Mildella

Mildella is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae.^[1] Species are native to Mexico, Central America and the Caribbean.^[2]

Mildella
Mildella fallax
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Family:	Pteridaceae
Subfamily:	Cheilanthoideae
Genus:	Mildella Trevis.[1]
Species
See text.

Species

The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven species in the genus, although recognizing that the genus was then not monophyletic, since the New and Old World species belonged in different clades.^[1] As of December 2019^[update], the Checklist of Ferns and Lycophytes of the World placed only two New World species in the genus:^[2]

• Mildella fallax (M.Martens & Galeotti) G.L.Nesom
• Mildella intramarginalis (Kaulf. ex Link) Trevis.

The Checklist of Ferns and Lycophytes of the World placed former Mildella species in the genus Oeosporangium:

• Mildella henryi (Christ) C.C.Hall & Lellinger = Oeosporangium nitidulum
• Mildella mairei (Brause) C.C.Hall & Lellinger = Oeosporangium mairei
• Mildella nitidula (Wall. ex Hook.) C.C. Hall & Lellinger = Oeosporangium nitidulum
• Mildella paupercula (Christ) C.C.Hall & Lellinger = Oeosporangium pauperculum
• Mildella smithii (C.Chr.) C.C.Hall & Lellinger = Oeosporangium smithii
• Mildella straminea (Ching) C.C.Hall & Lellinger = Oeosporangium stramineum

References

1. PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi:10.1111/jse.12229, S2CID 39980610
2. Hassler, Michael & Schmitt, Bernd (November 2019), "Mildella", Checklist of Ferns and Lycophytes of the World, 8.11, retrieved 2019-12-31