Taxonomie : A la description de
Platystele catiensis, Karremans & Bogarín (
in Fernández
et al., Lankesteriana, 13(3):
[259-]268[-282]. 2014) discutent les limites de
P. oxyglossa
(Schltr.) Garay 1974 et émettent l'hypothèse que cette espèce, conçue
dans un sens très large par Luer (1990), pourrait être découpée dans le
futur et acceptée dans un sens beaucoup plus restreint (seulement nord
de l'Amérique centrale?). Plus spécifiquement pour le Brésil, ils
indiquent: "A few Brazilian species have been placed under synonymy of
P. oxyglossa,
but from what we have seen they are most likely not the same species,
and certainly are not the same as those found in Costa Rica. The
recently described
Platystele paraensis Campacci & da Silva has the typical general flower morphology of the
P. oxyglossa complex, and is as tiny as
P. catiensis.
It can be distinguished by the single flowered inflorescence, the
sepals that are long caudate, that have an orange mid-vein and are much
longer than the lip, which is apically yellow-orange."