322 HARDY FLOWERS. 



Wahlenbergia Campanulaceae, Harebell Family. 



Waldsteinia ..,.*. Rosaceae, Rose ,, 



Wulfenia ....... Scrophulariaceae, Snapdragon ,, 



Xerophyllum ...... Liliaceae, Lily ,, 



Yucca ..... o .. 



Zapania . ... Verbenacese, Verbena , 



Zauschneria ... Onagracea;, Evening Primrose 



Zephyranthea . . Liliaceae, Lily 



Zietenia ...,.. Labiatte, Sal via ,> 



