PLATE 31 



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187 



188 





184. Cymbidium lowianum. Transverse section of root, showing vascular cylinder and part of surrounding cortex, 



showing one very rare, slightly sclerosed cell in cortex, narrow endodermal cells, 16 phloem patches, 

 and large vasa. 



185. Cymbidium ebumeum. The same, showing numerous thickly sclerosed cells, deeper endodermal cells, 18 phloem 



patches, and small vasa. 



186. Cymbidium eburneo-lowianum. The same, showing sclerosed cells not as thick-walled or as numerous as in 



C. ebumeum but more numerous than in C. lowianum; endodermal cells exactly mid-intermediate 

 between the two parents in depth, 11 phloem patches and vasa in size between those of two parents. 



187. Cymbidium lowianum. Transverse section of leaf near apex, showing comparatively shallow upper epidermal 



cells, short cells of layer beneath upper epidermis. 



188. Cymbidium ebumeum. The same, showing deeper upper epidermal cells, long cells of layer beneath upper 



epidermis. 



189. Cymbidium eburneo-lowianum. The same, showing deeper epidermal cells than in either C. lowianum or C. 



ebumeum; cells of layer beneath upper epidermis longer than in either C. lowianum or C. ebumeum. 



