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Physosiphon deregularis (Barb. Rodr.) Cogn.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Physosiphon minutiflorus Ames & C. Schweinf.
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Correa A., M. D., C. Galdames & M. Stapf. 2004. Cat. Pl. Vasc. Panamá 1–599. Smithsonian Tropical Research Institute, Panamá.
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Hammel, B. E., M. H. Grayum, C. Herrera Mora & N. Zamora. 2020-onward. Taxonomic and editorial changes made by the general editors to the on-line version of Manual de Plantas de Costa Rica. MPCR Vers. Internet
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Luer, C. A. 2003. Orchidaceae subtribu Pleurothallidinae. En: Manual de Plantas de Costa Rica. Vol. III. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). Monogr. Syst. Bot. Missouri Bot. Gard. 93: 18, 22–24, 29–32, 81–86, 87–90, 216–256, 277–291, 339–342, 346, 381–386, 386–452, 472–477, 481, cont.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Physosiphon spiralis Lindl.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Pleurothallis clausa A. Rich. ex Rchb. f.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Pleurothallis crassipes Lindl.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Pleurothallis crassipes Rchb. f.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Pleurothallis schweinfurthiana L.O. Williams
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Pseudostelis bradei Schltr.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Pseudostelis deregularis (Barb. Rodr.) Schltr.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Pseudostelis spiralis (Lindl.) Schltr.
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Dodson, C.H. & P.M. Dodson. 1980. Orchids of Ecuador. Icon. Pl. Trop. 3: 201–300.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
-
Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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Stelis deregularis Barb. Rodr.
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Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45: i–xl, 1–1286.
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Jørgensen, P. M. & S. León-Yánez. (eds.) 1999. Catalogue of the Vascular Plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75: i–viii, 1–1181.
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Luer, C. A. 1978. Icones Pleurothallidinarum (Orchidaceae). Miscellaneous new species and combinations in the Pleurothallidinae. Selbyana 2(4): 367–390.
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Luer, C. A. 1999. Icones Pleurothallidinarum XVIII. Systematics of Pleurothallis subgen. Pleurothallis, sect. Pleurothallis, subsect. Antenniferae, subsect. Longiracemosae, subsect. Macrophyllae–Racemosae, subsect. Perplexae, subgen. Pseudostelis, subgen. Acuminatia. Addenda to Dracula, Lepanthes, Masdevallia and Pleurothallis. Miscellaneous new species of Dryadella, Lepanthes and Pleurothallis. Monogr. Syst. Bot. Missouri Bot. Gard. 76: 1–182.
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Luer, C. A. 2003. Orchidaceae subtribu Pleurothallidinae. En: Manual de Plantas de Costa Rica. Vol. III. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). Monogr. Syst. Bot. Missouri Bot. Gard. 93: 18, 22–24, 29–32, 81–86, 87–90, 216–256, 277–291, 339–342, 346, 381–386, 386–452, 472–477, 481, cont.
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Sayers, B. & H. duPlooy. 2003. Additions to the orchid flora of Belize, Central America. Lankesteriana 8: 1–3.
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Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel Jarquín. 2001. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85: i–xlii,.
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