New records and geographic distribution of Glaziophyton mirabile (Poaceae: Bambusoideae)

Abstract

Glaziophyton Franch. is a monotypic bamboo genus (G. mirabile Franch.), narrowly endemic to the Campos de Altitude in the state of Rio de Janeiro, southeast Brazil. Five occurrence sites are known, but one is considered locally extinct and, at two sites, the species has not been recollected for several years. Due to its restricted geographical range G. mirabile is classified as a threatened species. In this study we report two new populations. These new records might change the species conservation status and the category of its extinction risk.