X TABLE OF CONTENTS 



PART II 

 SYSTEMATIC AGROSTOLOGY 



CHAPTER XI 



Pages 



Morphology of the Vegetative Organs 95-111 



Distinguishing characters of grasses, 95 — Gross anatomy, 

 96 — Perennial herbaceous species, 96 — Distribution, 97 — 

 The root, 98— The stem, 98— Duration, 99— Stems modi- 

 fied for propagation, 100 — Stolons, 101 — Corms, 102 — 

 Artificial propagation by means of stems, 102 — The leaf, 

 103 — Leaf-base and blades, 104 — The prophyllum, 104 — 

 The sheath, 104— Sheath-nodes, 105— The collar, 105— 

 The hgule, 105— The blade, 106— Nervation, 107— 

 Auricles, 108— Roll leaves, 108— Scales, 109— Bracts, 

 110. 



CHAPTER XII 



Morphology of the Floral Organs 112-132 



The inflorescence, 112 — Kinds of inflorescence, 113 — 

 Unisexual inflorescence, 114 — Monoecious genera, 115 — 

 The axis of inflorescence, 115 — Branching of panicles, 

 116 — Motor organs, 117 — The spikelet, 117 — Sterile 

 spikelets, 120— The pedicel, 120— The glumes, 121— 

 Anomalous glumes, 123 — The lemma, 124 — Sterile flo- 

 rets and sterile lemmas, 125 — Awns, 126 — Twisted awns, 

 127— The palea, 127— The lodicules, 128— The stamens, 

 128— The pistil, 129— The fruit, 129— The seed, 130— 

 The embryo, 131 — The endosperm, 131 — The rachilla, 

 131. 



CHAPTER XIII 



Ecology 133-150 



Seed dispersal, 133 — Dispersal by wind, 133 — Dispersal 

 by animals, 135 — Germination, 136 — Germination of 



