Dioscorea chusqueifolia (Dioscoreaceae), a new species from northern Peru

A new species, Dioscorea chusqueifolia (Dioscoreaceae), is described and illustrated. It is known only from two nearby localities in the Province of Bolívar (Department of La Libertad) in northern Peru, where it grows in the transitional zone between equatorial dry forest and montane forest at 700–9...

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Bibliographic Details
Published inBrittonia Vol. 71; no. 4; pp. 353 - 358
Main Authors Romero-Hernández, Carolina, Téllez-Valdés, Oswaldo, Bussmann, Rainer W.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2019
Springer Nature B.V
Subjects
Biomedical and Life Sciences
Dioscorea
Dioscoreaceae
Dry forests
Forests
Life Sciences
Montane environments
Mountain forests
New species
Original Research
Physical characteristics
Plant Anatomy/Development
Plant Ecology
Plant Physiology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Seeds
Stamens
Peru
Bolívar Province
South America
Dioscoreales
Section
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Summary:A new species, Dioscorea chusqueifolia (Dioscoreaceae), is described and illustrated. It is known only from two nearby localities in the Province of Bolívar (Department of La Libertad) in northern Peru, where it grows in the transitional zone between equatorial dry forest and montane forest at 700–900 m elevation. The new species is distinguished by a unique combination of features, such as the form and size of its leaves (narrowly lanceolate and 0.15–1.9 cm wide), the presence of six stamens, the absence of a pistilodium, a reduced stylar column, terete styles, and peripherally winged seeds; because of this unique set of characters, D . chusquefolia cannot be placed within any of the currently recognized sections within Dioscorea .
ISSN:0007-196X
1938-436X
DOI:10.1007/s12228-019-09587-8