<P> The name Hemerocallis comes from the Greek words ἡμέρα (hēmera) "day" and καλός (kalos) "beautiful". </P> <P> In the Victorian language of flowers, the day lily symbolizes coquetry . </P> <P> The World Checklist of Selected Plant Families recognizes 19 species as of September 2014: </P> <Ol> <Li> Hemerocallis citrina Baroni (syn . H. altissima Stout, H. coreana Nakai) - China, Japan, Korea, Russian Far East </Li> <Li> Hemerocallis coreana Nakai - Japan, Korea, Shandong Province in China </Li> <Li> Hemerocallis darrowiana S.Y. Hu - Sakhalin Island in Russia </Li> <Li> Hemerocallis dumortieri E. Morren - China, Japan, Korea </Li> <Li> Hemerocallis esculenta Koidz . (syn . H. pedicellata Nakai)>) - China, Japan, Russian Far East </Li> <Li> Hemerocallis forrestii Diels - Sichuan + Yunnan Provinces in China </Li> <Li> Hemerocallis fulva (L .) L. (H. sempervirens Araki, H. sendaica Ohwi and H. aurantiaca Baker are now treated as varieties of this species)--Orange Daylily, Tawny Daylily, Tiger Lily, Ditch Lily - China, Japan, Korea; naturalized in Europe, North America, New Zealand, Indian Subcontinent; considered an invasive weed in some places </Li> <Li> Hemerocallis hakuunensis Nakai (syn . H. micrantha Nakai) - Korea </Li> <Li> Hemerocallis hongdoensis M.G. Chung & S.S. Kang - Hongdo Islands of South Korea </Li> <Li> Hemerocallis lilioasphodelus L. (syn . H. flava (L .) L .)--Lemon Lily, Yellow Daylily - China, Mongolia, Russian Far East, Siberia, Kazakhstan; naturalized in Europe and North America </Li> <Li> Hemerocallis littorea Makino - Korea, Japan </Li> <Li> Hemerocallis middendorffii Trautv . & C.A. Mey . (includes H. exaltata Stout as H. m. var . exaltata) - China, Japan, Korea, Russian Far East </Li> <Li> Hemerocallis minor Mill . (syn . H. sulphurea Nakai) - China, Mongolia, Korea, Russian Far East, Siberia </Li> <Li> Hemerocallis multiflora Stout - Henan Province in China </Li> <Li> Hemerocallis nana W.W. Sm . & Forrest - Yunnan Province in China </Li> <Li> Hemerocallis plicata Stapf - Sichuan + Yunnan Provinces in China </Li> <Li> Hemerocallis taeanensis S.S. Kang & M.G. Chung - Korea </Li> <Li> Hemerocallis thunbergii Barr (syn . H. serotina Focke, H. vespertina Hara) - Japan </Li> <Li> Hemerocallis yezoensis H. Hara - Japan, Kuril Islands </Li> </Ol>

How many different types of daylilies are there