Pleurothallis macra Lindl. 1859 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

Photo by Eric Hunt

MOSTLY

Common Name The Large Pleurothallis

Flower Size 1/2" [1.25 cm]

Found in Ecuador and Peru at elevations of 1000 to 3400 meters as a miniature to small sized, warm to cold growing, epiphyte or terrestrial on steep slopes in very wet montane cloud forest with a short rhizome giving rise to an elongate ramicaul enveloped basally by a tubular sheath and another below the middle and carrying a single, apical, narrow, lanceolate, erect leaf that is gradually conduplicate below and blooms mostly in the spring on a fasciculate, short, pendant, successively few flowered inflorescence arising from a spathe at the base of the leaf.

This species is characterized by having the flowers hang from slender pedicels beyond the shallowly cordate base, the dorsal sepal is large and suborbicular and is much wider than the synsepal, the petals are narrowly falcate and the lip is ovate and obtuse.

Synonyms Acronia macra [Lindl.] Luer 2005; Humboldtia filifera (Lindl.) Kuntze 1891; Humboldtia macra ( Lindl. ) Kuntze 1891; Pleurothallis filifera Lindl. 1859; Zosterophyllanthos macer ( Lindl. ) Szlach. & Margonska 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Planetarum Tropicarum plate 243 Dodson 1980 drawing fide; Icones Pleurothallidinarum Systematics of Pleurothallis Vol 3 Luer 1986; Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 drawing fide as Acronia macra; Orchid Species of Peru Zelenko & Bermudez 2009 photo fide

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