Pyrrosia angustata is a type of fern belongs to the family Polypodiaceae. The genus Pyrrosia is derived from Greek word, pyrrho meaning reddish; meanwhile, the species epithet is derived from the Latin word means narrowed, which is referring to the narrowing of the lamina in the fertile fronds.
Pyrrosia angustata has long-creeping rhizomes, with around 1.5-2.6 mm thick. The fronds are dimorphic and stalked. The fertile fronds with stipes can reach up to around 25 cm long, while the sterile fronds with stipes can reach up to around 9 cm long. The sori are clearly arranged in a single row between costa and margin. The shape of the sori are elongate, which is 5 mm or longer, and slightly sunken.
The distribution of Pyrrosia angustata is ranged from Peninsular Thailand to Maluku, including Malaysia. It can be found growing in sheltered habitats on tree trunks and on canopy branches, sometimes lithophytic on granite, or terrestrial on sandy ground, and on road embankments at forest margins. Its conservation status is Least Concern in Peninsular Malaysia (Hovenkamp, 2013).
No | Part | Habit | |
---|---|---|---|
1 |
Epiphyte — Growing on another organism but not parasitic. Not growing on the ground.
|
No | Description | Suitability | Seasonality |
---|---|---|---|
1 |
Forest → Lowland Dipterocarp Forest (Malayan, Burmese)
|
Unknown | Unknown |
2 |
Forest → Upper Hill Dipterocarp Forest
Approximately 762-1219 m (2500-400 ft) above sea level in inland ranges; 609-914 m (2000-3000 ft) in isolated mountains and coastal ranges
|
Unknown | Unknown |
Year Published | Assessment | Red List Category | Version |
---|---|---|---|
2021 | Malaysia Plant Red List |
Least Concern (LC)
Peninsular Malaysia
|
3.1 |
2013 | Peninsular Malaysia Plant Red List |
Least Concern (LC)
|
N/A |
Collection Center | Dried | Live | Slide | Wet | Total | |
---|---|---|---|---|---|---|
2 | ||||||
5 |
Acknowledgements :- Ms. Aida Salihah Binti Abu Bakar, Ms. Amirah Hasanah Binti Mazlan, Mrs. Hakimah Binti Jaafar, Ms. Kamilia Huda Binti Mohd Zaini, Ms. Mira Farzana Binti Mohamad Mokhtar, Mr. Mohamad Firdaus Bin Mohamad Ridzwan, Ms. Nur Farahin Binti Mustafa, Mrs. Nur Hazwanie Binti Abd Halim, Ms. Nurfarhana Hizan Binti Hijas, Ms. Nurul Aimi Amirah Binti Mohd Zaki, Ms. Nurul Aliya Imra Asyikin Binti Abd Murad, Ms. Sara Eisya Binti Mohamed Ghozali, Ms. Siti Zubaidah Binti Abdul Latif, Mr. Tan Kok Kiat & Mr. Yasser Mohamed Arifin
Photo credit :- Imin Kamin
Species Citation :- Pyrrosia angustata. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/16217. [Retrieved 30 September 2023].
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