Monographs Details:
Authority:
Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.
Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.
Family:
Polypodiaceae
Polypodiaceae
Description:
Species Description - Rhizome short-creeping, 3-7 mm thick, nodose, usually pruinose, clothed with light- to darkbrown, clathrate, broadly ovate to lanceolate scales 2-4 mm long, tardily deciduous and eventually leaving older parts of rhizome naked. Fronds crowded-distichous, ascending, arching, or pendent, with or vrithout a distinct stipe. Blades narrowly to broadly linear, 15-70 cm long, 0.3-1.8 cm broad, the apex attenuate and subulatefalcate, the base long-decunent, the margins entire, narrowly cartilaginous, more or less revolute; veins forming 1-3 uneven rows of areoles, each with one or two included free veinlets; tissue rigid-coriaceous. Sori inegularly 1- or 2-(3-)seriate, each terminal on a free areolar veinlet.
Distribution and Ecology - General Distribution. Florida, Greater Antilles, Guadeloupe, and continental tropical America from Mexico to Bolivia and Brazil. Distribution in Puerto Rico. Of widely scattered occunence; recorded from Arecibo, Barranquitas, Cayey, Jayuya, Juana Diaz, Maricao, Quebradillas, Utuado, Villalba, and Yauco. To be expected in many other areas. Habitat. On trunks and branches of trees, rocky banks, and in crevices of boulders and cliflfs, at middle to high elevations (220-1300 m), frequent or locally common.
Species Description - Rhizome short-creeping, 3-7 mm thick, nodose, usually pruinose, clothed with light- to darkbrown, clathrate, broadly ovate to lanceolate scales 2-4 mm long, tardily deciduous and eventually leaving older parts of rhizome naked. Fronds crowded-distichous, ascending, arching, or pendent, with or vrithout a distinct stipe. Blades narrowly to broadly linear, 15-70 cm long, 0.3-1.8 cm broad, the apex attenuate and subulatefalcate, the base long-decunent, the margins entire, narrowly cartilaginous, more or less revolute; veins forming 1-3 uneven rows of areoles, each with one or two included free veinlets; tissue rigid-coriaceous. Sori inegularly 1- or 2-(3-)seriate, each terminal on a free areolar veinlet.
Distribution and Ecology - General Distribution. Florida, Greater Antilles, Guadeloupe, and continental tropical America from Mexico to Bolivia and Brazil. Distribution in Puerto Rico. Of widely scattered occunence; recorded from Arecibo, Barranquitas, Cayey, Jayuya, Juana Diaz, Maricao, Quebradillas, Utuado, Villalba, and Yauco. To be expected in many other areas. Habitat. On trunks and branches of trees, rocky banks, and in crevices of boulders and cliflfs, at middle to high elevations (220-1300 m), frequent or locally common.
Discussion:
Type. Swartz, from Jamaica (S, photo US; isotypes Herb. Willd. 19611-2, B, photos G H, US; B M , photo U S ; Herb. Thunb. 24458, UPS).
Syn. Marginaria angustifolia (Swartz) K. Presl, Tent. pterid. 188. 1836.
Grammitis angustifolia (Swartz) Heward, Mag. Nat. Hist. n.s. 2: 458. 1838.
Cyrtophlebium angustifolium (Swartz) J. Smith ex Hooker, Companion Bot. Mag. 72: 12. 1846.
Campyloneurum angustifolium (Swartz) Fee, Mem. foug. 5: 257. 1852.
Goniophlebium angustifolium (Swartz) Brackenridge in Wilkes, Expl. Exp. 16: 33. 1854.