Genus of grasses
Chasechloa is a grass genus in the tribe Paniceae (subtribe Boivinellinae), endemic to Madagascar. It was described by French botanist Aimée Antoinette Camus in 1948, who named it in honour of Mary Agnes Chase. Its two species were also classified in the genera "Echinolaena" and "Panicum", but phylogenetic analysis confirmed that they form a distinct lineage.
Species of the genus are erect grasses, tall. They have ovate to linear leaves. The inflorescence is a terminal, one-sided raceme, sometimes in clusters of up to five. The glumes have prominent stiff hairs. The spikelets are paired and have no awns. The genus can be distinguished from similar forest grass species in "Acroceras", "Brachiaria", "Urochloa" and "Poecilostachys" by its denser and thicker racemes.
The upper florets have oily appendages, elaiosomes, which suggest seed dispersal by ants (myrmecochory), although this has not directly been observed.
"Chasechloa" species are found in savanna, rocky outcrops or dry forest. They are restricted to the north-west of Madagascar.
The two species are:
References.
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