Abstract
Xanthosoma gratiae, a new species of Araceae endemic to the seasonally dry forests of cordillera Chongón-Colonche in coastal Ecuador, is here formally described and illustrated.
References
<p>Boyce, P.C. & Croat, T.B. (2011 onwards) The Überlist of Araceae, Totals for Published and Estimated Number of Species in Aroid Genera. Available from: http://www.aroid.org/genera/20201008Uberlist.pdf (accessed 1 March 2022)</p>
<p>Cornejo, X. & Croat, T.B. (2021) <em>Anthurium gallardoae</em> and <em>Xanthosoma isabellanum</em> (Araceae), two new species from coastal Ecuador. <em>Phytotaxa</em> 505 (1): 107−113. https://doi.org/10.11646/phytotaxa.505.1.8</p>
<p>Croat, T.B., Benavides, G. & Santiana, J. (2011) Araceae. <em>In</em>: León-Yánez, S., Valencia, R., Pitman, N., Endara, L., Ulloa Ulloa, C. and Navarrete, H. (Eds.) <em>Libro Rojo de las Plantas Endémicas del Ecuador</em>, 2da. Edición. Publicaciones del Herbario QCA, Pontificia Universidad Católica del Ecuador, Quito, pp. 99−125.</p>
<p>Croat, T.B., Delannay, X. & Hannon, L.P. (2017) A Revision of <em>Xanthosoma</em> (Araceae). Part 1: Western South America. <em>Aroideana </em>40: 4–503.</p>
<p>Delannay, X., Cornejo, X. & Croat, T.B. (2019) Two new <em>Xanthosoma</em> (Araceae) species from Guayas province, Western Ecuador. <em>Aroideana</em> 42: 152–165.</p>
<p>IUCN Standards and Petitions Committee (2022) Guidelines for Using the IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and Petitions Committee. Downloadable from http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 1 March 2022)</p>
<p>Jackson, B.D. (1991) <em>A Glossary of Botanic terms with their derivation and accent</em>. 4<sup>th</sup> ed. London. Duckworth. 481 pp.</p>
<p>MAE. (2013) <em>Sistema de clasificación de los ecosistemas del Ecuador Continental.</em> Subsecretaría del Patrimonio Natural, Quito. pp. 9–206.</p>
<p>Ortiz, O.O., de Stapf, M.S & Croat, T.B. (2019) Diversity and distributional patterns of aroids (Alismatales: Araceae) along an elevational gradient in Darién, Panama. <em>Webbia</em> 75: 339–352. https://doi.org/10.1080/00837792.2019.1646465</p>
<p>Schott, H.W. (1829) Für Liebhaber der Botanik. <em>Wiener Zeitschrift für Kunst, Literatur, Theater und Mode</em> 94: 779–780.</p>
<p>Thiers, B. (2022) <em>Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium</em>. Available from: http://sweetgum.nybg.org/ih/ (accessed 1 March 2022)</p>
<p>Cornejo, X. & Croat, T.B. (2021) <em>Anthurium gallardoae</em> and <em>Xanthosoma isabellanum</em> (Araceae), two new species from coastal Ecuador. <em>Phytotaxa</em> 505 (1): 107−113. https://doi.org/10.11646/phytotaxa.505.1.8</p>
<p>Croat, T.B., Benavides, G. & Santiana, J. (2011) Araceae. <em>In</em>: León-Yánez, S., Valencia, R., Pitman, N., Endara, L., Ulloa Ulloa, C. and Navarrete, H. (Eds.) <em>Libro Rojo de las Plantas Endémicas del Ecuador</em>, 2da. Edición. Publicaciones del Herbario QCA, Pontificia Universidad Católica del Ecuador, Quito, pp. 99−125.</p>
<p>Croat, T.B., Delannay, X. & Hannon, L.P. (2017) A Revision of <em>Xanthosoma</em> (Araceae). Part 1: Western South America. <em>Aroideana </em>40: 4–503.</p>
<p>Delannay, X., Cornejo, X. & Croat, T.B. (2019) Two new <em>Xanthosoma</em> (Araceae) species from Guayas province, Western Ecuador. <em>Aroideana</em> 42: 152–165.</p>
<p>IUCN Standards and Petitions Committee (2022) Guidelines for Using the IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and Petitions Committee. Downloadable from http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 1 March 2022)</p>
<p>Jackson, B.D. (1991) <em>A Glossary of Botanic terms with their derivation and accent</em>. 4<sup>th</sup> ed. London. Duckworth. 481 pp.</p>
<p>MAE. (2013) <em>Sistema de clasificación de los ecosistemas del Ecuador Continental.</em> Subsecretaría del Patrimonio Natural, Quito. pp. 9–206.</p>
<p>Ortiz, O.O., de Stapf, M.S & Croat, T.B. (2019) Diversity and distributional patterns of aroids (Alismatales: Araceae) along an elevational gradient in Darién, Panama. <em>Webbia</em> 75: 339–352. https://doi.org/10.1080/00837792.2019.1646465</p>
<p>Schott, H.W. (1829) Für Liebhaber der Botanik. <em>Wiener Zeitschrift für Kunst, Literatur, Theater und Mode</em> 94: 779–780.</p>
<p>Thiers, B. (2022) <em>Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium</em>. Available from: http://sweetgum.nybg.org/ih/ (accessed 1 March 2022)</p>