Collection Data (M. Sundue 3866)
Classification & Common Names
- Class: Polypodiopsida
- Family: Pteridaceae
- Genus: Jamesonia Hook. & Grev.
- Species: Jamesonia hirta (Kunth) Christenh.
- Common name(s):
General Collection Data
- Date: 31-XII-2014
- Primary Collector & #: M. Sundue 3866
- Collection Party: M. Sundue - W. Testo - D. Barrington - N. Patel
- Det. History: M. Sundue
- Habitat: Montane forest
- Habit: Terrestrial
- Specimen Locations: VT
- Location: Volcán Barva – – – Heredia – Costa Rica.
- Coordinates: 10°8′6″N, 84°6′0″W
- Elevation: 2000 m
Amazing fern! This species is different from other Jamesonia according to my memory, And the indument and sori look very like an Asian fern Pleurosoriopsis makinoi.
Yes, nearly with the same Sori! but the Pleurosoriopsis makinoi belong to Polypodiaceae now, and distributed in east Asia. Anyway, it’s wonderful of this two ferns! haha….
Ran Wei –
Yes, this is quite different from Jamesonia in the old sense, which are extremely reduced alpine taxa. This species was previously treated in Eriosorus, but phylogenetic analyses (Sanchez-Baracaldo, 2004) demonstrated that the former genus was polyphyletic and nested in the latter. It represents a rather remarkable case of convergent evolution toward an alpine morphotype. Because Jamesonia is the older name, the species of Eriosorus were transferred to Jamesonia by Christenhusz et al. (2011).