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189 



184. Cyiiibiiliuni loicianuiti. 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 eburneum. 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. eburneum 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 eburneum. The same, showing deeper upper epidermal cells, long cells of layer beneath upper 



epidermis. 



