Pleurothallis saueri (Luer) J.M.S. Shaw (2016: 39)

Jiménez, Marco M., Vélez-Abarca, Leisberth, Mashendo-Jimbicti, Viviana, Garzón-Suárez, Henry X., Monteros, Marco F. & Wilson, Mark, 2023, Five new species of Pleurothallis (Orchidaceae: Pleurothallidinae) in subsection Macrophyllae-Fasciculatae from Southeastern Ecuador, Phytotaxa 607 (3), pp. 161-181 : 178

Taxonomic notes on Pleurothallis saueri (Luer) J.M.S. Shaw

Pleurothallis saueri was originally described as Lindleyalis saueri Luer in Luer & Thoerle (2012: 355) from a wild specimen from Ecuador but without a known locality, which was imported by Tropical Orchid Farm and grown by E. Sauer in the United States ( Luer & Thoerle (2012). It is now confirmed that this species grows in Zamora Chinchipe Province, southeast Ecuador, in the same location of P. lapoi ( Figure 3 ). A specimen of P. saueri was found, photographed, and collected without flowers in the confirmed locality in November 2020, it was grown at the Orquideario La Paphinia, where it bloomed 18 months later ( Figure 14 ).

6. Pleurothallis saueri (Luer) J.M.S. Shaw (2016: 39) .

Basionym: Lindleyalis saueri Luer (2012: 355) .

Type: — ECUADOR. Without collection data, obtained from Tropical Orchid Farm in Hawaii , flowered in cultivation in Centerville, OH, December 2011, E. Sauer s.n. (holotype: MO, not found, lectotype here designated), C. Luer illustr. 21701, in Harvard Papers in Botany 17: 333–368. 2012. ( Fig. 13 ). Epitype (designated here):— ECUADOR. Zamora Chinchipe: cerca de El Pangui , 1560 m, 17 January 2022, L. Vélez-Abarca, LV 0073 ( ECUAMZ!) ( Figure 14 ) .

While searching for the original material of the species, the type material was sought at Missouri Botanical Garden ( MO) to verify if the specimen is deposited there. It was known that the holotype of Pleurothallis saueri is not found at the herbarium, therefore, based on the original illustration a lectotype is selected here.

Figures

FIGURE 3. Distribution map of Pleurothallis kashi-menkakarai (black circle), P. lapoi (black square), P. marioandresavilae (black star), P. sabanillae (black cross), P. saueri (also black square), P. tinajillensis (black diamond) in Ecuador and mining threats (red squares). Map by Henry X. Garzón.

FIGURE 13. Lectotype of Lindleyalis saueri Luer. Reproduced in Harvard Papers in Botany 17:333–368. 2012. C. Luer illustr. 21701. Fig. 27.

FIGURE 14. Pleurothallis saueri. A. Habit. B. Flower. C. Perianth dissected and close-up to margin of the petal. D. Ovary, column, and lip, lateral view and close-up of the margin of the lateral lobe and the midlobe. E. Lip adaxial and abaxial views with the basal lobes expanded. F. Column in lateral, ¾, and frontal views, with a close-up to the papillae of the clinandrium. G. Anther cap adaxial and abaxial views and pollinia. LCDP by L. Vélez-Abarca elaborated with photographs by Marco M. Jiménez from L. Vélez 0073.