JOURNAL 



OF 



The New York Botanical Garden 



Vol. XXXII February, 1931 No. 374 



NOTES ON NEW HYBRID DAYLILIES 



The project of hybridization and selective breeding with day- 

 lilies (Hemerocallis) has steadily progressed since a popular re- 

 port of this work was published in this Journal five years ago. 1 

 The collection of species and horticultural clons has been extended 

 until it now includes members of all but a very few of the known 

 daylilies. Through the assistance of various persons in China and 

 Japan, living plants and viable seeds of wild daylilies have been 

 obtained from several widely separated regions in the Orient. No 

 two of these collections have been alike and in no case have the 

 plants obtained duplicated or even closely resembled the type of 

 the same species already in cultivation. Among the plants ob- 

 tained there has been one new and distinct species which has been 

 named Hemerocallis multifiora 2, 3 and also a new rose-flowered 

 variety designated as Hemerocallis fulva var. rosea.*- 5 These re- 

 sults justify the continued effort to obtain living plants and seeds 

 of wild daylilies from as many localities as possible. There has 

 been complete cooperation in the issuance of permits for introduc- 

 tion by the Plant Quarantine and Control Administration of the 

 U. S. Dept. of Agriculture, and almost always the living plants 

 survive shipment when they are sent in autumn or winter during 

 their period of dormancy. 



1 New daylilies. Jour. N. Y. Bot. Gard. 26: 169-178. Au 1925. 



2 Hemerocallis multifiora. Addisonia 14: pi. 464. Je 1929. 



3 The new species Hemerocallis multifiora. Jour. N. Y. Bot. Gard. 31: 

 34-39. F 1930. 



4 Hemerocallis fulva rosea. Addisonia 15: pi. 484. Mr 1930. 



5 The fulvous daylilies — II. The wild fulvous daylilies of the Orient. 

 Jour. N. Y. Bot. Gard. 30: 185-194. Au 1929. 



2K 



