XVI 



TABLE OF COXTENTS. 



CHAPTER XVI. 

 Anomalous Thickening in Dicotyledons and Gymnosperms. 



Sect. i8o. 

 i8i. 

 182. 



183. 

 184. 

 185. 

 186. 

 187. 

 188. 

 189. 

 190. 

 191. 

 192. 



'93- 



194. 



195- 

 196. 



General Observations. Eccentric Stems and Roots 



Synopsis of the Anomalies of Thickening ..... 



Anomalous Distribution of Tissues with Normal Cambium. Senega 



root ............ 



Climbing Bignoniacese 



Phytocrene 



IMalpighiacete, Apocyne^e, Asclepiadeae, Celastrus, Tournefortia 

 Sieve-tubes in the Wood ; Strychnos, Dicella ..... 



Cambium inside the Ligneous Body: Tecoma radicans . 

 Partial Cambiums and Woody Rings of the Sapindacea; . 



in the Calycanthese and Melastomeas 

 in the Rhizome of Rheum 

 Successive renewed Zones of Thickening ...... 



ChenopodiaceK, Amarantaceae, Nyctaginece, Mesembryanthema, Tetra 



gonieee ............ 



Anomalous Dilatation of the old Parenchyma. Intercalary Zones of 



Thickening in Stems of Lianes 



„ in Roots, Convolvulaceas, &c. 

 Cycades . . '. 

 Welwitschia 





PAGE 

 567 

 567 



569 

 570 



575 

 577 

 577 

 580 

 581 

 584 



585 

 586 



590 



601 

 606 

 608 

 614 



CHAPTER XVII. 



Secondary Thickening of the Stem and Roots of Monocotyledons 



and Cryptogams. 



Sect. 197. Stem of Dracaenese, Aloineae, and Beaucarnea . 



„ 198. Tubers of Dioscoreaceae 



„ 199. Roots of DracasneJe 



,, 200. Stem of Isoetes . . 



Index 



618 

 622 



622 

 623 



625 



ERRATA. 



p. 41, 1. 7,/w- Scheidei read Schiedei. 

 P. 41, 1. S./or aculenta read zculeata. 

 In description of Fig. 15,/cr purpurasceiis read 

 purpurascens. 



r, A 1 { for .Sanseviera read Sansevieria. 

 P. 118, 1. I i ^ 



P. 89, 1. 20 



P. 94, 1. 30 



P. 95, description of Fig. 38 



P. 144, 1. 31, /or Conoccphalous read Conoce 



phalus. 



/or Patschouli read 

 Patchouli. 



P. 185, 1. 7, /or Haucornea ;ri2i/ Hancornea. 



P. 228, 1. 5,y2;r Anselia r^cz*/ Ansellia. 



P. 230, I. 32, /or Homalonema 7-ead Homalo- 



mena. 

 P. 248, 11. 38 and 4i,>rTladiantha read Thla- 



diantha. 

 P. 253, 11. 32 and 34,yi'r of read (rom the. 

 P. 477, 1. g,/or Red Fir read Spruce. 

 P. 510, 1. 16, /or Drybalanops read Dryoba- 



lanops. 



