Pityrogramma

Pityrogramma
Pityrogramma sulphurea
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Family:	Pteridaceae
Subfamily:	Pteridoideae
Genus:	Pityrogramma Link[1]
Type species
Pityrogramma chrysophylla (Swartz) Link
Species
See text.
Synonyms
Calomelanos (Presl 1836) Lindl. Ceropteris Link Neurogramma Link ×Pityromeria Gómez Trismeria Fée 1852

Pityrogramma, the silverback ferns, or goldback ferns,^{[citation needed]} is a fern genus in the subfamily Pteridoideae of the family Pteridaceae.^[2]

Species

As of December 2019^[update], Plants of the World Online recognized the following species and hybrids:^[1]

Phylogeny of Pityrogramma [3][4]
section P. ebenea (von Linné) Proctor (Mountain silverback fern) P. austroamericana Domin P. sulphurea (Swartz) Maxon (Jamaican goldback fern) Cerogramme section P. trifoliata (von Linné) Tryon (Goldenrod Fern, threeleaf goldback fern) P. calomelanos (von Linné) Link (Dixie silverback fern) P. ochracea (Presl) Domin Calomelanos

Other species:

• P. aurantiaca (Hieron.) C.Chr.
• P. chrysoconia Maxon ex Domin
• P. chrysophylla Link (Island goldback fern)
• P. dealbata (C.Presl) Domin
• P. dukei Lellinger
• P. eggersii Maxon
• P. elongata (C.Chr.) Pic.Serm.
• P. euchrysa (Ekman ex Christensen) Ekman ex Testo
• P. ferruginea (Kunze) Maxon
• P. ×herzogii (Rosenst.) L.D.Gómez
• P. hirsuta Testo
• P. humbertii C.Chr.
• P. jamesonii (Baker) Domin
• P. lehmannii (Hieron.) R.M.Tryon
• P. ×mckenneyi W.H.Wagner
• P. opalescens Sundue
• P. pearcei Domin
• P. pulchella Domin
• P. rupicola Pic.Serm.
• P. schizophylla (Baker) Maxon
• P. triangulata Maxon
• P. ×watkinsii Testo
• P. williamsii Proctor

Gold fern (P. austroamericana)

Silver fern (P. calomelanos)

References

1. "Pityrogramma Link", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-12-28
2. 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
3. Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13: 909768. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
4. "Tree viewer: interactive visualization of FTOL". FTOL v1.4.0 [GenBank release 253]. 2023. Retrieved 8 March 2023.

• eFloras entry