Models for mesophyll cell arrangement in leaves of ryegrass (Lolium perenne L.).

Three models for mesophyll cell arrangement in leaves of Lolium perenne L. are described. It is shown that mesophyll cells may be represented as spheres packed in a tetragonal lattice. The need to quantify mesophyll cell arrangement is discussed in relation to leaf photosynthesis.The variation on measurements of some anatomical features of leaves is examined and discussed.