Anthurium tonduzii Engl.

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 : 672

Anthurium tonduzii Engl. ( Fig. 5G)

Material examined. Cerro Pirre, Rancho Carajo, Serranía del Pirre, PN Darién, bosque nuboso; 07°58′59″N, 077°42′29″W; 1118 m; 21 Apr. 2016; J. E. Batista 1578 ( PMA). Middle slopes on W side of Cerro Pirre; 07°56′N, 077°45′W; 800–1050 m; 29 Jun. 1988; T. B. Croat 68921 ( MO). Cerro Pirre, ridge top near Rancho Plastico; 07°57′N, 077°42′W; 1200 m; 10–20 Jul. 1977; J. P. Folsom 4301 ( MO). Serranía de Pirre, N end of range, 2–3 mi. N of Cerro Pirre; 07°56′N, 077°42′W; 1000–1100 m; 29 Dec. 1978; R. L. Hartman 8496 ( MO). Ibid., vicinity of Cerro Pirre; 07°52′N, 077°46′W; 1300–1500 m; 2 Jan. 1979; R. L. Hartman 8547 ( MO). Parque Nacional Darién. Serranía de Pirre, Rancho Plástico; 07°59′13″N, 077°42′28″W; 1127 m; 30 Jul. 2016; O. O. Ortiz 2641 ( PMA).

Identification. This species is characterized by its epiphytic-climbing habit, long stems and internodes, intact and deciduous cataphylls in most of the upper nodes, black glandular-punctate blades, ovate to ovate-elliptic, reddish spadices, and white berries (violet at apex). On Cerro Pirre, this species can be confused with Anthurium scandens subsp. pusillum Scheffer and A. obtu- sum (Engl.) Grayum, but both differs mainly in having fibrous and persistent cataphylls.

Distribution and ecology. Colombia, Costa Rica, Ecuador, and Panama. This species ocurrs in the submontane and montane forests of Cerro Pirre, generally in places above 800 m. It is relatively common in shaded or semishaded areas.