A new species of Chusquea subg. Rettbergia (Poaceae: Bambusoideae: Bambuseae) from Bolivia and a range extension and revised description for C. yungasensis
DOI :
https://doi.org/10.17348/jbrit.v20.i1.1466Mots-clés :
Andean biodiversity, ANMI Apolobamba, Chusqueinae, Neotropical woody bamboosRésumé
Chusquea latispicula, the second species of Chusquea subg. Rettbergia to be confirmed from Bolivia, is here described, illustrated, and compared with C. yungasensis. The new species is distinguished primarily on spikelet characters, including spikelet length and number of nerves on the lemma, but mainly by its spikelet width of 4–5 mm, for which this species is named. The new species is known from only one collection and thus is considered endemic to Bolivia. Four additional collections of C. yungasensis have been recorded since its original description in 2014, representing a range extension into the department of Cochabamba, which is documented herein. The newer collections also provide the basis for an updated description of this species. A preliminary conservation status assessment for C. latispicula and a revised one for C. yungasensis are included.
Références
CLARK, L.G. 1997. Diversity, biogeography and evolution of Chusquea. In: G. Chapman, ed. The bamboos, Linnean Society symposium series no. 19. Academic Press, San Diego, California, U.S.A. Pp. 33–44.
FADRIQUE, B., E.M. PIANISSOLA, K.J. FEELEY, & L.G. CLARK. 2019. A preliminary revision of Chusquea sect. Swallenochloa (Bambuseae, Bambusoideae, Poaceae) in Peru including the description of two new species and the resurrection of two other species. Phytotaxa 418:171–194. https://doi.org/10.11646/phytotaxa.418.2.3
FISHER, A.E., J.K. TRIPLETT, C. HO, A.D. SCHILLER, K.A. OLTROGGE, E.S. SCHRODER, S.A. KELCHNER, & L.G. CLARK. 2009. Paraphyly in the bamboo subtribe Chusqueinae (Poaceae: Bambusoideae), and a revised infrageneric classification for Chusquea. Syst. Bot. 34:673–683. http://dx.doi.org/10.1600/036364409790139790
FISHER, A.E., L.G. CLARK, & S.A. KELCHNER. 2014. Molecular phylogeny estimation of the bamboo genus Chusquea (Poaceae: Bambusoideae: Bambuseae) and description of two new subgenera. Syst. Bot. 39: 829–844. http://www.bioone.org/doi/full/10.1600/036364414X681554
GOOGLE EARTH PRO DEVELOPMENT TEAM. 2025. Google Earth Pro (version 7.3.6.10201). Google LLC.
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1. Gland, Switzerland and Cambridge, U.K. 32 pp.
GUERREIRO, C., N.F. BRIGNONE, L.G. CLARK, & A.S. VEGA. 2025. A trip of a bamboo lifetime: Tracing the origin and evolution of Chusquea (Poaceae, Bambusoideae, Bambuseae) in Patagonia, southernmost South America. Bot. J. Linn. Soc. 207: 308–320. https://doi.org/10.1093/botlinnean/boae048
IUCN [Red List Technical Working Group]. 2018. Mapping standards and data quality for the IUCN Red List categories and criteria. Version 1.16. Gland, Switzerland: IUCN. https://portals.iucn.org/library/sites/library/files/documents/RL-2001-001-2nd.pdf. Accessed 3 Sep 2025.
IUCN [Standards and Petitions Committee]. 2024. Guidelines for using the IUCN Red List categories and criteria. Version 16. Gland, Switzerland: IUCN. https://www.iucnredlist.org/documents/RedListGuidelines.pdf. Accessed 3 Sep 2025.
MARCONI RIPA, L. 2019. El bosque basimontano del suroeste de la región del Madidi. In: M. Cornejo Mejía & A.F. Fuentes Claros, eds. Conocimientos y usos de las plantas de los bosques basimontanos suroeste de la Región del Madidi, distrito Paujeyuyo (ANMI Apolobamba), Bolivia. Antofagasta impresores, La Paz, Bolivia. Pp. 6–8.
MOTA, A.C. 2013. Sistemática de Chusquea subgênero Rettbergia (Bambusoideae, Poaceae). Ph.D. dissertation. Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brasil.
MOTA, A.C., I. JIMÉNEZ PÉREZ, R.P. DE OLIVEIRA, & L.G. CLARK. 2014. Chusquea yungasensis (Bambusoideae, Poaceae): A new species of woody bamboo from South America and the first record of subgenus Rettbergia in Bolivia. Phytotaxa 161(3):211–218. http://dx.doi.org/10.11646/phytotaxa.161.3.4
NAVARRO, G. & M. MALDONADO. 2002. Geografía Ecológica de Bolivia: Vegetación y Ambientes Acuáticos. Editorial: Centro de Ecología Simón I. Patiño-Departamento de Difusión, Cochabamba, Bolivia. 719 pp.
POHL, R.W. 1965. Dissecting equipment and materials for the study of minute plant structures. Rhodora 67:95–96.
QGIS DEVELOPMENT TEAM. 2021. QGIS Geographic Information System (version 3.18.2-Zürich). Open Source Geospatial Foundation.
QUACH, T. 2025. HCMGIS - Basemaps, Download OpenData, Batch Converter, VN-2000 Projections, and Field Calculation Utilities (version 25.1.9). https://plugins.qgis.org/plugins/HCMGIS. Accessed 17 Nov 2025
REFULIO-RODRIGUEZ, N.F., P.C. KLAHS, T.D. LEANDRO, E.K. MCMURCHIE, & L.G. CLARK. 2025. A new species of Chusquea subg. Swallenochloa (Poaceae: Bambusoideae) from the Peruvian upper montane forest. Phytotaxa 716(4):231–247. https://doi.org/10.11646/phytotaxa.716.4.1
RUIZ-SANCHEZ, E., C.D. TYRRELL, X. LONDOÑO, R.P. OLIVEIRA, & L.G. CLARK. 2021. Diversity, distribution, and classification of Neotropical woody bamboos (Poaceae: Bambusoideae) in the 21st Century. Bot. Sci. 99:198–228. https://dx.doi.org/10.17129/botsci.2722
VIDAL, K.V.A., C.A.D. WELKER, I.L.C. OLIVEIRA, A.C. MOTA, R.P. OLIVEIRA, & L.G. CLARK. 2018. A new species of Chusquea subg. Chusquea (Poaceae—Bambusoideae—Bambuseae) from Minas Gerais, Brazil: morphological evidence and phylogenetic placement within the Euchusquea clade. Phytotaxa 365:73–88. https://doi.org/10.11646/phytotaxa.365.1.3
WORLD WILDLIFE FUND. 2006. South America: Void-filled digital elevation model, 15s resolution, 2006 in EarthWorks. https://earthworks.stanford.edu/catalog/stanford-rm470dn6126. Accessed 17 Nov 2025
WORLD WILDLIFE FUND. 2007. Central America: Void-filled digital elevation model, 15s resolution, 2007 in EarthWorks. https://earthworks.stanford.edu/catalog/stanford-jf534gx6067. Accessed 17 Nov 2025
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