Kelley — xiv — Mycotrophy 



RHIZA REPLACES ROOT-HAIRS — MyCOPHAGY — RoMELLIAN HY- 

 POTHESIS — Nitrogen theory — Chemical studies of the 



NITROGEN theory IMPORTANCE OF P StAHLIAN HYPOTHESIS 



— Hatchian hypothesis — Transpiration and mycotrophy 



— Objections to the Stahlian hypothesis — Bjorkman's 

 hypothesis — Carbonaceous theories — Hydrocarbon hypo- 

 thesis — Carbohydrate hypothesis — Growth-promoting 

 substances — Limitation of mycotrophic hypotheses — 

 The intaking mechanism — Ectotrophic intake — Root- 

 hairs versus setae — Endotrophic intake — Hyphae as 

 nutrient conveyors — Teleology in mycotrophism . 148 



Lecture XII 

 Mycotrophic Phagocytosis :• Significance of the term — Older 

 descriptions of phagocytosis — Phagocytosis in peloton 

 mycorrhizae — Phagocytosis in arbuscular- vesicular 

 mycorrhizae — Phagocytosis in ericaceous mycorrhizae — 

 Phagocytosis in ectotrophic mycorrhizae — Limitation of 

 endophyte — Limitation in orchids and other herbs ■ — ■ 

 Limitation in hepatics — Limitation in root apices — 

 Limitation in long roots — Limitation in green tissues — 

 Summary of limitation — The starch relation — Con- 

 clusion 164 



Bibliography 183 



Subject Index 216 



Index of Plant Names 219 



