Mickelia pergamentacea (Maxon) R.C.Moran, Labiak & Sundue
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Authority
Moran, Robbin C., et al. 2010. Synopsis of
, a newly recognized genus of bolbitidoid ferns (Dryopteridaceae). Brittonia. 62 (4): 337-356. -
Family
Dryopteridaceae
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Scientific Name
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Discussion
Mickelia pergamentacea resembles M. hemiotis and M. nicotianifolia. It differs from the former by lack of buds at the base of the pinnae; otherwise, the two species are nearly identical in pinna shape and venation. From the latter species it differs by relatively broader terminal segments and pinnae, and the laminae tending to dry a lighter color. Also, the lateral pinnae tend to be broadest at or below the middle and slightly wider on the basiscopic side. In Puerto Rico, Mickelia pergamentacea often forms extensive colonies by means of creeping rhizomes that frequently branch. The rhizomes are generally 2-3 cm under the soil surface (Sundue, pers. obs.). In Jamaica, Walker (1966) found Mickelia pergamentacea to be diploid (2n=42).