CONTENTS 
XXIV. An Unsolved Orchard Mystery . 48 
XXV. A Lily That We Eat. 50 
XXVI. Chaparral Is a Plague. 52 
XXVII. The Cabbage Cousins . 54 
XXVIII. The Turnip Cultivates Itself .. 56 
XXIX. Dates and Their Native Home .. 58 
XXX. Sentinels of the Desert . 60 
XXXI. The Pine Family Is Old. 62 
XXXII. The Beginning of Rubber. 64 
XXXIII. Lettuce Is Related to the Sun¬ 
flower . 66 
XXXIV. Wheat Is a Grass. 68 
XXXV. The Banana Plant Is All Leaves 70 
XXXVI. Tapping Rubber Trees. 72 
XXXVII. Thorns That Are Leaves . 74 
XXXVIII. Fungi Are the Clean-Up Squad . 76 
XXXIX. The Wax Berry Is a Poison Sign 78 
XL. Franco-American Grapevines ... 80 
XLI. The Barberry Bush Is an Outlaw 82 
XLII. Evergreens Are Built For Fight¬ 
ing Storms . 84 
XLIII. The Outcast Fungi . 86 
XLIV. Bananas Are Picked Green. 88 
XLV. Trees Invented Airplanes. 90 
XLVI. Apple Trees Go Crazy. 92 
XLVII. The Fruits of Palms . 94 
XLVIII. The Easter Lily’s Desert Cousin 96 
XLIX. The Stepmother Tree. 98 
L. Do Chollas Jump? . 100 
IV 
