Abstract
A new species of Epidendrum from the northern Peruvian department of Amazonas belonging to the Incomptum group is described and illustrated. Epidendrum olorteguii is similar to E. tamaense but is easily distinguished by having the flowers green to yellow or rarely ivory white, the sepals lanceolate to oblong-lanceolate, acuminate, the petals narrowly elliptic, acuminate, and the lip trilobed, with lateral lobes prominent, transversely sub-rectangular, basal corners narrowly rounded, distal corner widely rounded and the mid-lobe with two obliquely triangular lobes, the sides involute, the apex with a short, thickened, narrowly triangular, reflexed apiculus. Information on its distribution, habitat, phenology, and conservation status are provided. On the other hand, E. olorteguii is also compared with three morphologically similar species, E. incomptum, E. tamaense and E. ornis.
References
<p>Acuña-Tarazona, M.E., Hágsater, E. & Santiago, E. (2019) <em>Epidendrum choccei </em>(Orchidaceae), a new species from northern Peru. <em>Phytotaxa</em> 394 (1): 98–104. https://doi.org/10.11646/phytotaxa.394.1.7</p>
<p>Bennett, D.E. & Christenson, E.A. (1993) <em>Icones Orchidacearum Peruviarum</em>. Part 1. A. Pastorelli de Bennett, pl. 92–118.</p>
<p>Bennett, D.E. & Christenson, E.A. (1995) <em>Icones Orchidacearum Peruviarum</em>. Part 2. A. Pastorelli de Bennett, pl. 306–325.</p>
<p>Bennett, D.E. & Christenson, E.A. (1998) <em>Icones Orchidacearum Peruviarum</em>. Part 3. A. Pastorelli de Bennett, pl. 499–515.</p>
<p>Bennett, D.E. & Christenson, E.A. (2001) <em>Icones Orchidacearum Peruviarum</em>. Part 4. A. Pastorelli de Bennett, pl. 687–712.</p>
<p>Brako, L. & Zarucchi, J.L. (1993) Catalogue of the Flowering Plants and Gymnosperms of Peru. <em>Monographs in Systematic Botany, Missouri Botanical Garden</em> 45: 1286 pp.</p>
<p>Chase, M.W., Cameron, K.M., Freudenstein, J.V., Pridgeon, A.M., Salazar, G., van den Berg, C. & Schuiteman, A. (2015) An updated classification of Orchidaceae. <em>Botanical Journal of the Linnean Society</em> 177: 151–174. https://doi.org/10.1111/boj.12234</p>
<p>Foldats, E. (1968) <em>Contribución a la orquidioflora de Venezuela. Acta Botánica Venezuelica</em> 3 (1-4): 305–426.</p>
<p>Goicochea, A., Gutiérrez, A., Ruiz, A. & Salas, M. (2019) <em>Orquídeas del Perú: Relación de Especies y sus Sinónimos</em>. Corporación G y G E.I.R.L., Moyobamba, Perú. 288 pp.</p>
<p>Granados Mendoza, C., Jost, M., Hágsater, E., Magallón, S., van den Berg, C., Moriarty Lemmon, E., Lemmon, A.R., Salazar, G.A. & Wanke, S. (2020) Target Nuclear and Off-Target Plastid Hybrid Enrichment Data Inform a Range of Evolutionary Depths in the Orchid Genus <em>Epidendrum. Frontiers in Plant Science </em>10: 1761. https://doi.org/10.3389/fpls.2019.01761</p>
<p>Hágsater, E. (1984) Towards an Understanding of the Genus <em>Epidendrum</em>. <em>In</em> Tan, K.W. (Ed.) <em>Proceedings of the Eleventh World Orchid Conference, Miami, U.S.A.</em> pp. 195–201.</p>
<p>Hágsater, E. & Salazar, G.A. (1993) The genus <em>Epidendrum</em>, Part 1. A century of new species in <em>Epidendrum.</em> <em>Icones Orchidacearum</em> 2: 101–200.</p>
