List of Illustrations. 



The mark *** which appears in the list designates the plates that are pro- 

 duced in colour. The number of the page given for each of these coloured 

 plates is that of the printed ^Agt faced hy the coloured plate in each case. 



PLATE. 



I SEEDS AND EMBRYOS. 



II. MAPLE PLANTLET. 



III. SECTION CF WOOD, 



IV. PINE SEEDLING. 



V. BUDS. • 



VI. OAK SEEDLING. 



VII. GREAT-FLOWERED MAGNOLIA. Magnolia fattida, 

 VIII. SMALL MAGNOLIA. Magnolia Virginiana, 



IX. SOUR GUM. Nyssa sylvatica, 



X. WATER TUPELO. Nyssa biflora, . 



XI. BLACK ALDER. Hex verticillata, . 



XII. WILD YELLOW PLUM. Prunus Americana, 

 Xlllt BUTTON-WOOD. Platanus occidentalism 

 XIV- RIVER BIRCH. Betula nigra, 



XV. SMOOTH ALDER. Alnusrugosa, . 



XVI. AMERICAN HORNBEAM. Carfinus Caroliniana, 



XVII. BLACK WILLOW, ^alix iif,^r,t, 



XVIII. WESTERN BLACK WILLOW, ^'^'alix amygdaloides, 



XIX. SHINING WILLOW. Salix lucida, . 



XX. BEBB'S WILLOW. Salix Bebbiana, 



XXI. SILKY WILLOW, -'talix sericea, 



XXII. WEEPING WILLOW. Salix Babylonica, . 



XXIII. YELLOW WILLOW. Salix alba vitellina, 



XXIV. BRITTLE WILLOW. Salix fragilis. 



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