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Pseudolycopodiella subinundata

Pseudolycopodiella subinundata

Japan
Status
Not Evaluated

IUCN conservation assessment category

Habitat
damp forest floors, humid rock crevices, and shaded understory environments

Primary ecological niche & biome

Diet
low-light autotrophic photosynthesis, spore-based propagation absorption

Dietary type and primary food source

Activity
seasonal spore maturation, year-round damp-loving frond respiration

Diurnal, nocturnal, or active patterns

Scientific Summary

GBIF Taxonomic Backbone & Wikipedia Registry Profile

Lycopodium subinundatum was consistently treated as a synonym of Pseudolycopodiella caroliniana (Linnaeus 1753: 1101) Holub (1983: 442) (e. g., Ching 1982, Zhang & Kung 2000, Zhang 2004, Zhang & Iwatsuki 2013, Ebihara 2016). Based on our earlier molecular study, these two taxa were resolved as paraphyletic in relation to the Central and South American P. meridionalis (Underwood & Lloyd 1906: 121) Holub (1983: 442) (Chen et al. 2022). Lycopodium subinundatum and Pseudolycopodiella caroliniana are distributed in Asia and North America, respectively, and should be treated as different species. The former occurs in China, India, Japan, Malaysia, New Guinea, and Sri Lanka (Zhang & Kung 2000, Zhang 2004, Zhang & Iwatsuki 2013). In our earlier molecular work, we included only Japanese material of Pseudolycopodiella subinundata (Chen et al. 2022) which is assumed to be conspecific with the material from other parts of Asia. However, no molecular data from other parts of Asia are available. It is unknown whether the African material is assignable to the Asian species since no molecular data is available either. Pseudolycopodiella subinundata differs from P. caroliniana by having linear to linear-lanceolate dorsal leaves on the rhizome (vs. lanceolate dorsal leaves on the rhizome in the latter). In addition, the former has 2 n = 68 (Takamiya & Kurita 1983), whereas the latter has 2 n = 70, 140 (Wagner & Beitel 1993).
Biology & Conservation

Ecologically, the conservation status of Pseudolycopodiella subinundata is officially designated as Not Evaluated. Current field registries estimate a global population composed of an unquantified number of individuals, making habitat preservation critical to maintaining their wild populations.

It is typically endemic to damp forest floors, humid rock crevices, and shaded understory environments, showing great physiological synergy with its surroundings. In terms of dietary preferences, it relies primarily on a diet of low-light autotrophic photosynthesis, spore-based propagation absorption. It exhibits specialized adaptations centered around a seasonal spore maturation, year-round damp-loving frond respiration activity pattern, optimizing its energy conservation and interactions within its native ecosystem. The species has a typical natural lifespan of approximately 25 years, allowing it to adapt and mature through structured generational cycles.

Ongoing biological monitoring and ecological advocacy emphasize the importance of protecting this species. The stability of its food chain and the prevention of fragmentation in its primary range are vital for the continued survival of Pseudolycopodiella subinundata.

Energy & Activity Profile
Habitat & Adaptation Index
Quick Facts
Native RangeJapan
Habitat Rangedamp forest floors, humid rock crevices, and shaded understory environments
Lifespan25 Yrs
StatusData Deficient
ScientificPseudolycopodiella subinundata
Registry Info
Lifespan25 years
KingdomPlantae
FamilyLycopodiaceae