Grass Morphology II
Spikelet Spikelet of Arundinella pumila (Hochst. ex A. Rich.) Steud. Spikelet is a basic unit in inflorescence, it comprises Glumes, Lemmas, Paleas and florets. Spikelet shows great variation in structure and arrangement, based on this, they are placed in different tribes. Most of the grasses have only one type of spikelet, but some shows exceptions; some are paired or solitary. Genera like Digitaria, Phacelurus, Saccharum etc. have only one type of spikelets, they are paired. Some of the genera like Sehima, Dichanthium and Heteropogon have paired and dissimilar spikelets . Grasses like Iseilema, Themeda, have three types of spikelets, involucral spikelet (Male), Sessile (bisexual) and Pedicelled (Male). In Pennisetum and Setaria, the spikelets are subtended by involucral bristles. In Zea, Coix and Chionachne, male and female spikelets are arranged in same or in different inflorescence. Spikelets o...
