Firstly described Gymnosiphon trinitatis by Johow (1889), who recognized his misidentification of a specimen he called Burmannia capitata in an earlier work (Johow 1885). Urban (1903) noticed the considerable differences bewteen this species and other Burmanniaceae (inner tepals lacking, stalked glands on top of the ovary), and coined the new genus Marthella. It only occurs on Mount Tucuche in Trinidad and has not been recollected since 1898.
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