Masdevallia ariasii Luer 1985 SUBGENUS Masdevallia SECTION Masdevallia SUBSECTION Oscillantes Luer 1986

Photo by Gary Meyers

TYPE Drawing

TYPE Drawing by Carl Luer

Common Name Arias' Masdevallia [Peruvian Orchid Enthusiast and Discoverer of Species - Current]

Flower Size 3/4" [2 cm]

Found in southern Ecuador and north central Peru at elevations around 900 to 1000 meters as a miniature sized, warm growing epiphyte with erect, slender, blackish ramicauls enveloped basally by 2 to 3 short, tubular sheaths and carrying a single, apical, erect, coriaceous, oblong, round to obtuse, basally cuneate into the petilate base leaf that blooms in the summer on a suberect, slender, 3/4 to 1 1/4" [2 to 3 cm] long, single flowered inflorescence arising from low on the ramicaul with a bract near the base and a thin, tubular floral bract.

"Closely allied to M wagneriana of coastal Venezuela but it is distinguished by the broader dorsal sepal creating a sub-orbicular flower and the lip which lacks lateral wings. Instead of the attachment to the column foot being loosely swiveled, the lip is more of or less immobile with the slender extemsion of the column foot is short." Luer 1985

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; * Phytologia 57: 60 Luer 1985; Madevallia's in Kleur Vol 1 P M Oversteegen, Eisses & A P Sijm 2001 photo fide; Icones Pleurothallidinarum XXIII Systematics of Masdevallia Part 4 Luer 2002 drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 drawing fide; Orchidaceae Masdevallia and Affiliates Dodson & Luer 2009 drawing fide; Masdevallia in Detail Vol 5 Sijm etal 2010 photo/drawing fide; Las Orquideas del Peru Izerskyy & Bezverhov 2011 photo fide; Orchids Masdevallia with its segregates including Dracula Zelenko 2014 photo fide;

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