Salicornia cuscoensis (Amaranthaceae/Chenopodiaceae), a new species from Peru (South America)

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Title: Salicornia cuscoensis (Amaranthaceae/Chenopodiaceae), a new species from Peru (South America)
Authors: Alonso-Vargas, M. Angeles | Crespo, Manuel B. | Freitag, Helmut
Research Group/s: Botánica y Conservación Vegetal
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad
Keywords: High Andean saltmarshes | Salicornia | Sarcocornia | Taxonomy | Eudicots
Knowledge Area: Botánica
Issue Date: 5-Sep-2017
Publisher: Magnolia Press
Citation: Phytotaxa. 2017, 319(3): 254-262. doi:10.11646/phytotaxa.319.3.4
Abstract: The name Salicornia cuscoensis given to a plant from high Andean saltmarshes near Cusco [Cuzco] and Ayacucho, Peru (South America) is validated by a diagnosis and description. The main morphological characters that separate S. cuscoensis from other closely related species are creeping habit, delicate branches, inflorescence of short and thin spikes, and seed indumentum. The new species clearly differs from other perennial Salicornia taxa growing in high Andean saltmarshes such as S. pulvinata and S. andina. The former forms small compact cushions producing very short, few-flowered inflorescences. The latter shows woody stems and forms larger rounded carpets. Morphologically, S. cuscoensis is also similar to S. magellanica, a species growing along the seashore in southern Patagonia and Tierra del Fuego, but the latter has shorter and wider inflorescences and larger seeds with a different type and arrangement of indumentum. Molecular analyses also supported the separation of S. cuscoensis. Data on habitat, distribution and phylogenetic relationships are presented for the new species and its relatives, and an identification key is given for the South American taxa of the genus Salicornia.
Sponsor: This research was partly supported by the grants ACIE 14–01 and ACIE 16–03 from the University of Alicante.
ISSN: 1179-3155 (Print) | 1179-3163 (Online)
DOI: 10.11646/phytotaxa.319.3.4
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Magnolia Press
Peer Review: si
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Appears in Collections:INV - BotCoVe - Artículos de Revistas

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