Pleurothallis fabiobarrosii Borba & Semir 2000 SUBGENUS Acianthera SECTION Brachystachyae Lindley 1859

Photo courtesy of Dalton Holland Baptista

Drawing

TYPE Drawing by Angela Pacheco

Fragrant Full shade Warm EARLYSummer

Common Name or Meaning Fabio Barros' Pleurothallis [Brazilian taxomonist and orchidologist and discoverer of species]

Flower Size .12" [3 mm]

Found in Minas Gerais state of Brazil directly on quartzite rocks at elevations of 600 to 1000 meters as a mini-miniature to small sized, warm growing, caespitose lithophyte with erect, round in crosssection, slightly sulcate4, purple ramicauls carrying a single, ap[ical, erect, fleshy oblong, acute, conduplicate, in youth light purple becoming dark purple in maturity, attenuate and conduplicate into the sessile base leaf that blooms in the early summer on an erect, arising through an ovate, acute, hyaline with purple spots becoming paleaceous spathe, peduncle 1.4 to 3.4" [3.5 to 8.5 cm] long, shorter than the leaf, purplish, 3 to 7 flowered inflorescence with obovate, acute, purplish red floral bracts.

Similar to P ochreata and occuring with but easily recognized by the straight inflorescencce, P ochreata has a bent inflorescence. The purple leaves and ramicaul vs green in P ochreata, a fishy smell while P ochreata has a smell like rotten cheese and produces nectar at the base of the lip. Neither of the other 2 specis has nectar. P johannensis is also similar but there are important differences in the lip structure. P johannensis has a larger callus and lateral lobes and is unguiculate as well as the flowers smell of fish. P fabiobarrosii has condupliate leaves that are as long as the ramicaul, P johannensis has terete leaves which are much longer than the short ramicaul.

Synonyms Acianthera fabiobarrosii (Borba & Semir) F.Barros & F.Pinheiro 2002

References W3 Tropicos, Kew Monocot list , IPNI ;

* Lindleyana 15: 3 Borba & Semir 2000 drawing/photo fide;

Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera fabiobarrosii photo fide

--------------------------------------------------------------------------------------------------------------------------