Abstract
Austroblechnum bullatum, a new species from Colombia, is described and illustrated. This fern is characterized by having pendulous laminae, rachis abundantly covered with hairs up to 2.5 mm long, and pinnae bullate on both surfaces. In addition, the distribution range is extended for A. aequatoriense, a species previously known from northern Ecuador, and now also recorded for Colombia. Lastly, an identification key for the nine Colombian species of Austroblechnum is presented.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dittrich, V.A.O., Salino, A., Monteiro, R. & De Gasper, A.L. (2017) The family Blechnaceae (Polypodiopsida) in Brazil: key to the genera and taxonomic treatment of <em>Austroblechnum</em>, <em>Cranfillia</em>, <em>Lomaridium</em>, <em>Neoblechnum </em>and <em>Telmatoblechnum </em>for southern and southeastern Brazil. <em>Phytotaxa</em> 303: 1–33. https://doi.org/10.11646/phytotaxa.303.1.1</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gasper, A.L., Dittrich, V.A.O. & Salino, A. (2016) A classification for Blechnaceae (Polypodiales: Polypodiopsida): New genera, resurrected names, and combinations. <em>Phytotaxa </em>275: 191–227. https://doi.org/10.11646/phytotaxa.275.3.1</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">ITHAKA. (2020–2022) <em>Global Plants</em>. JStor. Available from: https://plants.jstor.org/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lellinger, D.B., Rolleri, C.H., Feuillet, C. & Windisch, P.G. (2002) <em>A modern multilingual glossary for taxonomic pteridology</em> (Vol. 3). American Fern Society, Washington, 263 pp. https://doi.org/10.5962/bhl.title.124209</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Missouri Botanical Garden. (2022) <em>Tropicos v3.3.2</em>. St. Louis, MO. Available from: https://www.tropicos.org/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Murillo-P., M.T., Murillo-A., J. & León-P., A. (2016) Pteridofitos (helechos y afines). <em>In</em>: Bernal, R., Gradstein, S.R. & Celis, M. (eds.) <em>Catálogo de plantas y líquenes de Colombia</em>. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, pp. 446–578.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Newman, E. (1844) <em>History of british fern, and allied plants.</em> John van Voorst, Paternoster Row, London, 435 pp. https://doi.org/10.5962/bhl.title.153595</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rojas-Alvarado, A.F. (2008) Notes in the <em>Blechnum l’herminieri </em>complex (Blechnaceae) from the Neotropics. <em>Métodos en Ecología y Sistemática</em> 3 (Supplement 1): 8–29.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rolleri, C.H. & Prada, C. (2006) Revisión de los grupos de especies del género <em>Blechnum </em>(Blechnaceae-Pteridophyta): el grupo <em>B. penna-marina</em>. <em>Acta Botanica Malacitana</em> 31: 7–50. https://doi.org/10.24310/abm.v31i31.7119</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Smith, A.R., Pryer, K.M., Schuettpelz, E., Korall, P., Schneider, H. & Wolf, P.G. (2006) A classification for extant ferns. <em>Taxon</em> 55: 705–731. https://doi.org/10.2307/25065646</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thiers, B. (2022) Index Herbariorum. New York Botanical Garden, New York, U.S.A. Available from: http://sweetgum.nybg.org/science/ih/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tryon, R.M. & Tryon, A.F. (1982) <em>Ferns and fern-allies from Tropical America</em>. Springer-Verlag, New York, 857 + xii pp. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gasper, A.L., Dittrich, V.A.O. & Salino, A. (2016) A classification for Blechnaceae (Polypodiales: Polypodiopsida): New genera, resurrected names, and combinations. <em>Phytotaxa </em>275: 191–227. https://doi.org/10.11646/phytotaxa.275.3.1</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">ITHAKA. (2020–2022) <em>Global Plants</em>. JStor. Available from: https://plants.jstor.org/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lellinger, D.B., Rolleri, C.H., Feuillet, C. & Windisch, P.G. (2002) <em>A modern multilingual glossary for taxonomic pteridology</em> (Vol. 3). American Fern Society, Washington, 263 pp. https://doi.org/10.5962/bhl.title.124209</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Missouri Botanical Garden. (2022) <em>Tropicos v3.3.2</em>. St. Louis, MO. Available from: https://www.tropicos.org/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Murillo-P., M.T., Murillo-A., J. & León-P., A. (2016) Pteridofitos (helechos y afines). <em>In</em>: Bernal, R., Gradstein, S.R. & Celis, M. (eds.) <em>Catálogo de plantas y líquenes de Colombia</em>. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, pp. 446–578.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Newman, E. (1844) <em>History of british fern, and allied plants.</em> John van Voorst, Paternoster Row, London, 435 pp. https://doi.org/10.5962/bhl.title.153595</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rojas-Alvarado, A.F. (2008) Notes in the <em>Blechnum l’herminieri </em>complex (Blechnaceae) from the Neotropics. <em>Métodos en Ecología y Sistemática</em> 3 (Supplement 1): 8–29.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rolleri, C.H. & Prada, C. (2006) Revisión de los grupos de especies del género <em>Blechnum </em>(Blechnaceae-Pteridophyta): el grupo <em>B. penna-marina</em>. <em>Acta Botanica Malacitana</em> 31: 7–50. https://doi.org/10.24310/abm.v31i31.7119</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Smith, A.R., Pryer, K.M., Schuettpelz, E., Korall, P., Schneider, H. & Wolf, P.G. (2006) A classification for extant ferns. <em>Taxon</em> 55: 705–731. https://doi.org/10.2307/25065646</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thiers, B. (2022) Index Herbariorum. New York Botanical Garden, New York, U.S.A. Available from: http://sweetgum.nybg.org/science/ih/ (accessed July 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tryon, R.M. & Tryon, A.F. (1982) <em>Ferns and fern-allies from Tropical America</em>. Springer-Verlag, New York, 857 + xii pp. </span></span></span></p>