Macrothelypteris torresiana (Gaudich.) Ching
Family: Thelypteridaceae
False Maiden Fern
[Dryopteris setigera (Bl.) Kuntze,  more...]
Macrothelypteris torresiana image
Joel Nitta  

Stems short-creeping, thick, to 10 mm diam. Leaves monomorphic, evergreen, 60--150 cm. Petiole to 75 cm × 3--12 mm, glaucous when living. Blade 2--3-pinnate, to ca. 85 cm. Pinnae to 35 × 10(--17) cm; pinnules sessile to adnate, oblique, 2--8 × 0.8--2.5 cm, incised almost to costule into oblique segments 2--4 mm wide, segments entire to dentate or pinnatifid; veins forked or simple. Indument abaxially of septate hairs 1--2 mm on costae and costules; rachis, costae, and blade tissue with capitate glands 0.05 mm. Sori round, indusia small, less than 0.3 mm diam., glabrous or glandular; sporangia with minute capitate glands near annulus. 2 n = 124.

Terrestrial in damp woods and along stream banks; 0--100 m; introduced; Ala., Ark., Fla., Ga., La., Miss., S.C., Tex.; s Mexico; West Indies in the Antilles; Central America; South America to n Argentina; native to tropical and subtropical Asia, Africa.

The name Dryopteris setigera (Blume) Kuntze has been misapplied to plants in the flora.

Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta  
Macrothelypteris torresiana image
Joel Nitta