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Several horticultural varieties which have the nocturnal H. 

 citrina in their parentage are decidedly nocturnal but somewhat 

 less so than H. citrina. Of these Citronella, Chrysolora, Calypso, 

 Gold Standard, and Gold Imperial may be mentioned. Calypso, 

 especially, has an excellent habit of growth, numerous scapes 

 and flowers, and the flowers are of large size, full, and a delicate 



Figure ,\. Plant of the Calypso Daylily. There are excellent foliage 

 and numerous scapes and flowers, but t he flowers are night-blooming. 



Photo taken at midday on a warm sunny day. 



pale lemon-yellow. The flowers are fully open in the early 

 evening and throughout the night but they are open as late as 

 midday only when the temperatures are lower than usual or the 

 da) cloudy. Such a variety will provide attractive masses of 

 flower color during the evening. 



