Philodendron edenudatum Croat

Ortiz, Orlando Oriel, de Stapf, María Sánchez, Baldini, Riccardo Maria & Croat, Thomas Bernard, 2019, Synopsis of aroids (Alismatales, Araceae) from Cerro Pirre (Darién Province, Panama), Check List 15 (4), pp. 651-689 : 677-678

Philodendron edenudatum Croat ( Fig. 8A)

Material examined. Middle slopes on W side of Cerro Pirre; 07°57′N, 077°46′W; 550–760 m; 28 Jun. 1988; T. B.

Croat 68891 ( MO). Ibid.; T. B. Croat 68901 ( MO). Ibid.; T. B. Croat 68903 ( MO). Cerro Pirre, vicinity of station along Río Perisenico; 08°01′N, 077°44′W; 110 m; 26 Jul. 1994; T. B. Croat 77087 ( MO). Vicinity Cerro Pirre, 17 km S of El Real, along trail from base camp, along Río Perisenico; 08°01′N, 077°44′W; 100 m; 28 Jul. 1994; T. B. Croat 77185 ( MO). Parque Nacional Darién, Cerro Pirre, Rancho Plástico, camino hacia la cima del Cerro; 07°59′49″N, 077°42′45″W; 636 m; 15 Apr. 2016; O. O. Ortiz 2584 ( PMA). Ibid.; O. O. Ortiz 2589 ( PMA). Ibid., orillas del río Perresenico; 08°01′11″N, 077°43′51″W; 110 m; 1 Dec. 2016; O. O. Ortiz 2698 ( PMA). Ibid.; O. O. Ortiz 2708 ( PMA).

Identification. This species is characterized by having slightly elongated internodes, two-ribbed, persistent intact cataphylls, usually mottled purple D-shaped petioles in cross section, ovate blades (often with purple spots on lower surface) with non-naked posterior ribs; solitary inflorescences with red-purple spathe tubes on both surfaces. Philodendron edenudatum is very similar to the sympatric P. sagittifolium Liebm. , which differs in having terete or subterete petioles and deciduous cataphylls in most upper nodes.

Distribution and ecology. This endemic species is only known from Veraguas (Santa Fe) and Darién (Pirre). In the study area, Philodendron edenudatum is relatively common in semideciduous and evergreen forests, at sites between 90 to 800 m. Generally, it grows as apressedclimbing plants to the host trees.