A partial revision of Allium (Amaryllidaceae) in Korea and north-eastern China

A taxonomic revision of Allium in Korea and north-eastern China is presented based on critical observations of wild populations and extensive herbarium material. Species delimitations are re-evaluated on the basis of macro- and micromorphological and cytological characters, resulting in the recognition of 24 species comprised of 26 taxa, among which, four species and two varieties are endemic to Korea, and one species is endemic to China. One previously recognized species is placed into synonymy: A. deltoidefistulosum (under A. sacculiferum). Allium spirale and A. tenuissimum are newly recorded for Korea, and the common names 'Cham-du-me-bu-chu' and 'Ae-gi-sil-bu-chu' are given for these species, respectively. Lectotypes are designated for A. deltoidefistulosum, A. monanthum and A. ophiopogon. Illustrations, photographs and a key to species and varieties are provided in addition to complete descriptions including information on nomenclatural types, synonymies, chromosome numbers, distributions, habitat and specimens examined. This study will provide sound foundation for a future global monograph and the systematic understanding of Allium.

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