In Anomochloa there are several nearly equal ribs and in some broad-leaved grasses (Bambuseae, Pharus, Leptaspis) the venation becomes tesselated by transverse connecting veins.
7) and in two anomalous genera,, Anomochloa and Streptochaeta.
They however occur in a whole section of Andropogon, in Anomochloa, and at the base of the spike in Sesleria.
13, 3); and Anomochloa and Tetrarrhena possess four.
Many remarkable endemic genera occur in tropical America, including Anomochloa of Brazil, and most of the large aquatic species with separated sexes are found in this region.