{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T12:53:47Z","timestamp":1770728027627,"version":"3.49.0"},"reference-count":38,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2026,2,9]],"date-time":"2026-02-09T00:00:00Z","timestamp":1770595200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["PK"],"abstract":"<jats:p>\n                    A new complex of species is recognized within\n                    <jats:italic>Pleurothallis<\/jats:italic>\n                    subgenus\n                    <jats:italic>Pleurothallis<\/jats:italic>\n                    section Macrophyllae-Fasciculatae, comprising\n                    <jats:italic>P. crateriformis<\/jats:italic>\n                    ,\n                    <jats:italic>P. equipedites<\/jats:italic>\n                    ,\n                    <jats:italic>P. nipterophylla<\/jats:italic>\n                    ,\n                    <jats:italic>P. phymatodea<\/jats:italic>\n                    and\n                    <jats:italic>P. pyelophera<\/jats:italic>\n                    , as well as two new species.\n                    <jats:italic>Pleurothallis monteroae<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . and\n                    <jats:italic>Pleurothallis austrorientalis<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . from southeastern Ecuador are described and illustrated, bringing the number of described species in the complex to seven. Localities in southeastern Ecuador are confirmed for\n                    <jats:italic>P. pyelophera<\/jats:italic>\n                    and\n                    <jats:italic>P. equipedites<\/jats:italic>\n                    , species originally described from cultivated material lacking precise collection data. Diagnostic characters distinguishing the two new species from their most morphologically similar congeners, as well as from the other five members of the complex, are presented. Summarizing the traits characteristic of the group allowed recognition of eight additional undescribed species, mostly from Peru. Unusual characteristics of the\n                    <jats:italic>P. crateriformis<\/jats:italic>\n                    complex include a deeply \u201ccrateriform\u201d lip containing a nectar-like liquid, non-resupinate flowers, and extra-labellar nectar-like liquid. These attributes suggest a different pollination mechanism within\n                    <jats:italic>P.<\/jats:italic>\n                    sect. Macrophyllae-Fasciculatae, involving a shift from nototribic to sternotribic pollination. A possible case of morphological convergent evolution between the\n                    <jats:italic>P. crateriformis<\/jats:italic>\n                    complex and a group of non-resupinate\n                    <jats:italic>Pleurothallis<\/jats:italic>\n                    species from Mesoamerica is discussed.\n                  <\/jats:p>","DOI":"10.3897\/phytokeys.270.175070","type":"journal-article","created":{"date-parts":[[2026,2,9]],"date-time":"2026-02-09T16:10:45Z","timestamp":1770653445000},"page":"325-353","source":"Crossref","is-referenced-by-count":0,"title":["The Pleurothallis crateriformis complex (Orchidaceae): undescribed diversity and pollination biology of a newly recognized species group from Ecuador and Peru"],"prefix":"10.3897","volume":"270","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9502-5651","authenticated-orcid":true,"given":"Marco M.","family":"Jim\u00e9nez","sequence":"first","affiliation":[{"name":"Facultad de Ingenier\u00eda y Ciencias Aplicadas, Universidad de Las Am\u00e9ricas, Quito, Ecuador"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2456-0929","authenticated-orcid":true,"given":"Gabriel A.","family":"Iturralde","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda y Ciencias Aplicadas, Universidad de Las Am\u00e9ricas, Quito, Ecuador"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-8863-1557","authenticated-orcid":true,"given":"Nadia","family":"Lapo-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Floplaya, Compa\u00f1\u00eda de flores y plantas Yantzaza S.A., El Pangui, Ecuador"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4049-1652","authenticated-orcid":true,"given":"Henry X.","family":"Garz\u00f3n-Su\u00e1rez","sequence":"additional","affiliation":[{"name":"Grupo Cient\u00edfico Calaway Dodson, Investigaci\u00f3n y Conservaci\u00f3n de Orqu\u00eddeas del Ecuador, Quito, Ecuador"},{"name":"Universidad T\u00e9cnica Particular de Loja, Loja, Ecuador"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gerhard","family":"Vierling","sequence":"additional","affiliation":[{"name":"Unaffiliated, Neckargem\u00fcnd, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3245-4931","authenticated-orcid":true,"given":"Raven","family":"Ward","sequence":"additional","affiliation":[{"name":"Department of Organismal Biology and Ecology, Colorado College, Colorado Springs, United States of America"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3044-7471","authenticated-orcid":true,"given":"Mark","family":"Wilson","sequence":"additional","affiliation":[{"name":"Department of Organismal Biology and Ecology, Colorado College, Colorado Springs, United States of America"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2258","published-online":{"date-parts":[[2026,2,9]]},"reference":[{"key":"175070_B1","doi-asserted-by":"publisher","DOI":"10.3897\/zookeys.150.2109"},{"key":"175070_B2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-73526-7_1"},{"key":"175070_B3","unstructured":"Beentje H (2016) The Kew Plant Glossary: an illustrated dictionary of plant terms, Second Edition. 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