Hypericum bordignonii (Hypericaceae) is a new species from Rio Grande do Sul, Brazil. This species belongs to Hypericum section Trigynobrathys, and is morphologically most similar to H. legrandii. The new species can be distinguished from all other species of the genus by having anthers with prolonged connectives, a characteristic that has never been described before for Hypericum. Moreover, the species is endemic to a single granite hill called Santa Teresa in Porto Alegre municipality, in Southern Brazil. We present here a morphological description and illustrations of H. bordignonii. We also provide information on the conservation status of the species and suggest its inclusion in the IUCN red list of threatened species as critically endangered (CR).
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15 December 2015
A New Threatened Species of Hypericum from the South Brazilian Pampa Biome
Cleusa Vogel Ely,
Ilsi Iob Boldrini
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Systematic Botany
Vol. 40 • No. 4
December 2015
Vol. 40 • No. 4
December 2015
Endemism
Hypericum section Trigynobrathys
IUCN red list of threatened species
Rio Grande do Sul
taxonomy