O gênero Philodendron (Araceae) no estado do Paraná

Abstract

ResumoO trabalho apresenta a flora do gênero Philodendron (Araceae) no estado do Paraná. Foram registradas 13 espécies, incluindo duas espécies recentemente descritas e três novos registros para o estado: P. appendiculatum, P. bipinnatifidum, P. camposportoanum, P. corcovadense, P. crassinervium, P. eximium, P. loefgrenii, P. meridionale, P. missionum, P. obliquifolium, P. propinquum, P. rheophyticum AbstractThis work presents the flora of the genus Philodendron (Araceae) in the Paraná state, Brazil. Thirteen species were recorded, two of which are new: P. appendiculatum, P. bipinnatifidum, P. camposportoanum, P. corcovadense, P. crassinervium, P. eximium, P. loefgrenii, P. meridionale, P. missionum, P. obliquifolium, P. propinquum, P. rheophyticum and P. roseopetiolatum. The Philodendron species were found in the three main formations of Atlantic forest in the Paraná state: five species in the Seasonal Semideciduous Forest, seven species in the Araucaria Forest and in the Ombrophilous Dense Forest, which recorded the major representativeness, 11 species were recorded. Moreover, Ombrophilous Dense Forest showed a high endemism, with four exclusive species to this formation. Three species were considered critically endangered in the Paraná state: P. camposportoanum, P. eximium and P. roseopetiolatum. We present an identification key, photos, and illustrations of the diagnostic characters and taxonomic comments for each species.