DISCOREACEAE (YAM FAMILY) 



3 a Leaves not glaucous, channeled 



HOOP-PETTICOAT DAFFODIL. (N. bulbocbdium*) 

 b Leaves glaucous, flat 4 



4 a Crown as long as or longer than the perianth lobes; 



flowers 1-2 in. broad .. DAFFODIL. (N. pseudo-narcissus.*) 

 b Crown %-% as long as the perianth lobes; flowers 



2-4 in. broad. . .SUPERB DAFFODIL. (N. incompardbilis*) 



5 a Flowers 2-5, yellow JONQUIL. (N. jonquila*) 



b Flowers 4-12, white. .. .COMMON NARCISSUS. (N. tazetta.*) 



5 H YMENOCALLIS SEA DAFFODIL. (H. calathlna*) 



6 AMARYLLIS AMARYLLIS. (A. belladonna*) 



7 AGAVE CENTURY PLANT. (A. americana.*) 



8 POLIANTHES TUBEROSE. (P. tnberbsa*) 



9 ZEPHYRANTHES FAIRY LILY. (Z. carindta*) 



8 DIOSCOREACEAE. Yam Family. 

 i DIOSCOREA. 

 i a Wild species ; flowers greenish-yellow 



WILD YAM -ROOT. (D. villbsa.) 

 b Cultivated species; flowers white 



CINNAMON VINE. (D. divaricdta.*) 



9 IRIDACEAE. Iris Family. 

 i CROCUS. 



1 a Flowers yellow CLOTH-OF-GOLD CROCUS. (C. susidnus*) 



b Flowers not yellow 2 



2 a Flowers produced in autumn; branches of style red 



SAFFRON CROCUS. (C. satlvus.*) 

 b Flowers produced in spring 3 



3 a Leaves glaucous beneath ; tube of perianth not yellow 



inside COMMON CROCUS. (C. vernus.*) 



b Leaves not glaucous beneath ; tube of perianth yellow 



inside SCOTCH CROCUS. (C. biflbrus*) 



2 IRIS. 



1 a Wild species 2 



b Cultivated species 3 



2 a Leaves %-% in. broad; outer perianth parts 1-2 in. 



long SLENDER BLUE FLAG. (I. prismdtica.) 



b Leaves %-i in. broad; outer perianth parts 2-3 in. long 



LARGE BLUE FLAG. (I. verslcolor.) 



3 a Average leaf about % in. broad. SIBERIAN IRIS. (I. fibirica*) 

 b Average leaf i in. or more broad 4 



4 a Outer parts of perianth covered with hairs 



FLEUR-DE-LIS. (1. germdnica*) 

 b Outer parts of perianth not covered with hairs 5 



137 



