Pleurothallis tonduzii Schltr. 1918 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

Photo by Pieter C. Brouwer

Higher elevation variety 2000 meters

Photos by Daniel Jimenez

Drawing

Drawing by Carl Luer

to

Common Name or Meaning Tonduz's Pleurothallis [Central American Orchid Collector]

Flower Size .8" [2 cm]

Found in Alajuela province of Costa Rica, Chiriqui province of Panama and Peru? in cloud forests at elevations of 700 to 2000 meters as a miniature sized, warm to cool growing, caespitose epiphyte or terrestrial with thick ramicauls enveloped basally by 2 to 3 tubular sheaths carrying a single, apical, coriaceous, lanceolate, subfalcate, cordate, attenuate to the 3 dentate apex leaf that blooms at any time of the year on a short, arising through and and mostly concealed within the triangular spathe, a fascile of successively single, few flowered inflorescence with thin, tubular, shorter than the pedicel floral bract.

"Characterized by the long, narrow, erect leaves and a flower with a prominent, dark purple, verrucose lip held erect in the center. The sides of the lip are revolute to create the pandurate shape and the apex is similarily acutely revolute." Luer 2005

Synonyms Acronia tonduzii (Schltr.) Luer 2005; Zosterophyllanthos tonduzii (Schltr.) Szlach. & Kulak 2006

References W3 Tropicos, Kew Monocot list , IPNI ;

* Beih. Bot. Centralbl., Abt. 2 36(2): 397. Schltr. 1918;

Repert. Sp. Nov. Regni. Veg. Beih. 19: 195. Costa Rica Schlechter 1923;

Selbyana 3: 190 Luer 1976 drawing fide;

Icones Planetarum Tropicarum plate 1483 Atwood 1992 drawing fide;

Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003;

Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia tonduzii;

Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia tonduzii drawing fide;

AOS Bulletin Vol 75 No 1 2006 photo fide;

Orchids of Costa Rica Vol 2 Morales 2009 photo fide;

Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo fide;

Harvard Papers in Botany Vol. 26, No. 1 2021, The Researchgate Website photo/drawing fide;

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