Pteris mickelii Kottaim.
Descripción
Rhizomes short-creeping to erect, compact; rhizome scales 1–2 X 0.8 mm, strongly bicolorous, each with a black central streak, heavily sclerotic, margins brown, crisped, erose; fronds 40–90 cm long, clumped; stipes ca. 1⁄2 the frond length, stramineous, glabrous, about as long as the blades; blades pinnate-pinnatifid above the base, the basal pair of pinnae pinnate-pinnatifid; pinnae petiolulate 3–7 mm to sessile, cut 3⁄4 to the costae, lobes falcate, bases cuneate, narrowly decurrent (on acroscopic side), with short, jointed hairs on petiolules, margins entire, sterile tips serrulate, apices with long, undivided portion, adaxial surfaces glabrous, abaxial surfaces glabrous with flaccid or appressed, scattered hairs 0.5–0.8 mm long on veins; rachis awns 1 mm long with several teeth, absent on rachis at basal pinna; pinna awns 0.8–1 mm long; venation netted with one long areole between adjacent costules; indusia 0.3 mm wide, margins erose-fimbriate with scattered, short, jointed hairs on indusial surfaces; sporangia mixed with paraphyses 0.3 mm long; spores brown.A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Pteris erosa) Gro (Rzedowski 18631, ENCB). Jal (McVaugh 23376, ENCB, MEXU, MICH; McVaugh & Koelz 1255, MEXU, MICH). Méx (Hinton 6049, NY, US; Moreno 161, ENCB, IEB). Mor (Lyonnet 550800005, MEXU). Nay (González & Velázquez 861, MEXU, UAN; McVaugh 18982, MEXU). Oax (Campos 1205, MEXU; Mickel 6142, NY, UC).
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Magaña, 1992, but not verified).A
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Magaña, 1992, but not verified).A
Elevación
900 – 1800(– 2300) mA
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pteris Erosa (synonym) differs from P. podophylla and P. orizabae by the characters in the key and from P. propinqua J. Agardh in lacking the decurrent pinna bases and having fimbriate indusial margins.A
The original description of Pteris Erosa by Lesquereux contains a comparison with two other Pteris species (P. longifolia Linnaeus, P. pennaeformis Heer). It is valid without the designation of a type or reference to any specific specimen because this provision applies only to names published from 1958 (Art.40.1 of ICN, Turland et al. 2018). The diagnosis is also written in English, not Latin, but this has been acceptable for fossil taxa even prior to 1996 (Art.43.1 of ICN, Turland et al. 2018).
D
The original description of Pteris Erosa by Lesquereux contains a comparison with two other Pteris species (P. longifolia Linnaeus, P. pennaeformis Heer). It is valid without the designation of a type or reference to any specific specimen because this provision applies only to names published from 1958 (Art.40.1 of ICN, Turland et al. 2018). The diagnosis is also written in English, not Latin, but this has been acceptable for fossil taxa even prior to 1996 (Art.43.1 of ICN, Turland et al. 2018).
D