V 



- 1 



v '; < * 



.<-.v'. Syp^o^ 



..p4?^;; /;, 



(P^y^' : ''''V ' %--.^ 



^ 



^^^;'-j^^^;^.^,- 



178 



181 



179 



182 



WjP-WH W\ 



^v.'\ I 



. --,-" - - ' :- \ ','-. 

 ^^ " <= '^ 



' 



180 



178. Lcciia purpurata. Transverse section of pseuclobulb at middle, showing deep epidermis, deep cuticle, elongated 



thick-walled cells of two layers beneath epidermis. 



179. Cattleya i<>.ixi<r. The same, showing shallower epidermal cells, cuticle as deep as in L. purpurata, cells of two 



lavrrs beneath the epidermis not elongated and only those of first layer have thickened walls. 



180. Lcelia-Cattleya cnnhnmiana. The same, showing epidermal cells, deeper than those in C. mossia- but not quite 



as deep as those in L. purjntnitn: cuticle, deeper than in either C. mossi<F or L. purpurata; and two 

 layers beneath the epidermis not as elongated nor as thick-walled as in L. purpurata, but distinctly 

 more elongated and thicker walled than in C. mossice. 



181. Lrrlia pur/turnta. Transverse section of leaf near apex, showing slightly elongated cells of first layer of aqueous 



tissue at midrib, and large bundle. 



182. Cattlei/a mnxitiir. The same, showing more elongated cells of aqueous tissue and rather small bundle. 



183. Lirlin-l 'ullli'i/n cniihamiana. The same, showing cells of aqueous tissue of same length as in (' . mnxsiir and smaller 



