Adiantopsis seemannii (Hook.) Maxon
Descripción
Rhizomes short, stout, ascending; rhizome scales 5 X 0.5–0.8 mm, each bicolorous with black center and brown margins, varying to dark brown, hair-like scales 1 mm long; fronds to 65 cm tall, clumped; stipes 1⁄3–1⁄2 of the frond length, atropurpureous, lustrous, glabrous, terete; blades bipinnate-pinnatifid to tripinnate, pinnately arranged, deltate, rachises terete to shallowly grooved, glabrous, the costae grooved adaxially, with brown wings; adaxial surfaces glabrous, papillate with dark vein ends; abaxial surfaces with sparse, clavate, white hairs less than 0.1 mm long; veins visible; sori ca. 0.5 mm long; indusia pale with white cells on outer surfaces, thin, broken into flaps, 0.5–0.8 X 0.3–0.5 mm; spores tan.A
Forma de vida
TerrestreA
Ejemplar revisado
Gro (Lorea 2574, FCME, 4012, FCME, IEB). Jal (Alava 1676, UC; McVaugh 19978, IEB, MEXU, NY). Nay (Castillo C. 6075, XAL). Oax (Mickel 5214, NY; Rivera H. 1732, NY). Sin (Breedlove 43808, CAS; González Ortega 6026, MEXU; Vega 3815, UC).A
Elevación
100 – 1400 mA
Tipo de vegetación
Selva altaA
Categoría IUCN
No incluidaA
Categoría NOM-059-SEMARNAT-2010
No incluidaB
Discusión taxonómica
These specimens were previously treated as A. chlorophylla (Sw.) Fée (Mickel & Beitel, 1988; Mickel 1992), but apparently that species is limited to southern Brazil, Paraguay, and Bolivia. Typically, A. chlorophylla has castaneous to black-centered rhizome scales, castaneous frond axes, and sori 2–3 mm long along the segment margins, as opposed to A. seemannii which has rhizome scales entirely black (or nearly so), frond axes black, and sori only 1mm long. Andean material identified as A. chlorophylla may be distinct from both A. seemannii and A. chlorophylla.A