VI. 



Figure ESi 

 (p. 86) 



Figure S3, 

 (p. 88) 



Figure 24, 

 (p. 92) 



Figure 25. 

 (p. 94) 



Figure E6. 

 (p. 95) 



Figure 27 . 

 (p. 96) 



Figure 38. 

 ( 



Figure 29. 

 (p. 99) 



Figu.re 30. 

 (p. 99) 



Figure 31. 

 (p. 100) 



Figure 38, 

 (p. 100) 



Figure S3. 

 (p. 106) 



Figure 34, 

 (p. 106) 



Hibisous vitifolius . Intumescence of the 

 leaf. The cells of the tipper epidermis 

 have been greatly enlarged, s. s. stomato. 

 (After I>ale) , 



Conooaiphalus ovatus « 

 Haberlandt) • 



Intumescence,, (After 



Padina Pavotiia . Callus hypertrophies on 

 pieces of thallus. (Original) 



Oattleya, Cross-section throuc:h the edge 

 of 'TOund on leaf. The exposed, have 

 gro\7n out into large pouches, (Original) 



Oattleya. Single cell of the wound ^own in 

 ^e preceding figure, more highly magni- 

 fied. The oell-\7all is thickened in meshes* 

 (Original) . 



Tradescantia vir^inica . Callus-hypertrophy 

 oif the epidermal cells . (After Miehe) , 



Cross-section through a stalk, which lateral 

 pressure has split longitudinally in four 

 places, (f f f f«) (Diagram, after MaSsart) 



C anna indi c a . 

 sectiQn. 



Annular duct in longitudinal 

 The wood parenchyma cell at the 



left is forming two tyloses, (After Mollsch) 



M usa Bnset e. 

 section! 



Spiral duct in longitudinal 

 The wood parenchyma cells at the 



left have grown out to one or more tyloses 

 of unequal size, (After Molisch) . 



Robinia Pseuda^acae ia, Pitted duct in cross- 

 section. Numerous parenchyma cells have 

 grown out to tyloses. In a -a may be seen 

 the connection of the tyloFes^with their 

 mother cells, (After Strasburger ."Lehrbuch") 



Mespilodaphne Sassafras. Cross-section 



through Old wood. The undermost duct con- 

 tains only one stone- tylosis, the upper 

 ones contain, besides stone- tyloses, also 

 relatively thin-walled ones. (After Molisch 



Trades cant ia y&ridis . Obstructed stomata of 

 a foliage leaf. The epidermal cells nest 

 the guard cells have formed vesicular 

 outgrowths on- the under side. (After Haber- 

 landt) . 



Pilea elegans. Obstructed stomatum of the 

 upperside of the leaf. The mesophyll cells 

 have grown into the ijpaer cavity^ (After 

 Haberlandt.) 



