Aristida surperuanensis (Poaceae, Aristidoideae), a new species from a desert valley in southern Peru

Harol Gutiérrez; Roxana Castañeda; Victor Quipuscoa; Paul M. Peterson

doi:10.11646/phytotaxa.419.2.4

Aristida surperuanensis (Poaceae, Aristidoideae), a new species from a desert valley in southern Peru

Harol Gutiérrez, Roxana Castañeda, Victor Quipuscoa, Paul M. Peterson

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Aristida surperuanensis sp. nov. is described and illustrated. The new species, from southern Moquegua (Peru), differs from A. flaccida in having contracted panicles, spikelets to 1–1.1 cm long and lemmas 5.5–6.5 mm long. The central awn is straight, ascending, 3–6 mm long and lacking a column, the lateral awns are ascending, 1–2.5 mm long and 1/3 as long as the central awns, and the caryopses are fusiform and 4–4.5 (–6) mm long. A key to the species of Aristida in Peru is included and the conservation status of the new species is evaluated.

Original language	English
Pages (from-to)	182-188
Number of pages	7
Journal	Phytotaxa
Volume	419
Issue number	2
DOIs	https://doi.org/10.11646/phytotaxa.419.2.4
State	Published - 2 Oct 2019

Bibliographical note

Funding Information:
We thank Hilda Maria Longhi-Wagner for constructive comments that helped us improve the manuscript, the directors of the HSP, HUSA and HUT herbaria for facilitating access to their collections and Henry Castañeda for editing the illustration. Financial support was partly provided by the Universidad Científica del Sur, Lima, Perú (Resolución Directoral No. 01-DGIDI-Cientifica-2019).

Publisher Copyright:
Copyright © 2019 Magnolia Press

Keywords

Biodiversity
Grasses
Moquegua
South America
Taxonomy

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10.11646/phytotaxa.419.2.4

Cite this

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abstract = "Aristida surperuanensis sp. nov. is described and illustrated. The new species, from southern Moquegua (Peru), differs from A. flaccida in having contracted panicles, spikelets to 1–1.1 cm long and lemmas 5.5–6.5 mm long. The central awn is straight, ascending, 3–6 mm long and lacking a column, the lateral awns are ascending, 1–2.5 mm long and 1/3 as long as the central awns, and the caryopses are fusiform and 4–4.5 (–6) mm long. A key to the species of Aristida in Peru is included and the conservation status of the new species is evaluated.",

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AB - Aristida surperuanensis sp. nov. is described and illustrated. The new species, from southern Moquegua (Peru), differs from A. flaccida in having contracted panicles, spikelets to 1–1.1 cm long and lemmas 5.5–6.5 mm long. The central awn is straight, ascending, 3–6 mm long and lacking a column, the lateral awns are ascending, 1–2.5 mm long and 1/3 as long as the central awns, and the caryopses are fusiform and 4–4.5 (–6) mm long. A key to the species of Aristida in Peru is included and the conservation status of the new species is evaluated.

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KW - Taxonomy

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Aristida surperuanensis (Poaceae, Aristidoideae), a new species from a desert valley in southern Peru

Abstract

Bibliographical note

Keywords

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