Masdevallia xanthina Rchb.f 1880 SUBGENUS Masdevallia SECTION Masdevallia SUBSECTION Caudatae Veitch 1889

Photo by Jay Pfahl

M xanthina ssp mandarina

Photos by Lourens Grobler

White color form Photo by Mike Grauer

Masdevallia xanthina subsp. pallida

Photo by Jean Claude George

to

Common Name The Yellow Masdevallia

Flower Size 7" [to 17 cm]

Found in Antioquia and Caldas departments of Colombia, Ecuador and Peru in damp woods on both sides of the Andes in cloud forests at elevations of 1500 to 2800 meters as a mini-miniature sized, cool to cold growing epiphyte with blackish, erect, slender ramicauls enveloped basally by 2 to 3 loose, tubular sheaths carrying a single, apical, oblong-ovate, suberect, shortly petiolate, tridenticulate apically leaf that is cuneate below into the slender petiole and blooms in the winter on an erect, slender, terete, 3" [8 cm] long, single flowered inflorescence arising from low on the ramicaul with a bract below the middle and a tubular floral bract that holds the flower above the leaves.

Constant moisture, moderate shade and cold to cool temperatures are appreciated by this marvelous species.

Synonyms Masdevallia estradae var. xanthina (Rchb.f.) A.H.Kent 1889; Masdevallia pallida (Woolward) Luer 1978; Masdevallia xanthina var. pallida Woolward 1896; Masdevallia xanthina subsp. pallida (Woolward) Luer 1988

References W3 Tropicos, Kew Monocot list , IPNI ; Die Orchideen Schlechter 1915; Beitrage Zur Orchideenkunde Von Colombia 27:25 Schlechter 1924; Orquideologia Vol 16 No 1 1983 as M aops drawing fide; Systematics of Masdevallia Vol 2 Luer 1986; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992; Orchid Digest Vol 58 No 4 1994 photo not = M ccoccinea var xanthina; Native Colombian Orchids Vol 6 COS 1998 photo fide; Native Colombian Orchids Vol 6 COS 1998 as Xanthina ssp klabochiourum photo fide; Native Colombian Orchids Vol 6 COS 1998 as M xanthina ssp mandarina photo fide; Masdevallia's in Kleur Vol 1 P M Oversteegen, Eisses & A P Sijm 2001 photo fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 as M aops drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 photo fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 as M xanthina subsp pallida photo fide; Icones Pleurothallidinarum XXIII Systematics of Masdevallia Part 4 Luer 2002 drawing fide; Libro Rojo de Plantas De Colombia Vol 6 Primera Parte Saenz 2007 photo good; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; Orchidaceae Masdevallia and Affiliates Dodson & Luer 2009 drawing fide; Mille et Une Mini Orchideees Roguenant 2009 photo fide; Orchids Masdevallia with its segregates including Dracula Zelenko 2014 photo fide; Orchid Digest Vol 80 #1 2016 photo fide;

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