Alloteropsis semialata (R.Br.) Hitchc.of the Paniceae, would be expected to exhibit typical eupanicoid leaf anatomy with a single bundle sheath of large parenchymatous cells with specialized chloroplasts and radially-arranged chlorenchyma.
Specimens from South Nail Polish Africa showed the following bundle-sheath and mesophyll deviations from the generalized panicoid model: 1.bundle sheath is double; 2.inner bundle sheath is composed Handballs of large cells with specialized chloroplasts; 3.outer sheath consists of many smaller cells with few, or without chloroplasts; 4.
outline of the third- order bundles is tall and narrow; 5.chlorenchyma is not radially arranged.Other specimens of A.semialata, however, were found to have a large-celled outer bundle sheath devoid of chloroplasts and with indistinctly radiate chlorenchyma.