Plate V. 



Fif'. 59. Transverse section of a fibro-vascular bundle in the fruit-tissue of 

 Luffa cylindrica. sc, well-developed sclerenchymatous sheath ; /, 

 enclosed rudimentary bundle ; j9, parenchymatous cell. Zeiss, 4 x B. 



Fig. 60. Transverse section through the pericarp of Cucumis sativus. e, 

 prismatic epidermal cell ; st, stoma ; sb, extra-phloem sieve-tube ; 

 p, parenchymatous cell. Zeiss, 4 x B. 



Fi'T. 61. Transverse section through the pericarp of Benincasa cerifera. id, 

 wax ; e, epidermal cell having a tangential septum ; h, trichome ; 

 at, stoma ; sb, extra-phloem sieve-tube ; sc, sclerenchymatous ring ; 

 p, parenchyma ; /, fibro-vascular bundle ; h, crystal. Zeiss, 4 x B. 



Fi(f. 62. Transverse section through the testa of I/uffa acutangula. 1, 

 first layer : prismatic epidermal cells with thickened-ridges ; 2, 

 second layer : small thick-walled })itted cells ; 3, third layer : one 

 row of characteristic large [irismatic stone-cells ; 4, fourth layer : 

 thin-walled stellate pitted cells ; 5, fifth layer : thin-walled com- 

 pressed cells ; 6, sixth layer : the remnant of the nucellus ; 7, 

 seventh layer : the remnant of the endosperm, r, thickening-ridge. 

 Zeiss, 2xD. 



FifT 63. Transverse section through the testa of Acthiosteiivuia racemosuvi. 



1, first layer : llattened epidermal cells ; 2, second layer : thick- 

 walled reticulate and pitted cells ; 3, third layer : several-layered 

 stone-cells ; 4, fourth layer : remarkably large reticulate cells ; 5, 



6, and 7, fifth, sixth, and seventh layers, like those in fig. 62. 

 Fi(T. 64. Transverse section through the testa of Melotliria japonica. 1, 



first layer : prismatic epidermal cells with pointed, thickened-ridges ; 



2, second layer: thick-walled pitted cells; 3, third layer: stone- 

 cells ; 4, fourth layer : slightly pitted thin- walled cells ; 5, 6, and 



7, fifth, sixth, and seventh layers, like those in fig. 63. r, 

 thickened-ridge. Zeiss, 2 x D. 



Fio-. 65. Tangential section through the epidermis of the testa of 3Ielothria 

 japonica. e, epidermal cell ; r, thickened-ridges. Zeiss, 2 x D. 



Fi"'. ^^. Transverse section through the testa of Schizopepon bryonice/oUus, 

 var. japonicus. 1, first layer : cubical epidermal cells with the 

 thickened lateral walls ; 2, second layer : thick-walled pitted cells ; 



3, third layer : large stone-cells ; 4, fourth layer : stellate thin- 

 walled pitted cells; 5, 6, and 7, fifth, sixth, and seventh layers, 

 like those in fig. 64. Zeiss, 2 x D. 



