Anthurium terryae Standl. & L.O. Williams

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 : 671-672

Anthurium terryae Standl. & L.O. Williams ( Fig. 5E, F)

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 1574

( PMA). Ibid.; J. E. Batista 1577 ( PMA). Middle slopes on W side of Cerro Pirre; 07°56′N, 077°45′W; 800–1050 m; 29 Jun. 1988; T. B. Croat 68946 ( MO). Cerro Pirre, cloud forest and/or mossy forest; 07°50′N, 077°44′W; 750–1300 m; 9–10 Aug. 1967; J. A. Duke 13732 ( MO). Ibid.; J. A. Duke 13824 ( MO). Ascent of Cerro Pirre from Río Pirre S of El Real; 07°57′N, 077°43′W; 600– 750 m; 11 Aug. 1962; J. A. Duke 5327 ( MO). Cerro Pirre, cloud forest; 07°51′N, 077°44′W; Oct. 1962; J. A. Duke 6117 ( MO). Ibid., ridgetop and slope from Rancho Frío to Rancho Plástico; 08°01′N, 077°42′W; 800–1200 m; 10–20 Jul. 1977; J. P. Folsom 4201 ( MO). Ibid.; J. P. Folsom 4216 ( MO). Cerro Pirre, ridge top near Rancho Plastico; 07°57′N, 077°42′W; 1200 m; 10–20 Jul. 1977; J. P. Folsom 4278 ( MO). Ibid.; J. P. Folsom 4309 ( MO). Ibid., valley in between Pirre and mountain directly south; 07°40′N, 077°42′W; 10–20 Jul. 1977; J. P. Folsom 4357 ( MO). Ibid.; J. P. Folsom 4357 A ( MO). Top of ridge leading to Cerro Pirre, area near Rancho Plastico; 07°51′N, 077°42′W; 1200–1400 m; 13 Nov. 1977; J. P. Folsom 6273 ( MO). Along path on ascending ridge to Cerro Pirre from Pijibasal, nearly vertical ascent from Rancho Frio (600 m) to ridgetop grade running to Rancho Plastico (1100 m); 07°51′N, 077°42′W; 600–1100 m; 30 Jun. 1980; J. P. Folsom 8546 ( MO). Serranía Pirre, trail between Rancho Frío and the top ridge; 08°01′N, 077°43′W; 700 m; 10 Jul. 1977; R. L. Hartman 4461 ( 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 4681 ( MO). Ibid.; R. L. Hartman 4689 ( MO). Ibid., N end of range, 2–3 mi. N of Cerro Pirre; 07°56′N, 077°42′W; 1000–1100 m; 30 Dec. 1978; R. L. Hartman 8507 ( MO). Ibid.; R. L. Hartman 8521 ( MO). Ibid.; R. L. Hartman 8603 ( MO). Parque Nacio- nal 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 855 ( MO). Ibid.; H. Herrera 875 ( MO). On ridge of Cerro Pirre; 07°56′N, 077°42′W; 1000–1080 m; 14 Sept. 1989; G. McPherson 14081 ( 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 5474 ( MO). Parque Nacional Darién, Cerro Pirre; 07°46′00″N, 077°44′06″W; 1600 m; 12 May 1999; A. Zapata 1548 ( MO). Ibid.; 1400 m, Zapata 1577 ( PMA). Ibid., Rancho Plástico; 07°59′13″N, 077°42′28″W; 1127 m; 30 Jul. 2016; O. O. Ortiz 2634 ( MO, PMA). Ibid.; 07°58′57″N, 077°42′30″W; 1128 m; 18 Jul. 2016; O. O. Ortiz 2729 ( PMA).

Identification. This species is characterized by its epiphytic habit, short stems and internodes, persistent cataphylls such as fibers, short petioles, D-shaped in cross section with markedly triangular margins, black glan- dular-punctate blades on both surfaces, oblanceolate to elliptical blades, greenish-gray to blackish (when dry), green spathes, green spadices, flowers with whit- ish exserted stamens at anthesis, and pendent infructescences with white berries (sometimes greenish at the apex). Croat (1986b) mentioned that this species can have white berries that later turn purple when mature. On the contrary, all the individuals observed in the populations on Cerro Pirre have the ripe berries consistently white and the immature ones have the greenish apex. This species can be confused with the sympatrics Anthurium pirrense Croat and A. crassitepalum Croat , but both differs in having terete or subterete petioles and flowers with sta- mens immersed in the tepals at anthesis (never exserted).

Distribution and ecology. Endemic to Panama. In the study area it ocurrs only in the montane cloud forest above 1100 m. It usually grows in the lowest branches of the host trees (between 1 and 7 m) and probably represents the most abundant species of Araceae in the montane cloud forest of Cerro Pirre. During the samplings (carried out in the morning and afternoon), many adult individuals with mature berries were observed. However, seed dispersers were not observed. Therefore, possibly some species of mammal consumes the berries during the night. Additional observations are needed to determine the dispersers of this species.