである.Schulzeはこの時採集された植物園向けの標本の写真を撮影,出版しており,これらの標本のラベルは11.8.1967とある.したがって,E. horemanii, E. opacus, E. osirisのラベルは11. 8. 1967であって8. 11. 1967ではない.E. horemaniiはE. uruguayensisのシノニムである.
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