<p>Hágsater, E. & Sánchez, S.L. (2001) The genus <em>Epidendrum</em>, Part 3. A third century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 4: 401–500.</p>
<p>Hágsater, E. & Sánchez, S.L. (2004) The genus <em>Epidendrum</em>, Part 4. A fourth century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 7: 701–800.</p>
<p>Hágsater, E. & Sánchez, S.L. (2006) The genus <em>Epidendrum</em>, Part 5. <em>Icones Orchidacearum</em> 8: 801–900.</p>
<p>Hágsater, E. & Sánchez, S.L. (2007) The genus <em>Epidendrum</em>, Part 6. <em>Icones Orchidacearum</em> 9: 901–1000.</p>
<p>Hágsater, E. & Sánchez, S.L. (2008) The genus <em>Epidendrum</em>, Part 7. <em>Icones Orchidacearum</em> 11: 1101–1200.</p>
<p>Hágsater, E. & Sánchez, S.L. (2009) The genus <em>Epidendrum</em>, Part 8. <em>Icones Orchidacearum</em> 12: 1201–1300.</p>
<p>Hágsater, E. & Sánchez, S.L. (2010) The genus <em>Epidendrum</em>, Part 9. <em>Icones Orchidacearum</em> 13: 1301–1400.</p>
<p>Hágsater, E. & Sánchez, S.L. (2013) The genus <em>Epidendrum</em>, Part 10. <em>Icones Orchidacearum</em> 14: pl. 1401–1500.</p>
<p>Hágsater, E. & Sánchez, S.L. (2015) The genus <em>Epidendrum</em>, Part 11. <em>Icones Orchidacearum</em> 15 (1): 1501–1568.</p>
<p>Hágsater, E. & Sánchez, S.L. (2016) The genus <em>Epidendrum</em>, Part 11. <em>Icones Orchidacearum</em> 15 (2): 1569–1600.</p>
<p>Hágsater, E. & Santiago, E. (2018a) The genus <em>Epidendrum</em>, Part 12. <em>Icones Orchidacearum</em> 16 (1): 1601–1667.</p>
<p>Hágsater, E. & Santiago, E. (2018b) The genus <em>Epidendrum</em>, Part 12. <em>Icones Orchidacearum</em> 16 (2): 1668–1700.</p>
<p>Hágsater, E. & Santiago, E. (2019) The genus <em>Epidendrum</em>, Part 13<em>. Icones Orchidacearum</em> 17 (1): 1701–1756.</p>
<p>Hágsater, E. & Santiago, E. (2020a) The genus <em>Epidendrum</em>, Part 13. <em>Icones Orchidacearum</em> 17 (3): 1757–1800.</p>
<p>Hágsater, E. & Santiago, E. (2020b) The genus <em>Epidendrum</em>, Part 14. Species new & old in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 18 (1): 1801–1848.</p>
<p>Hágsater, E. & Santiago, E. (2021) The genus <em>Epidendrum</em>, Part 14. <em>Icones Orchidacearum</em> 18 (2): 1849–1850.</p>
<p>Hágsater, E. & Soto-Arenas, M.A. (2005) <em>Epidendrum</em>. <em>In</em>: Pridgeon, A.M, Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (Eds.) <em>Genera Orchidacearum, 4: Epidendroideae</em> (Part 1). Oxford, England: Oxford University Press, pp. 236–251.</p>
<p>Hágsater, E., Sánchez, S.L. & García-Cruz, J. (1999) The genus <em>Epidendrum</em>, Part 2. A second century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 3: 301–400.</p>
<p>Linnaeus, C. (1763) <em>Species plantarum</em>, <em>Ed. </em>2. Impensis direct, Laurentii Salvii, Stockholm, pp. 1347–1353.</p>
<p>Navarro, R., Quispe-Melgar, W.C & Hágsater, E. (2020), <em>Epidendrum curimarcense </em>(Orchidaceae), a new species from central Peru, <em>Lankesteriana</em> 20 (1): 7–13. https://doi.org/10.15517/lank.v20i1.40781</p>
<p>Presl, C. (1830) <em>Reliquiae Haenjeanae, seu, Description et icones plantarum: quas in America merdicionali et boreali, in insulis Philippinis et Marianus collegit Thaddaeus Haenke</em> 1: 1–356, figs. 1–98.</p>
