Common Name: The Three Toothed Pleurothallis
Light Requirements: deep shade
Temperature Requirements: hot to cool
Bloom: spring, summer and autumn
Flower Size: 3mm
Synonyms: Acronia tridentata (Klotzsch) Luer 2005; Humboldtia tridentata (Klotzsch) Kuntze 1891; Pleurothallis ionantha Rchb.f. 1850; Pleurothallis nephrocardia Schltr. 1919; Zosterophyllanthos ionanthus (Rchb.f.) Szlach. & Marg. 2001; Zosterophyllanthos nephrocardius (Schltr.) Szlach. & Marg. 2001; Zosterophyllanthos tridentatus (Klotzsch) Szlach. & Marg. 2001
Found in Venezuela, Colombia, Ecuador, Peru and Bolivia at elevations of 400 to 2000 meters as a mini-miniature to small sized, hot to cool growing epiphyte with slender, erect to ascending ramicauls enveloped by a close, tubular sheath below the middle and another at the base and carrying a fascile of single, apical, suberect to spreading, coriaceous, narrowly ovate, acute, rounded, shallowly cordate, sessile leaf that blooms in the spring, summer and autumn on a short 1mm to 2mm long, successively single flowered inflorescence subtended by a spathe and carrying a non-resupinate flower.