Anemia aspera (Fée) Bak.

Anemia aspera (Fee) Baker, Jour. I^inn. Soc. 14: 27. 1873
Aneimiaebolrys aspera F^e, Crypt. Vase. Br€s. 1 : 267. 1869.
Rhizome creeping ; stipes of the fertile fronds not equaling the sterile fronds. Fertile fronds long-stipitate, the stipe about as long as the lamina, brownish-stramineous, stoutish, sulcate along the ventral face, glabrescent, at the base somewhat rough from the persistent bases of the stiff yellowish-brown hairs ; lamina (including the spreading fertile basal pinnae) deltoid to deltoid-ovate, up to 35 cm. long and 26 cm. broad, tripinnate; pinnae 14-16 pairs, the fertile (basal) ones deltoid, 12-15 cm. long, up to 11.5 cm. broad at the base, with about 11 pairs of flat spreading deltoid -oblong pinnules, the lowermost basal ones of these about 6 cm. long and 2.2 cm. broad at the base, stalked (9 mm.), with about 9 pairs of flat deltoid-oblong mostly short-stalked segments, these bipinnatifid, minutely pilose ; spores broadly striate, scabro-verruculose, the angles produced ; sterile pinnae spreading, contiguous, petiolate from a cordate base, unequally ovatedeltoid, acuminate, the larger ones with 10 or 11 pairs of pinnules, basiscopic, the inferior basal pinnules petiolate, deltoid-lanceolate from a cordate base, about 5 cm. long and 2.5 cm. broad at the base, with about 7 pairs of ovate to ovate-oblong acute segments, the basal ones trilobate, the margins a little thickened, obscurely denticulate-sinuate ; upper pinnae narrower, oblonglanceolate, finally adnate and confluent at the acuminate apex ; leaf-tissue herbaceous, dull dark-greenish above, a little paler below, minutely and scantily glandular upon both surfaces, glabrous above, nearly so below ; veins elevated on both surfaces, slender. Sterile fronds similar but smaller, the pinnae (from description) narrower, ovate-lanceolate; pinnules of the lower pinnae (or at least of the lowermost) anadromous, of the upper ones
catadromous .
Type locality : Serra dos Orgaos au Morro Queimado, Chemin dos Macacos, Brazil. Distribution : Costa Rica or Veragua, Panama ; also in Brazil.

Anemia aspera là một loài dương xỉ trong họ Anemiaceae. Loài này được Fée Baker mô tả khoa học đầu tiên năm 1873.