<p>Quispe-Melgar, H.R., Llacua-Tineo, Y.S., Ames-Martínez, F.N., Huayta, D., Lagones P., K.L. & Hágsater, E. (2022) <em>Epidendrum alejandrinae</em> (Orchidaceae: Laeliinae), a new species from the high Andean forests of central Peru. <em>Phytotaxa</em> 541 (3): 217–224. https://doi.org/10.11646/phytotaxa.541.3.1</p>
<p>Schweinfurth, C. (1959) Orchids of Peru. <em>Fieldiana Botany</em> 30: 261–531.</p>
<p>Schweinfurth, C. (1970) First Supplement to the Orchids of Peru. <em>Fieldiana</em>: <em>Botany</em> 30: 1–1026.</p>
<p>Ulloa Ulloa, C. (2019) Orchids from Peru. <em>In</em>: Ulloa Ulloa, C., Acevedo-Rodríguez, P., Beck, S., Belgrano, M.J., Bernal, R., Berry, P.E., Brako, L., Celis, Ma., Davidse, G., Forzza, R.C., Gradstein, S.R., Hokche, O., León, B., León-Yánez, S., Magill, R.E., Neill, D.A., Nee, M., Raven, P.H., Stimmel, H., Strong, M.T., Villaseñor, J.L., Zarucchi, J.L., Zuloaga, F.O. & Jørgensen, P.M. (2019 onwards), Vascular Plants of the Americas (VPA) Website. Tropicos, Botanical Information System at the Missouri Botanical Garden, St. Louis, Missouri, USA. Available from: http://www.tropicos.org/Project/VPA (accessed 25 November 2019)</p>
<p>Ulloa Ulloa, C., Acevedo-Rodríguez, P., Beck, S., Belgrano, M.J., Bernal, R., Berry, T.E., Brako, L., Celis, M., Davidse, G., Forzza, R.C., Gradstein, S.R., Hokche, O., Léon, B., Léon-Yánez, S., Magill, R.E., Neill, D.A., Nee, M., Raven, P.H., Stimmel, H., Strong, M.T., Villaseñor, J.L., Zarucchi, J.L., Zuloaga, F.O. & Jørgensen, P.M. (2017) An Integrative assessment of the vascular plant species of the Americas. <em>Science</em> 358: 1614–1617. https://doi.org/10.1126/science.aao0398</p>
<p>Ulloa Ulloa, C., Zarucchi, J. & León, B. (2004) <em>Diez años de adiciones a la flora del Perú: 1993–2003. Arnaldoa</em>, Ed. Especial, pp. 7–242. https://doi.org/10.5962/bhl.title.63538</p>
<p>WCSP (2020) World checklist of selected plant families. Facilitated by the Royal Botanic Gardens, Kew. Available from: http://apps.kew. org/wcsp/ (accessed 1 May 2020)</p>
<p>Zelenko, H. & Bermudez, P. (2009) <em>Orchid Species of Peru</em>. Zai Publications, Quito, 407 pp.</p>
<p>Bennett, D.E. & Christenson, E.A. (1993) <em>Icones Orchidacearum Peruviarum</em>. Part 1. A. Pastorelli de Bennett, pl. 92–118.</p>
<p>Bennett, D.E. & Christenson, E.A. (1995) <em>Icones Orchidacearum Peruviarum</em>. Part 2. A. Pastorelli de Bennett, pl. 306–325.</p>
<p>Bennett, D.E. & Christenson, E.A. (1998) <em>Icones Orchidacearum Peruviarum</em>. Part 3. A. Pastorelli de Bennett, pl. 499–515.</p>
<p>Bennett, D.E. & Christenson, E.A. (2001) <em>Icones Orchidacearum Peruviarum</em>. Part 4. A. Pastorelli de Bennett, pl. 687–712.</p>
<p>Brako, L. & Zarucchi, J.L. (1993) Catalogue of the Flowering Plants and Gymnosperms of Peru. <em>Monographs in Systematic Botany, Missouri Botanical Garden</em> 45: 1286 pp.</p>
<p>Chase, M.W., Cameron, K.M., Freudenstein, J.V., Pridgeon, A.M., Salazar, G., van den Berg, C. & Schuiteman, A. (2015) An updated classification of Orchidaceae. <em>Botanical Journal of the Linnean Society</em> 177: 151–174. https://doi.org/10.1111/boj.12234</p>
