EXPLANATION OF PLATES. 



PLATE XV. 



Fig. 



78. Section lengthwise of mature Pear, showing the " Core " towards the crown end> 



the strands of vascular bundles in the fleshy portion, and the "Stone-cells" 

 dotting the flesh . . . . . . * . . . . slightly reduced 



79. Section crosswise of mature Pear through seed-vessels, showing " Stone-cells " 



densely surrounding " Core " as well as scattered through flesh. 



80. Section crosswise of mature Pear, similar to preceding, but only showing the central 



"Core," with two bundles alongside of each other between the seed-vessels. 

 The pair of bundles adjoining the inner face oi each seed-vessel represent the 

 forking branch from each of the five intermediate main bundles x 2 



81. Section lengthwise of young Pear, showing the elongated fleshy portion below the 



seed-vessels. 



82. Section crosswise through seed-vessels, showing numerous stone-cells. 



XIII. -FIBRO- VASCULAR SYSTEM OF SKELETON AND VESSELS 



OF APPLE AND PEAR. 



(Figs. 83-100.) 



Fig. 



83. Vascular system of Pear as seen when flesh is removed. 



84. Vascular system of same spread out so as to expose the " Core." 



85. Three main bundles shown supplying individual seed-vessels. The primary bundles 



opposite to the seed-vessels branch inwardly, and supply the dorsal or outer 

 face, while those intermediate supply the ventral or inner face. Each vascular 

 bundle also branches outwardly, forming a net-work with plume-like branchlets 

 given off from each mesh of the net to the periphery. 



