Physalis macrosperma (Solanaceae: Physalinae), a new psammophyte endemic to the west Gulf Coastal Plain of the southeastern U.S.A., a global biodiversity hotspot
DOI:
https://doi.org/10.17348/jbrit.v13.i1.824Palabras clave:
Physalis, Solanaceae, West Gulf Coastal Plain, psammophyte, endemic, PhysalinaeResumen
Se describe e ilustra una nueva especie de Physalinae (Solanaceae) que es endémica de la llanura costera del oeste del Golfo, en el sudeste de los Estados Unidos, un punto de gran biodiversidad a nivel mundial. Physalis macrosperma sp. nov. se distingue por su gran cáliz fructífero obpiramidal (35–70 mm de longitud), el diámetro de las semillas [3.2–4.2(4.8) mm de longitud y 2.5–3.5(3.9) mm de ancho], y la testa de la semilla que es característicamente groseramente foveolada. Se presenta el entorno ecológico y la distribución geográfica de P. macrosperma y sus relaciones morfológicas con taxones similares. Physalis macrosperma es una hierba psanmófila perenne que habita en arenales abiertos en bosques de sabana pirógena de arenales y dunas xéricas. Ocurre en suelos cuarcíticos ondulados y secos del Eoceno en el centrosur y centro-este de Texas y en arenas xéricas más jóvenes incrustadas en el pinar mantenido por fuego en el sudoeste de Akansas, el oeste de Luisiana y el sudeste de Texas.
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