Anthurium lancifolium Schott

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 : 664-665

Anthurium lancifolium Schott ( Fig. 3H)

Material examined. Cerro Pirre, Rancho Plástico, Serranía del Pirre, PN Darién, bosque nuboso; 07°59′23″ N, 077°42′28″ W; 1077 m; 20 Apr. 2016; J. E. Batista 1576 ( PMA). Middle slopes on W side of Cerro Pirre; 07°56′N, 077°45′W; 800–1050 m; 29 Jun. 1988; T. B. Croat 68947 ( MO). Rancho Frío (500 m) to summit of Cerro Pirre (1140 m); 07°51′N, 077°42′W; 500–1140 m; 30 March 1985; W. G. D ’ Arcy 16186 ( MO). Cerro Pirre, cloud forest and/ or mossy forest; 07°50′N, 077°44′W; 760–1370 m; 9–10 Aug. 1967; J. A. Duke 13739 ( MO). Ibid., ridge top near Rancho Plastico; 07°57′N, 077°42′W; 1200 m; 10–20 Jul. 1977; J. P. Folsom 4268 ( MO). Area from below Rancho Frío to near ridgetop of Pirre chain; 07°57′N, 077°42′W; 600–1100 m; 15 Nov. 1977; J. P. Folsom 6355 ( MO, PMA). Along path on ridgetop of/to Cerro Pirre from base camp called Rancho Plastico (1100 m); 07°51′N, 077°42′W; 1100–1200 m; 1 Jul. 1980; J. P. Folsom 8577 ( MO). Summit of Cerro Pirre, cloud forest; 07°55′21″N, 077°42′57″W; 1000–1400 m; 29 Dec. 1972; A. H. Gentry 7030 ( MO). Ibid.; 07°55′21″N, 077°42′57″W; 1000– 1400 m; 29 Dec. 1972; A. H. Gentry 7103 ( MO). Slopes of Cerro Pirre; 07°57′N, 077°42′W; 500–1000 m; 30 Dec. 1972; A. H. Gentry 7149 ( MO). Serranía Pirre, 1–1.5 mi. S on ridge from intersection with trail to Rancho Frío; 08°00′N, 077°44′W; 900 m; 10 Jul. 1977; R. L. Hartman 4464 ( MO, PMA). Ibid., trail ca 1 mi. SSW of Cerro Pirre summit; 07°56′N, 077°42′W; 1200 m; 15 Jul. 1977; R. L. Hartman 4694 ( MO). Parque Nacional Darién, caminando entre Campamento Rancho Frío No. 2 hacia la cima de Cerro Pirre; 08°00′N, 077°45′W; 700–1000 m; 7 Feb. 1991; H. Herrera 873 ( MO). Ibid.; 08°00′N, 077°45′W; 700–1000 m; 7 Feb. 1991; H. Herrera 876 ( MO). Ibid., Cerro Pirre; 07°52′N, 077°43′W, 1000– 1060 m; 7 Feb. 1991; H. Herrera 884 ( MO). South of El Real on trail up Cerro Pirre, forest; 08°00′N, 077°45′W; 550–1030 m; 29 Mar 1985; G. McPherson 7047 ( MO). North slopes of Cerro Pirre, lower montane rain forest (cloud forest); 07°54′N, 077°42′W; 700–950 m; 7 Apr. 1975; S. Mori 5472 ( 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 2583 ( PMA). Ibid.; 07°59′13″ N, 077°42′28″ W; 1127 m; 30 Jul. 2016; O. O. Ortiz 2640 ( PMA).

Identification. Anthurium lancifolium represents one of the most common species of the genus in Panama and is also one of the most morphologically variable (Croat 1986). This species is recognized by its habitually terrestrial habit, short stems with persistent fibrous cata- phylls and dark glandular-punctacte blades on both surfaces. All the material examined from Cerro Pirre constitutes the typical variety A. lancifolium var. lancifolium . The other known variety, A. lancifolium var. albifructum Croat is differentiated by having white ber- ries and is restricted to western Panama (Croat 1986). In the study area, A. lancifolium could be confused with A. ramonense Engl. ex K. Krause , but this latter species has blades with black glandular-punctate only on the lower surface and reddish spadices.

Distribution and ecology. Colombia, Costa Rica, Nicaragua and Panama. This species is widely distributed in Panama and grows in areas of low to mid-elevations (100–1600 m). On Cerro Pirre, it is highly common in the montane cloud forests. Usually, it has a terrestrial habit, but in places above 1100 m, it can grow occasionally as an epiphyte.