Meniscium reticulatum (L.) Sw.
Descripción
Rhizomes short- to long-creeping; fronds to 200 cm long or more, somewhat dimorphic, the fertile ones with longer stipes; blades 50–120 X 20–60 cm, occasionally with buds borne in the axils of proximal pinnae; pinnae to 20+ pairs, widest at or near bases, to ca. 30 X 2–5 cm, at the bases unequally rounded or broadly cuneate, the margins entire, wavy, or slightly crenate; lateral veins straight to usually arcuate or subsigmoid, with 12 or more pairs anastomosing and giving rise to excurrent veinlets, the areoles shorter than broad; indument abaxially of sparse hairs on costae, costules, and sometimes veins, the hairs mostly 0.3 mm long or less; sori arcuate along veins at the anastomoses; sporangia glabrous; 2n=144 (Jam, PR).A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris reticulata) Chis (Martínez S. 7675, MEXU, MO, UAMIZ, 10079, 11111, MEXU, 17915, MEXU, UAMIZ; Vásquez & Avendeño R. 1637, XAL). Oax (Hernández G. 385, CAS, CHAPA, MEXU, NY; Mexia 9202, ARIZ, F, GH, MICH, NY, U, UC, US; Solano C. 315, TEX, UAMIZ). QR (Castillo R. 218, XAL; Torres 21, MEXU, UAMIZ).A
Elevación
150 – 300(– 800) mA
Ecología y Hábitat
In wet woods, especially near streams.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to synonym) Thelypteris reticulata differs from T. serrata by the usually entire or slightly crenate pinnae. From T. falcata it differs by the areoles being shorter than wide and the curving (sigmoid) secondary (cross) veins. Several collections cited (e.g., Mexia 9202, Solano C. 315) are atypical of the species. They have narrower pinnae and vary toward large forms of T. angustifolia (Willd.) Proctor. However, that species generally has still narrower pinnae that are more narrowly cuneate at the bases.A