52 



GRAMINACEAE 



Oryzeae 

 I^eersia oryzoides 

 Cluster and spikelet 



Phalarideae 

 Phalaris arundinacea 

 Spikelet and flower 



2. Spikelets more than one-flowered 



a. Empty glumes longer than the spikelet ; lemma awned on the back 



b. Empty glumes shorter than the spikelet, lemma awned at the tip 



(1) Herbs 



(2) Tall reeds 



Ayeneae 



A vena sativa 



Spikelet 



Aveneae 



Festuceae 

 Bambuseae 



Bambuseae 



Arundinaria japonica 



Spikelet and flower 



II. Spikelets not in panicles 

 1. Spikelets monoecious 



Festuceae 

 Bromus ciliatus 

 Spikelet and flower 



Maydeae 



