Cochlidium rostratum Maxon ex C.Chr.
Descripción
Differs from C. linearifolium in the absence of hydathodes (as viewed at 30 times magnification) and in the larger sporangia (according to Bishop, nearly twice the size of those of C. linearifolium); spores more than 43 µm diam.; 2n=66 (CR).A
Forma de vida
EpífitaA
Ejemplar revisado
Chis (Breedlove 32226, DS, LL, MEXU, 35108, DS, 38888, DS, MEXU, 53296, CAS).A
Elevación
1300 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cochlidium rostratum is generally distinguished from C. linearifolium by the larger spores and absence of hydathodes (see Bishop, 1978). All specimens identified as this species from Oaxaca (Mickel & Beitel, 1988) and Veracruz (Palacios Rios, 1992) have hydathodes, and so are referrable to C. linearifolium. Specimens from Chiapas cited by Smith (1981) are mostly C. linearifolium, except those from the vicinity of Lagunas de Monte Bello and Laguna Tsiskaw, near the Guatemala border, where C. rostratum appears to be more common (all four collections cited above); however, one collection of C. linearifolium (Breedlove 36965, DS) also occurs here. Further work, especially including cytological studies, is needed to clarify the reputed differences between these two species. If they prove to be conspecific, C. linearifolium is the correct name.A