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Fern species richness and abundance are indicators of climate change on high-elevation islands: evidence from an elevational gradient on Tahiti (French Polynesia)

Inherent characteristics of island species make them particularly susceptible to anthropogenic changes and need to be assessed to implement appropriate conservation strategies. The impacts of climate change are increasingly being investigated along …

Antrophyum solomonense (Pteridaceae), a New Species from the Solomon Islands, and its Systematic Position Based on Phylogenetic Analysis

A vittarioid fern from the Solomon Islands, which has long been treated as *Antrophyum semicostatum*, is described here as a new species, *Antrophyum solomonense* . A description, illustration, and distribution of the new species are presented. …

A survey of the fern gametophyte flora of Japan: Frequent independent occurrences of noncordiform gametophytes

__*Premise of the Study.*__ Ferns and lycophytes are the only extant land plants with two free-living generations (sporophytes and gametophytes); hence, a single species may have two different distributions. The distribution of the gametophytes of …

Reticulate evolution in the Crepidomanes minutum species complex (Hymenophyllaceae)

__*Premise of the Study.*__: Hybridization is an important mechanism of speciation in plants and often results in complexes that comprise multiple sexual diploids and their hybrid offspring. However, the intricacy of these systems has prevented a …

Pteridophytes of Mo'orea, French Polynesia: additional new records

The ferns and lycophytes of Mo'orea, French Polynesia were surveyed as part of the Mo'orea Biocode Project during September 12–13, 2006, September 6–27, 2008, and August 11–28, 2010, resulting in collection of 42 species that had not been previously …

Molecular species identification with rich floristic sampling: DNA barcoding the pteridophyte flora of Japan

__*Background.*__ DNA barcoding is expected to be an effective identification tool for organisms with heteromorphic generations such as pteridophytes, which possess a morphologically simple gametophyte generation. Although a reference data set …

The Hymenophyllaceae of the Pacific area. 2. Hymenophyllum (excluding subgen. Hymenophyllum)

Pacific species of *Hymenophyllum* subgen. *Sphaerocionium*, *Mecodium*, *Globosa*, *Pleuromanes*, *Myrmecostylum*, *Fuciformia*, *Diploöphyllum* and *Cardiomanes* are enumerated. In total, 37 species are recorded in the studied area, and synonymies, …

Hemi-epiphytism in Vandenboschia collariata (Hymenophyllaceae)

Hemi-epiphytism represents an evolutionarily important yet poorly understood growth habit in ferns. Anatomy and ontogeny related to hemi-epiphytism in the fern *Vandenboschia collariata* (Hymenophyllaceae) were investigated at La Selva Biological …

New Records of Polyphlebium borbonicum, an African Filmy Fern, in the New World and Polynesia

*Polyphlebium borbonicum* is newly recorded in Central and South America and Easternmost Polynesia (Marquesas and Society Islands). It has been misidentified as *P. diaphanum* and as *P. endlicherianum* in the New World and in the Pacific, …

Exploring the utility of three plastid loci for biocoding the filmy ferns (Hymenophyllaceae) of Moorea

The Moorea Biocode seeks to compile an integrative taxonomy based on morphological, ecological, and molecular data for the entire macrobiota of the island of Moorea, French Polynesia. As a case study exploring the utility of selected molecular data …