XXIV REGISTER OF ILLUSTRATIONS 



FIG. PAGE 



41 Showing leaf- attachment of Sabal Palmetto *1 



42 Twigs of three hickories,— Hicoria microcarpa, H. ovata, H. glabra 42 



43 Twigs of willows,— Salix cordata, S. rostrata, S. discolor 43 



44 Vernation of crab apple, Pyrus baecata "^5 



45 Same 47 



46 Flower-cluster of apple 49 



47 Flowers of apricot 49 



48 Section of flower-bud of apricot 50 



49 Opening bud of pear 50 



50 Vernation of Korway maple, Acer platanoides 51 



51 Vernation of black currant, Ribes nigrum 52 



52 Bud of Rhododendron Catawbiense 53 , 



53 Flowering of the quince 54 



54 Twig of quince 55 



55 Branch of hickoi-y, Hicoria microcarpa 56 



56 Vernation of honeysuckle 58 



57 Vernation of peach 58 



58 Plaited leaf of blue palmetto, ChamEerops hystrix 59 



59 Vernation of tulip tree, Liriodendron, Tulipifera 59 



60 Vernation of horse-chestnut 60 



61 Vernation of a fern 61 



62 Linnaeus' diagrams of vernation 62 



63 Leaves of Gralium Aparine 64 



64 Phyllotaxy of elm 66 



65 Phyllotaxy of plum 66 



66 Phyllotaxy of plum 67 



67 Fasciation of Ailanthus glandulosus 68 



68 69 Expansion of bark of elm 70 



70 Record of an apple twig 74 



71 Leaf of dewberry, Rubus trivialis 78 



72 Leaf of Lombardy poplar, Populus nigra var. Italica 79 



73 Leaves of apple 79 



74 Leaf of wheat 80 



75 Leaves of Lonicera ciliata 81 



76 Leaf of black walnut, Juglans nigra 81 



77 Leaves of live oak, Quercus virens 82 



78 Leaf of willow, Salix adenophylla 82 



79 Leaf of Virginia creeper, Ampelopsis quinquef olia 83 



80 81 Leaves of wild grape, Vitis bicolor 84 



82 Leaves of garden bean., Phaseolus vulgaris 85 



83 Leaf of Canada thistle, Cnicus arvensis 86 



84 Leaf of poison ivy, Rhus Toxicodendron J 88 



85 Leaf of poison sumac, Rhus venenata 89 



86 Leaf of Jeffersonia diphylla 89 



87 Leaf of Dicentra Canadensis 90 



88 Leaf of Acacia Axabica 91 



89 Shoot of Currant tomato, Lycopersicum pimpinellifolium »2 



90 Leaf of Mikado tomato 93 