<p>Foldats, E. (1968) <em>Contribución a la orquidioflora de Venezuela. Acta Botánica Venezuelica</em> 3 (1-4): 305–426.</p>
<p>Goicochea, A., Gutiérrez, A., Ruiz, A. & Salas, M. (2019) <em>Orquídeas del Perú: Relación de Especies y sus Sinónimos</em>. Corporación G y G E.I.R.L., Moyobamba, Perú. 288 pp.</p>
<p>Granados Mendoza, C., Jost, M., Hágsater, E., Magallón, S., van den Berg, C., Moriarty Lemmon, E., Lemmon, A.R., Salazar, G.A. & Wanke, S. (2020) Target Nuclear and Off-Target Plastid Hybrid Enrichment Data Inform a Range of Evolutionary Depths in the Orchid Genus <em>Epidendrum. Frontiers in Plant Science </em>10: 1761. https://doi.org/10.3389/fpls.2019.01761</p>
<p>Hágsater, E. (1984) Towards an Understanding of the Genus <em>Epidendrum</em>. <em>In</em> Tan, K.W. (Ed.) <em>Proceedings of the Eleventh World Orchid Conference, Miami, U.S.A.</em> pp. 195–201.</p>
<p>Hágsater, E. & Salazar, G.A. (1993) The genus <em>Epidendrum</em>, Part 1. A century of new species in <em>Epidendrum.</em> <em>Icones Orchidacearum</em> 2: 101–200.</p>
<p>Hágsater, E. & Sánchez, S.L. (2001) The genus <em>Epidendrum</em>, Part 3. A third century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 4: 401–500.</p>
<p>Hágsater, E. & Sánchez, S.L. (2004) The genus <em>Epidendrum</em>, Part 4. A fourth century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 7: 701–800.</p>
<p>Hágsater, E. & Sánchez, S.L. (2006) The genus <em>Epidendrum</em>, Part 5. <em>Icones Orchidacearum</em> 8: 801–900.</p>
<p>Hágsater, E. & Sánchez, S.L. (2007) The genus <em>Epidendrum</em>, Part 6. <em>Icones Orchidacearum</em> 9: 901–1000.</p>
<p>Hágsater, E. & Sánchez, S.L. (2008) The genus <em>Epidendrum</em>, Part 7. <em>Icones Orchidacearum</em> 11: 1101–1200.</p>
<p>Hágsater, E. & Sánchez, S.L. (2009) The genus <em>Epidendrum</em>, Part 8. <em>Icones Orchidacearum</em> 12: 1201–1300.</p>
<p>Hágsater, E. & Sánchez, S.L. (2010) The genus <em>Epidendrum</em>, Part 9. <em>Icones Orchidacearum</em> 13: 1301–1400.</p>
<p>Hágsater, E. & Sánchez, S.L. (2013) The genus <em>Epidendrum</em>, Part 10. <em>Icones Orchidacearum</em> 14: pl. 1401–1500.</p>
<p>Hágsater, E. & Sánchez, S.L. (2015) The genus <em>Epidendrum</em>, Part 11. <em>Icones Orchidacearum</em> 15 (1): 1501–1568.</p>
<p>Hágsater, E. & Sánchez, S.L. (2016) The genus <em>Epidendrum</em>, Part 11. <em>Icones Orchidacearum</em> 15 (2): 1569–1600.</p>
<p>Hágsater, E. & Santiago, E. (2018a) The genus <em>Epidendrum</em>, Part 12. <em>Icones Orchidacearum</em> 16 (1): 1601–1667.</p>
<p>Hágsater, E. & Santiago, E. (2018b) The genus <em>Epidendrum</em>, Part 12. <em>Icones Orchidacearum</em> 16 (2): 1668–1700.</p>
<p>Hágsater, E. & Santiago, E. (2019) The genus <em>Epidendrum</em>, Part 13<em>. Icones Orchidacearum</em> 17 (1): 1701–1756.</p>
<p>Hágsater, E. & Santiago, E. (2020a) The genus <em>Epidendrum</em>, Part 13. <em>Icones Orchidacearum</em> 17 (3): 1757–1800.</p>
<p>Hágsater, E. & Santiago, E. (2020b) The genus <em>Epidendrum</em>, Part 14. Species new & old in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 18 (1): 1801–1848.</p>
<p>Hágsater, E. & Santiago, E. (2021) The genus <em>Epidendrum</em>, Part 14. <em>Icones Orchidacearum</em> 18 (2): 1849–1850.</p>
