Anogramma Link
Descripción
Terrestrial, or less commonly epipetric; rhizomes erect, sparsely scaly to hairy; fronds small, clumped; stipes slender, green to stramineous; blades 2–4-times pinnate, glabrous (except at bases); veins free; sporangia along the veins on ultimate and penultimate terminal segments; indusia and paraphyses absent; spores tetrahedral-globose, with equatorial ridges tan to dark brown; gametophytes said to be perennial, at least in A. leptophylla, with annual sporophytes; x = 29.A
Forma de vida
TerrestreA
Distribución
México (Country) native and not endemicB
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
There are perhaps seven species in the genus, but their taxonomy is still not entirely resolved. The type species, A. leptophylla, is subcosmopolitan, being widespread in Latin America, Africa, southern Europe, and southern Asia, but the others are rather restricted in range. Five are found in America and one is African; one on Ascension Island is extinct. The boundaries between A. leptophylla, A. guatemalensis, and A. chaerophylla are obscure. It is curious that the rare A. chaerophylla grows with A. leptophylla in Chiapas (Smith, 1981) and the only collection of A. chaerophylla in Oaxaca is mixed collection with A. leptophylla. Further study is needed on the intraspecific and intrapopulational variation. Anogramma is closely related to Pityrogramma and more distantly to Eriosorus (Tryon & Tryon, 1982), and differs from both relatives in size, texture, and lack of farina.A