Pleurothallis undulata Poepp. & Endl. 1836 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859 Photo by © S Manning and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Drawing Original Drawing by © Padre Pedro Ortiz Conserved at the Herbario de la Universidad Javeriana, Bogota Colombia

Common Name The Undulate Pleurothallis [refer to the margins of the dried leaf]

Flower Size .6" [1.5cm]

Found in Peru in dense forests at elevations around 600 to 1900 meters as a miniature to small sized, warm to cool growing epiphyte or terrestrial on steep embankments with slender, erect ramicauls enveloped by a close, tubular sheath below the middle and 2 others at the base and carrying a single, apical, spreading, horizontal, thickly coriaceous, cordate-ovate, acute, deeply cordate and sessile base leaf that blooms at most any time of the year on a fascile of successive, single flowered inflorescence arising through a spathe and has tubular floral bracts.

Synonyms Acronia undulata (Poepp. & Endl.) Luer 2005; Humboldtia undulata [Poepp. & Endl.] Kuntze 1891; Pleurothallis junininensis Schlechter 1921; Zosterophyllanthos undulatus [Poepp. & Endl.] Szlach. & Marg. 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854; Die Orchideen der Sudamerikanischen Kordillerenstaaten IV Peru Schlechter 1921 as P juninensis; Orchids of Peru Vol 2 Schweinfurth 1959; Flora de Venezuela Volumen 15 Parte 2 Foldats 1970; Venezuelan Orchids Illustrated Vol 4 Dunsterville & Garay 1972 not = P coriacardia; Venezuelan Orchids Illustrated Vol 6 Dunsterville & Garay 1976 as P cardiantha drawing ok; Orchids of Venezuela, An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 not = P coriacardia; Orchids of Venezuela, An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 as P cardiantha drawing ok; Icones Planetarum Tropicarum Plate 266 Dodson 1980 drawing ok; Icones Pleurothallidinarum Vol 3 Luer 1986; Orchids of Venezuela [An illustrated field guide] Vol. 3 Ramiro and Carnevali 2000 drawing ok; Icones Pleurothallidinarum Vol 27 Luer 2005 drawing ok as Acronia undulata;

--------------------------------------------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------------------------------------