Masdevallia monogona Königer 1985 SUBGENUS Polyantha SECTION Alaticaules SUBSECTION Alaticaules [Krzl.] Luer 1986

Photo courtesy of Ron Parsons ©


Drawing by Carl Luer


Common Name The One-Angled Masdevallia

Flower Size .8" [2 cm]

Found in Amazonas department of Peru at elevations around 2000 meters in Amazonas state as a small sized, caespitose, cool to cold growing terrestrial with stout, erect ramicauls enveloped by 2 to 3 loose, tubular sheaths carrying a single, apical, erect, thickly coriaceous, narrowly elliptic-obovate, subacute leaf that is gradually narrowed below to the base that blooms in the late summer and early fall on an erect, arising from low on the ramicaul with a bract below the middle, congested, successively few flowered, 1.8" to 2.4" [4.5 to 6.5 cm] long inflorescence with thin, imbricating, acuminate, shorter than the vary floral bracts with the flowers held at mid-leaf height.

"Difficult to place in a section because the peduncle is neither triquetrous or terete, instead the short peduncle is round below the middle, becoming sharply longitudinally one-angled above the middle on the abaxial surface opposite the lip, aligning it better with the subsection Alaticaules. The tails of the sepals are slightly thickened towards the apex. The petals and lip are basically similar to those of other members of the subsection." Luer 2000

Synonyms Alaticaulia monogona (Königer) Luer 2006

References W3 Tropicos, Kew Monocot list , IPNI ; Systematics of Masdevallia Vol 2 Luer 1986; Icones Orchidacearum Peruviarum Plate 288 Bennett & Christenson 1995; Orchid Australia Vol 12 No 2 2000 photo; Icones Pleurothallidinarum XIX Systematics of Masdevallia Part 1 Luer 2000 Drawing fide; Masdevallia's in Kleur Vol 1 P M Oversteegen, Eisses & A P Sijm 2001 photo fide; Icones Pleurothallidinarum XXV Systematics of Masdevallia Part Five Luer 2003; Icones Pleurothallidinarum Vol XXVIII Luer 2006 as Alaticaulia monogona; Masdevallia in Detail Vol 5 Sijm etal 2010 photo/drawing fide; Orchids Masdevallia with its segregates including Dracula Zelenko 2014 photo fide;