Ctenitis microchlaena (Fée) Stolze
Descripción
Rhizomes suberect to erect, stout, caudices to 4 cm; fronds 70–100 cm long; stipes stramineous to brownish, ca. 1⁄3 the frond length, to 30(–40) X 5 mm, bases with a dense mat of orangebrown, non-clathrate, hair-like scales 10–20 X 0.5–1 mm; blades green, pinnate-pinnatifid, ovate-lanceolate, 50–70 X 15–20 cm; rachises abaxially with scattered brown, non-clathrate scales mostly 1–2 mm long, also with dense jointed hairs 0.2–0.5 mm; pinnae 22–33 pairs, the proximal ones stalked 1–3 mm, 7–12(–16) X 1.5–2.5 cm, broadest at the bases, deeply incised to about 1–2 mm from costae; segments entire or faintly toothed near the rounded tips, not or only slightly falcate, margins eciliate; veins simple, 6–10 pairs per segment, ending at the margins above the sinuses; indument on costae abaxially of scattered, tan to reddish, flat to twisted, lanceolate scales, also of short glandular hairs 0.1–0.2 mm long; lamina between veins glabrescent or with spreading to appressed glandular hairs abaxially, margins ciliate with jointed hairs 0.1–0.3 mm long; sori medial to supramedial, indusiate, the indusia thin, tan, glabrous or minutely hairy.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 27456, 32934, DS, MEXU, NY, 33083, DS, 38041, DS, MEXU, 49045, CAS, ENCB; Palacios-Rios 2904, UC). Ver (Ventura A. 5423, CHAPA, ENCB, MEXU, NY).
A
A
Elevación
1000 – 1500 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This is most similar to C. submarginalis, differing from that in the rather large, persistent indusia and the non-apiculate segments that are rounded at the tips.
A collection from the Eastern Highlands of Chiapas (Breedlove 33084, DS), Mpio. Ocosingo, 800 m, appears intermediate between this species and possibly C. interjecta or C. equestris. It has large indusia, bipinnate fronds at the blade bases, and pinnules adnate nearly their width (or more) with crenate to dentate margins. The sporangia appear to be abortive, and it seems likely that the specimen represents a hybrid in the C. submarginalissloanei group, between a pinnate-pinnatifid species and a more dissected species.
A
A collection from the Eastern Highlands of Chiapas (Breedlove 33084, DS), Mpio. Ocosingo, 800 m, appears intermediate between this species and possibly C. interjecta or C. equestris. It has large indusia, bipinnate fronds at the blade bases, and pinnules adnate nearly their width (or more) with crenate to dentate margins. The sporangia appear to be abortive, and it seems likely that the specimen represents a hybrid in the C. submarginalissloanei group, between a pinnate-pinnatifid species and a more dissected species.
A