Key to the genera of Cleistochloinae

Three species with phrase names: D. sp. (Charters Towers E. J. Thompson + CHA 554), D. (Miles E. J. Thompson EJT 906), D. (Mt Cooper R. J. Cumming 18623).

1. Spikelets from the two types of inflorescences similar....................2 Spikelets from the two types of inflorescences strongly dimorphic...............................................................................................3

2. Plants stoloniferous; cleistogamous (CL) spikelets in usually 4- flowered axillary racemes ........................................... Simonachne Plants rhizomatous with wiry erect tufted culms; CL spikelets usually solitary, apical on leafy subordinate branches............................... .......................................................................... Dimorphochloa s.s.

3. Upper lemmas awned; CL spikelets adaxial.....................................4 Upper lemmas mucronate; CL spikelets abaxial........ Cleistochloa s.s.

4. Plants stoloniferous; upper lemma much shorter than lower lemma… Calyptochloa, Cleistochloa sp ........................................... ..........................................................(Duaringa K. B. Addison 42) Plants not stoloniferous, bushy with some decumbent branching; upper lemma subequal to lower lemma.......... Dimorphochloa spp.