TABLE OF CONTENTS. 



beet. 



J) 



18. Restio diftusus . . . . 



19. Dermal Glands .... 



20. Pulverulent Hairs ... 



21. Digestive Glands . ... 



22. Silicification, Calcification, Cystoliths 



23. Deposits of Lime . . . . 



Division II. 



24. Origin and Structure of Cork 



Cork. 



PAGE 

 88 



88 



99 

 100 

 102 

 106 



108 



Division III. Parenchyma. 



25. Forms with Thin Walls 



26. Collenchyma, Sclerotic Cells 



27. Endodermis (protective sheath) 



115 

 119 

 121 



CHAPTER 11. 

 Sclerenchyma. 



Sect. 28. General Observations .... 

 „ 29. Short Sclerenchyma, Stone Sclerenchyma 

 „ 30. Sclerenchymatous Fibres . 



126 

 127 

 128 



CHAPTER III. 

 Secretory Reservoirs. 



Sect. 31. Synopsis 



„ 32. Sacs containing Crystals 



33. Sacs containing Mucilage . 



34. Sacs containing Resin and Gum-resin 



35. Sacs containing Tannin 



135 

 137 

 143 

 145 

 153 



CHAPTER IV. 



Trachese. 



Sect. 36. Synopsis 



„ 57. Fibrous Thickening of the Walls 



„ 38. Bordered Pits .... 



„ 39. Transverse Bars .... 



„ 40. Tracheides 



„ 41. Vessels 



„ 42. Contents of the Tracheae, Thyloses 



'53 

 156 



158 



163 



164 

 165 

 169 



CHAPTER \' 



Sieve-tubes. 



.Sect. 43. Angiosperms 



„ 44. Gymnosperms and Ferns 



172 

 179 



