TWO ENDEMIC AND CRITICALLY ENDANGERED RYUKYU ISLAND LILIES LILIUM NOBILISSIMUM AND LILIUM UKEYURI (LILIACEAE).

Summary: Three white trumpet‐flowered species of Lilium native to the Ryukyu Islands, Japan, L. longiflorum and the critically endangered endemics L. nobilissimum and L. ukeyuri have been extensively confused in the literature. These are fully described, their history and nomenclature are discussed and a key and full descriptions are provided for identification. Lectotypes are designated for the names Lilium harrissii Carrière, L. japonicum f. nobilissimum Makino, L. longiflorum var. suaveolens Edwards, L. longiflorum var. wilsonii T. Moore and L. ukeyuri R. Hogg. A neotype is designated for the name L. eximium Siebold ex Courtois. [ABSTRACT FROM AUTHOR]