Lomagramma guianensis
Diagnostic description 1
Lomagramma guianensis (Aubl.) Ching, Amer. Fern J. 22: 17. 1932.
Basionym: Polypodium guianense Aubl.
Terrestrial fern. Rhizomes climbing by aerial roots, reddish brown, 3-7 mm wide, with deltoidattenuate scales, 1-1.5 mm long. Fronds horizontal or pendulous. Sterile fronds 0.45-1 m long; stipes 6-20 cm long, dark brown, glabrous or with some scattered scales; rachis cylindrical toward the base, narrowly winged toward the apex; pinnae 20-50, alternate or subopposite, elliptical to lanceolate, chartaceous, 6-14 × 1-2.3 cm, the apex long-acuminate, the base cuneate, unequal, the margins serrate, glabrous or with some scattered hairs on the lower surface; midvein prominent on both surfaces, secondary venation reticulate, slightly prominent, yellowish. Fertile fronds smaller than the sterile ones; pinnae linear, 2-5 × 2-4 mm, the apex obtuse, the base obtuse; lower surface densely covered with ferruginous sporangia.
Phenology: Collected in fertile condition in May.
Status: Native, uncommon.
Selected Specimens Examined: Proctor, G.R. 41108; Sintenis, P. 426; 526.
Distribution 2
Distribution: In moist forests at lower and middle elevations. Also in Cuba, Hispaniola, Venezuela, French Guiana, and Brazil.
Public forest: Maricao.
Sources and Credits
- (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435041
- (c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435639
