A New Flower Color Variant of Hemerocallis middendorffii var. esculenta (Asphodelaceae)

A new flower color variant of Hemerocallis middendorffii var. esculenta is here described as f. luteola. Compared to the typical type with orangish yellow flowers, the new form is distinguished by its pale yel- low perianth, filaments and style. Only one individual of the new form was found in a wild population in Kyoto Prefecture, Japan. The color difference of the perianth was maintained in a common garden envi- ronment, and in two plants segregated from progeny established from wild seeds, indicating that the color variant has a genetic basis.