Anthurium crystallinum Linden & André

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 : 660-662

Anthurium crystallinum Linden & André ( Fig. 3C)

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 68852 ( MO). Cerro Pirre, ridgetop and slope from Rancho Frío to Rancho Plastico; 08°01′N, 077°42′W; 800–1200 m; 10–20 Jul. 1977; J. P. Folsom 4206 ( MO). Ibid., valley between between Pirre and next most southernly peak, sloping hillside; 07°40′N, 077°42′W; 1250–1300 m; 10–20 Jul. 1977; J. P. Folsom 4449 ( MO). Base of Cerro Pirre near Piji Vasal; 08°03′N, 077°43′W; 21 Oct. 1977; J. P. Folsom 77-436 ( MO). Along path on ascending ridge to Cerro Pirre from Prijivasal, below 600 m site known as Rancho Frio, tall forest, but north lowland type; 07°57′N, 077°42′W; 600 m; 29 Jun. 1980; J. P. Folsom 8516 ( MO). Parque Nacional Darién, Ser- ranía de Pirre, campamento Rancho Frío, cercano a la loma ensucia pecho; 07°59′49″ N, 077°42′45″ W; 636 m; 2 Aug. 2016; O. O. Ortiz 2664 ( PMA). Ibid., campamento cerca del segundo mirador; 07°59′43″ N, 077°42′39″ W; 708 m; 3 Dec. 2016; O. O. Ortiz 2711 ( PMA), Ibid.; 07°59′49″ N, 077°42′43″ W; 610 m; 19 Jul. 2016; O. O. Ortiz 2724 ( PMA).

Identification. This species is distinguished by its terrestrial habit and dark velvety-green blades with the mid- rib and basal veins whitish, as well as its yellow spadices and reddish reflexed spathes. Due to the combination of the latter characters, this species can not be confused with any of its congeners present on Cerro Pirre.

Distribution and ecology. Although this species is commonly cultivated as ornamental, it appears to have a restricted distribution range, because it grows naturally only in Panama and Colombia ( Croat 1986b; TROPI- COS 2018). The known Panamanian populations are located exclusively in the Serranía de Pirre. During the fieldtrips, it was observed that this species grows only in the evergreen forests of Cerro Pirre, between 600 and 700 m. It is associated with shady places with extremely steep slopes in well drained soils.