Masdevallia andresiana Luer & Maduro 2005 SUBGENUS Polyanthae SUBSECTION Successiviflorae Luer 2000 Photos by Woodstream Orchdis and their Orchid Website.

Common Name Andres' Masdevallia [Sr. Maduro, Panamanian Orchid Nurseryman current]

Flower Size 1" [2.5 cm] wide

Found in westernmost Panama at elevations around 1200 meters as a miniature to small sized, warm growing epiphyte with erect, stout ramicauls enveloped by 2 to 3, loose, deciduous, tubular sheaths and carrying a single, apical, erect, thickly coriaceous, obovate, acute, cuneate below into the stout, deeply channeled petiuolate base leaf that blooms in the fall on an erect, very slender, 6" [15 cm] long, successively, loosely few flowered inflorecence arising from the base of the ramiucal and has 2 to 3 distant bracts and a tubular floral bract.

The photo above has M andresiana on the left and M maduroi on the right.

Previously thought to be a variant of M maduroi now put as a species differing from the more colorful, smaller flower that has a shallower mentum and shorter tails. The petals are smaller with the tall wing reduced to a marginal callus with a retrose tooth and the anterior extension of the column foot is longer. Also the fold that divides the lip into the epichile and hypochile is marginal unlike the non-marginal folds in M maduroi.

Synonyms Alaticaulia andresiana (Luer & Maduro) Luer 2007

References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Pleurothallidinarum Vol XXVII Luer 2005 drawing fide; Icones Pleurothallidinarum Vol XXIX Luer 2007 as Alaticaulia andresiana;