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26 August 2016 Matelea hirtelliflora (Apocynaceae), a New Species of Milkweed Vine from Northeast Texas
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Abstract

A new species of milkweed vine from Texas, Matelea hirtelliflora (Apocynaceae), is described and illustrated. This species is similar to congeners in the southeastern United States, but is distinguished by hirtellous corollas with shorter petals than its presumed closest relatives and by corona lobes with fleshy segments, each with two triangular projections. The species is illustrated and compared to similar species of eastern Texas and the eastern United States. A key is provided for the species of Matelea in eastern Texas and extreme southeastern Oklahoma, and a distribution map is provided for the new species.

© 2016 by the American Society of Plant Taxonomists
Angela McDonnell and Mark Fishbein "Matelea hirtelliflora (Apocynaceae), a New Species of Milkweed Vine from Northeast Texas," Systematic Botany 41(3), 781-786, (26 August 2016). https://doi.org/10.1600/036364416X692460
Published: 26 August 2016
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