Philodendron lazorii 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 : 679

Philodendron lazorii Croat

Material examined. Middle slopes on W side of Cerro Pirre; 07°56′N, 077°45′W; 800–1050 m; 29 Jun. 1988; T. B. Croat 68953 ( MO). Vicinity Cerro Pirre, along trail from base camp to Rancho Frío on slopes of Cerro Pirre; 07°58′N, 077°43′W; 200–450 m; 27 Jul. 1994; T. B. Croat 77126 ( MO). Serranía de Pirre, trail ca 1 mi. SSW of Cerro Pirre summit; 07°56′N, 077°42′W; 1200 m; 15 Jul. 1977; R. L. Hartman 4660 ( MO).

Identification. This species is distinguished by having thick and short internodes, persistent and semi-intact cataphylls, terete petioles (1.25 times longer than the blade), and broadly ovate blades, greenish-gray when dry. Philodendron lazorii is similar to the sympatric P. panamense K. Krause , which differs in having glossy ovate-triangular blades, petioles usually shorter than the blade and shorter peduncles (usually shorter than spathe).

Distribution and ecology. Colombia and Panama. According to the information of the collections, this species is distributed throughout the Cerro Pirre elevation gradient, in semideciduous, evergreen, and montane forests.