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 elongate, ascending, 0.2-0.4 mm thick (excluding adherent roots and stipe bases), clothed at apex with brown, entire, glabrous, deltate-lanceolate scales 3-4 mm long. Fronds short-stipitate, 2-10 cm long. Blades linear, with dimorphic sterile and fertile portions, mostly 0.5-1.5 mm broad (rarely to 3 mm), the sterile basal portion sharply sermlate, the teeth acute and long-decunent; fertile apical portion often curved-falcate, 0.5-5 cm long, 1-2 mm broad, nearly flat to concave or folded, with simple veins and sinuate margins. Sori originating from separate loci along the vein-tips, becoming confluent from quite early in their development.
Species Description - Rhizome elongate, ascending, 0.2-0.4 mm thick (excluding adherent roots and stipe bases), clothed at apex with brown, entire, glabrous, deltate-lanceolate scales 3-4 mm long. Fronds short-stipitate, 2-10 cm long. Blades linear, with dimorphic sterile and fertile portions, mostly 0.5-1.5 mm broad (rarely to 3 mm), the sterile basal portion sharply sermlate, the teeth acute and long-decunent; fertile apical portion often curved-falcate, 0.5-5 cm long, 1-2 mm broad, nearly flat to concave or folded, with simple veins and sinuate margins. Sori originating from separate loci along the vein-tips, becoming confluent from quite early in their development.
Discussion:
Basionym. Acrostichum serrulatum Swartz, Prodr. 128. 1788.
Type. Swartz, from Jamaica (S; isotypes S B T ; US; Herb. Willd. 19589-1, 19589-3, B, photos GH, US).
Syn. Gymnopteris serrulata (Swartz) Bemhardi, Neues L Bot. 2(2): 48. 1805.Asplenium serrulatum (Swartz) Swartz, Fl. Ind. occid. 3: 1607. 1806.
Xiphopteris serrulata (Swartz) Kaulfuss, Enum. filic, 85, 1824; Wesen Farrenkr. 87. 1827.
Micropteris serrulata (Swartz) Desvaux, Mem. Soc. Linn. Paris 6: 217. 1827.
Polypodium serrulatum (Swartz) Mettenius, Fil. hort. bot. Lips. 30. 1856, not Swartz, 1802.
Polypodium duale Maxon, Contr. U.S. Natl. Herb. 16:61. 1912.
Cochlidium serrulatum (Swartz) Bishop, Amer. Fern L 68: 80, 1978.
Distribution:
West Indies| Africa|
West Indies| Africa|