Pleurothallis tonduzii
Pleurothallis tonduzii Schltr., Beih. Bot. Centralbl., Abt. 2. 36(3): 397. 1918.
Type: Costa Rica. [Alajuela:] Forêts de San Ramón 1500–1600 m, May 1913, A. Tonduz s.n. (holotype, B, destroyed; neotype, designated by Pupulin et al., 2016: 310: tracings of the original drawing of the holotype, made under Schlechter’s supervision, AMES-23680; illustration of the flower from the holotype published by Mansfeld, 1931: no. 144).
Illustrated specimen: Costa Rica. Alajuela: Bajos del Toro, Cataratas, without collector. December 1999, flowered in cultiva- tion at Jardín Botánico Lankester, 11 Jun 2019. JBL-02455 (JBL; LCDP voucher).
Eponymy: Named after the Swiss botanist Adolphe Tonduz, who discovered the species.
Pleurothallis tonduzii can be distinguished by the combination of long, narrow, erect leaves, apically arched, the dark fuchsia, pandurate, verrucose lip, almost porrect, abruptly recurved on the apical third, and the sides revolute on the distal half. It is similar to Pleurothallis telamon Luer (a species described from Panama), which has horizontal to pendulous leaves and and an oblong, flat lip.