Anthurium obtusum (Engl.) Grayum

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 : 665-667

Anthurium obtusum (Engl.) Grayum

Material examined. 1–5 mi. downstream from El Real; 08°05′N, 077°44′W; 30 Jun 1962; J. A. Duke 4940 ( MO).

Identification. This species is characterized by its elongated and slender stems with long internodes, persistentfibrous cataphylls, black glandular-punctate blades and consistently erect spathes. In the study area, A. obtusum is similar to A. scandens subsp. Scheffer pusillum, but the latter has narrower leaves, very small spadices (ca 1.0 cm long) and reflexed spathes.

Distribution and ecology. Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, Guyana, French Guiana, Honduras, Mexico, Panama, Peru,

Suriname, and Venezuela. On Cerro Pirre, this species is only known from a collection made in the semidecidu- ous lowland forests. During the samplings, no individuals of this species were observed.