Trichomanes reniforme

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Trichomanes reniforme
• Cardiomanes reniforme

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. It falls under the subclass Polypodiinae and the order Hymenophyllales, specifically within the family Hymenophyllaceae. Finally, it is categorized under the genus Hymenophyllum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical range across several regions of New Zealand. It can be found growing in the North Island of the country. Additionally, its distribution extends to the South Island. The species also inhabits the Chatham Islands, marking a broader reach within the archipelago. Collectively, these locations define the known natural habitat for Hymenophyllum nephrophyllum.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Morphology

The morphology of Hymenophyllum nephrophyllum is characterized by its delicate, herbaceous structure, being distinctly non-woody in its growth habit. As a member of the Hymenochaetaceae family, this plant typically exhibits a slender, creeping, or erect rhizome that facilitates its growth in moist, shaded environments. The fronds are generally thin and membranous, often displaying a translucent quality that highlights their intricate venation patterns. The lamina is typically divided into multiple segments or pinnules, frequently presenting a kidney-shaped or reniform appearance, which is reflected in its specific epithet. The reproductive structures consist of specialized sporangia that are often borne on distinct stalks or within specialized marginal structures, characteristic of the genus, ensuring efficient spore dispersal within its humid microhabitat.

Woodiness :

non-woody

Physiology

The physiology of Hymenophyllum nephrophyllum is characterized by a specialized metabolic framework adapted to its niche as a shade-loving fern. Most notably, its photosynthetic pathway is classified as C3, a mechanism where carbon dioxide is fixed directly into a three-carbon compound during the Calvin cycle. This C3 pathway is typical for plants inhabiting moist, low-light environments, as it allows for efficient carbon assimilation under stable, humid conditions where the energetic costs of specialized pathways like C4 or CAM are unnecessary. The physiological efficiency of this plant is heavily dependent on its ability to optimize light harvesting in shaded understories, managing gas exchange and water loss through a delicate balance of stomatal regulation and enzymatic activity within the mesophyll cells.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Hymenophyllum nephrophyllum has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 6'-O-Acetylmangiferin, Mangiferin.

6'-O-Acetylmangiferin

1. Chemical & pharmaceutical bulletin

Mangiferin

1. Chemical & pharmaceutical bulletin

Preparations

Hymenophyllum nephrophyllum has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include fronds.

Fronds

1. Chemical & pharmaceutical bulletin