TABLE OF CONTENTS. Vll 



.... 351 

 liXIV. Aceraceae ^^^ 



J XV. Balsaminaceae 



L,XVI. Ehamnaceae ^^^ 



LXVII. Vitaceae ^^^ 



LXVIIf. Tiliaceae ^^^ 



LXIX. Malvaceae ^^2 



liXX. Hypericaceae ^^^ 



LXXI. Cistaceae ^^^ 



LiXXII. Violaceae ^^^ 



L.XXIII. Cactaceae '^^2 



IjXXIV. Thymelaeaceae ^^^ 



LXXV. Elaeagnaceae '^^^ 



LXXVL. Lythiaceae ^^^ 



LXXVII. Oenotheraceae ^^^ 



I.XXV1II. Halorrhagidaceae [^^^ 



LXXIX. Araliaceae '^^'^ 



LXXX. Umbelliferae ^^^ 



LXXXL Cornaceae ^^2 



Dicotyledones—Metachlaniydeae ^^2 



LXXXII Pirolaceae ^^^ 



LiXXXIII. Ericaceae ^^^ 



L.XXXIV. Primulaceae ^^^ 



LXXXV. Oleaceae ^^^ 



liXXXVI. Gentianaceae ^2^ 



liXXXVII. Apocynaceae ^22 



LXXXVni. Asclepiadaceae ^27 



L.XXXIX. Convolvulaceae ^^J^ 



XC . Polemoniaceae 



XCI. flydrophyllaceae ^^^ 



XCII. Borraginaceae ^^2 



XCIII. A'erbenaceae ^^^ 



XCIV. Labiatae ^^g 



XCV. Solaoaceae ^^^ 



XCVI. Scrophulariaceae ^^^ 



XCVII. Lentibulariaceae , 



XCVIII. Orobanchaceae 



XCIX. Plantaginaceae ^^g 



C. Rubiaceae 2 



CI. Caprifoliaceae ^^ 



ClI. Adoxaceae 



CHI. Valerianaceae ^^^ 



CIV. Cucurbitaceae ^^^ 



C V. Campanulaceae 



CVI. Compositae ^^^ 



Summary g-. 



The Valley of the Minnesota kivek _^^ 



Location of the valley ^ 



General topographical features ^^^ 



Character of the basin 



Distribution of forest and prairie ^ 



Soils ' 



