Long-leaved Pyrrosia

Names and Synonyms

Common Names

• Long-leaved Pyrrosia
• Long-leved Felt Fern

Scientific Names

Accepted name

Synonyms

• Acrostichum bicolor
• Candollea longifolia
• Cyclophorus cinnamomeus
• Cyclophorus induratus
• Cyclophorus longifolius
• Cyclophorus scolopendrium
• Cyclophorus valleculosus
• Niphobolus fissus
• Niphobolus longifolius
• Niphobolus puberulus
• Polypodium furfuraceum
• Polypodium macropodum
• Gyrosorium fissum
• Pyrrosia acrostichoides
• Pyrrosia macropoda
• Niphobolus acrostichoides
• Cyclophorus acrostichoides
• Cyclophorus macropodus
• Polypodium fissum
• Pyrrosia fissa
• Cyclophorus acrostichoides var. fissus
• Niphobolus scolopendrium
• Pyrrosia coccideisquamata

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Polypodiinae, it is categorized under the order Polypodiales and the family Polypodiaceae. Finally, its specific classification is defined by the genus Pyrrosia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern concentrated within East and Southeast Asia. In China, it can be found growing across the South-Central regions as well as on the island of Hainan. Its range extends further into the Indo-China peninsula, where it is documented in various habitats. Specifically, the species is native to the countries of Cambodia and Laos. Additionally, its geographical presence includes the mountainous and tropical areas of Myanmar.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pyrrosia longifolia is intrinsically tied to the high-humidity environments of the tropical rain forest, where it functions as an epiphytic organism. Within these dense, moisture-rich ecosystems, the plant thrives by anchoring itself to the bark of host trees, utilizing the vertical stratification of the forest to access varying levels of light and air circulation. The rain forest habitat provides the consistent atmospheric moisture and filtered shade necessary for its survival, allowing it to bypass the need for soil-based nutrient uptake by absorbing water and nutrients directly from the humid air and organic debris accumulating on its host. This specialized niche within the canopy ensures a stable microclimate characterized by high precipitation and protected thermal conditions, which are essential for its physiological processes and reproductive success.

Habitat :

rain forest

Morphology

The morphology of Pyrrosiia longifolia is characterized by a non-woody, herbaceous growth form that lacks structural lignification. As a self-supporting plant, it does not exhibit climbing tendencies such as liana or vine behavior, nor does it function as a facultative or obligatory climber. The species exhibits a diverse ecological adaptability regarding its habitat, ranging from aquatic and semiaquatic environments to terrestrial settings. In terms of its specialized growth strategies, it functions as an obligatory holoepiphyte, meaning it relies on other structures for support throughout its life cycle. Despite its epiphytic nature, the plant remains an independent organism, showing no parasitic relationship with its host.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

holoepiphyte

Epiphyte :

obligatory

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiology of Pyrrosiia longifolia is characterized by a metabolic framework governed by the C3 photosynthetic pathway, which dictates its carbon fixation process and water-use efficiency. In this pathway, the initial fixation of atmospheric carbon dioxide occurs via the enzyme Rubisco, resulting in the formation of a three-carbon compound, 3-phosphoglycerate, within the mesophyll cells. This specific metabolic strategy implies that the plant's physiological performance is highly sensitive to ambient temperature and light intensity, as the C3 mechanism is prone to photorespiration when stomatal conductance decreases under heat or water stress. Consequently, its gas exchange dynamics and nutrient assimilation are intrinsically linked to its ability to maintain optimal internal CO2 concentrations relative to transpirational losses.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Pyrrosia longifolia has 6 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include CATECHIN, Mangiferin, RUTIN, kaempferol, naringin.

CATECHIN

1. Research in pharmaceutical sciences

Mangiferin

1. Research in pharmaceutical sciences

RUTIN

1. Research in pharmaceutical sciences

kaempferol

1. Research in pharmaceutical sciences

naringin

1. Research in pharmaceutical sciences

quercetin

1. Research in pharmaceutical sciences

Preparations