Pleurothallis malachantha Rchb.f 1855 SUBGENUS Arthrosia Luer 1986

Photo by Roberto Martins and hisFlickr Orchid Photo Website


Photo by Luiz Menini Neto and The Subtribe Pleurothallidinae [Orchidaceae] from the Parque Estadaual de Ibitipoca, Minas Gerais Brazil


Drawing by Pabst


Drawing by Helmut Seehawer


Common Name The Delicate Flowered Pleurothallis

Flower Size .12" [3 mm]

Found in Parana' and Rio de Janiero states of Brazil in primary forests at elevations around 1300 meters as a miniature to small sized, warm to cool growing, caespitose epiphyte occuring near the base of the trees with slender erect ramicauls enveloped by 3 short lived, brown spotted sheaths and carrying a single, apical, erect, coriaceous lanceolate, narrow, stiff leaf that blooms in the early summer on a few, arising through a wine red splashed spathe, erect, to 3.2" [8 cm] long, 4 to 7 flowered inflorescence.

Synonyms Acianthera malachantha (Rchb.f.) Pridgeon & M.W.Chase 2001; Arthrosia malachantha (Rchb.f.) Luer 2006; Humboldtia malachantha (Rchb.f.) Kuntze 1891; Specklinia malachantha (Rchb.f.) Luer 2004

References W3 Tropicos, Kew Monocot list , IPNI ;

* Bonplandia (Hannover) 3: 223 Rchb.f 1855;

Revis. Gen. Pl. 2: 667 Kuntze 1891 as Humboltia malachantha;

Flora Brasiliensis Vol III Part 4:412 Martius, Cogniaux 1896

Flora Brasiliensis Vol III Part 4:tab 90 Martius, Cogniaux 1896

Orchidaceae Brasilensis Band 1 Pabst & Dungs 1975 drawing ok;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;

Lindleyana Vol 16 No 4:244 Pridgeon & M.W.Chase 2001 as Acianthera malachantha;

Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 as Specklinia malachantha;

Icones Pleurothallidinarum Vol XXVIII A Reconsideration of Masdevallia Systematics of Specklinia Luer 2006 as Arthrosia malachantha;

The Organ Mountain Range Its History and Its Orchids Miller, Warren, Miller and Seehawer 2008 drawing fide