<p>Hágsater, E. & Soto-Arenas, M.A. (2005) <em>Epidendrum</em>. <em>In</em>: Pridgeon, A.M, Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (Eds.) <em>Genera Orchidacearum, 4: Epidendroideae</em> (Part 1). Oxford, England: Oxford University Press, pp. 236–251.</p>
<p>Hágsater, E., Sánchez, S.L. & García-Cruz, J. (1999) The genus <em>Epidendrum</em>, Part 2. A second century of new species in <em>Epidendrum</em>. <em>Icones Orchidacearum</em> 3: 301–400.</p>
<p>Linnaeus, C. (1763) <em>Species plantarum</em>, <em>Ed. </em>2. Impensis direct, Laurentii Salvii, Stockholm, pp. 1347–1353.</p>
<p>Navarro, R., Quispe-Melgar, W.C & Hágsater, E. (2020), <em>Epidendrum curimarcense </em>(Orchidaceae), a new species from central Peru, <em>Lankesteriana</em> 20 (1): 7–13. https://doi.org/10.15517/lank.v20i1.40781</p>
<p>Presl, C. (1830) <em>Reliquiae Haenjeanae, seu, Description et icones plantarum: quas in America merdicionali et boreali, in insulis Philippinis et Marianus collegit Thaddaeus Haenke</em> 1: 1–356, figs. 1–98.</p>
<p>Quispe-Melgar, H.R., Llacua-Tineo, Y.S., Ames-Martínez, F.N., Huayta, D., Lagones P., K.L. & Hágsater, E. (2022) <em>Epidendrum alejandrinae</em> (Orchidaceae: Laeliinae), a new species from the high Andean forests of central Peru. <em>Phytotaxa</em> 541 (3): 217–224. https://doi.org/10.11646/phytotaxa.541.3.1</p>
<p>Schweinfurth, C. (1959) Orchids of Peru. <em>Fieldiana Botany</em> 30: 261–531.</p>
<p>Schweinfurth, C. (1970) First Supplement to the Orchids of Peru. <em>Fieldiana</em>: <em>Botany</em> 30: 1–1026.</p>
<p>Ulloa Ulloa, C. (2019) Orchids from Peru. <em>In</em>: Ulloa Ulloa, C., Acevedo-Rodríguez, P., Beck, S., Belgrano, M.J., Bernal, R., Berry, P.E., Brako, L., Celis, Ma., Davidse, G., Forzza, R.C., Gradstein, S.R., Hokche, O., León, B., León-Yánez, S., Magill, R.E., Neill, D.A., Nee, M., Raven, P.H., Stimmel, H., Strong, M.T., Villaseñor, J.L., Zarucchi, J.L., Zuloaga, F.O. & Jørgensen, P.M. (2019 onwards), Vascular Plants of the Americas (VPA) Website. Tropicos, Botanical Information System at the Missouri Botanical Garden, St. Louis, Missouri, USA. Available from: http://www.tropicos.org/Project/VPA (accessed 25 November 2019)</p>
<p>Ulloa Ulloa, C., Acevedo-Rodríguez, P., Beck, S., Belgrano, M.J., Bernal, R., Berry, T.E., Brako, L., Celis, M., Davidse, G., Forzza, R.C., Gradstein, S.R., Hokche, O., Léon, B., Léon-Yánez, S., Magill, R.E., Neill, D.A., Nee, M., Raven, P.H., Stimmel, H., Strong, M.T., Villaseñor, J.L., Zarucchi, J.L., Zuloaga, F.O. & Jørgensen, P.M. (2017) An Integrative assessment of the vascular plant species of the Americas. <em>Science</em> 358: 1614–1617. https://doi.org/10.1126/science.aao0398</p>
<p>Ulloa Ulloa, C., Zarucchi, J. & León, B. (2004) <em>Diez años de adiciones a la flora del Perú: 1993–2003. Arnaldoa</em>, Ed. Especial, pp. 7–242. https://doi.org/10.5962/bhl.title.63538</p>
<p>WCSP (2020) World checklist of selected plant families. Facilitated by the Royal Botanic Gardens, Kew. Available from: http://apps.kew. org/wcsp/ (accessed 1 May 2020)</p>
<p>Zelenko, H. & Bermudez, P. (2009) <em>Orchid Species of Peru</em>. Zai Publications, Quito, 407 pp.</p>