Trypethelium flavopigmentosum (lichenized Ascomycota: Trypetheliaceae), a new lichen species from Mt. Palhi, Dinagat Islands, Philippines
DOI:
https://doi.org/10.17348/jbrit.v20.i3.1488Palabras clave:
Mindanao, Philippine lichens, pyrenolichens, taxonomy, tropical lichensResumen
Durante nuestras continuas expediciones en las Islas Dinagat, en el sur de Filipinas, se descubrió una nueva especie, Trypethelium flavopigmentosum Taer y Aptroot, que se describe aquí. Se parece mucho a T. luteolucidum en el talo y pseudostromas que reaccionan UV+ amarillo, la presencia de lichexantona y el hamatecio disperso. Sin embargo, T. flavopigmentosum se distingue por su pigmento amarillo prominente en la superficie de los pseudostromas, con un pigmento amarillo polvoriento adicional en el interior, y por poseer ascosporas más pequeñas, de 9–10 septos, 41–61 × 9–13 μm. Este descubrimiento representa la primera especie de líquen documentada del Monte Palhi y enfatiza aún más la biodiversidad excepcional que sostienen los ecosistemas de bosques ultramáficos. Dadas las crecientes presiones antropogénicas, estos hallazgos subrayan la necesidad urgente de protección legislativa y una gestión de conservación reforzada en las Islas Dinagat.
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