Cyathea holdridgeana, synonym Cyathea albomarginata, is a species of tree fern native to Panamá and Costa Rica.[1] It grows in wet forests at elevations of 2400–2800 m, considerably higher than most other tree ferns of Central America.

Cyathea holdridgeana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Cyathea
Species:
C. holdridgeana
Binomial name
Cyathea holdridgeana
Nisman & L.D.Gómez[1]
Synonyms[1]
  • Cyathea albomarginata R.C.Moran

Cyathea holdridgeana is a small tree with a trunk up to 50 cm tall. Petiole purplish-brown with white margins, scaly but not spiny; scales (= modified appendages attached to the margins of the petioles) bicolored, dark purple in the center but white along the margins; dead scales appearing totally white. Leaves bipinnate; pinnulae 10–12 cm long[2][3][4][5]

References

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  1. ^ a b c Hassler, Michael (2004–2021), "Genus Cyathea J.E.Sm.", World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.3, retrieved 25 July 2021
  2. ^ Moran, R.C. (1991), "Eight new species of tree ferns (Cyathea, Cyatheaceae) from the American tropics and three new combinations", Novon, 1 (2): 88–104, retrieved 25 July 2021
  3. ^ Davidse, G., M. Sousa Sánchez & S. Knapp. 1995. Psilotaceae a Salviniaceae. 1: i–xxi, 1–470. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D. F.
  4. ^ Correa A., M.D., C. Galdames & M. Stapf. 2004. Catálogo de las Plantas Vasculares de Panamá 1–599. Smithsonian Tropical Research Institute, Panama.
  5. ^ photo of holotype of Cyathea albomarginata at Missouri Botanical Garden