(Polypodiales, Polypodiaceae), a new species from Shan State of Myanmar.

A new species of the species-rich fern genus (Polypodiales, Polypodiaceae) has been found to occur in Shan state, Myanmar. is described based on morphological characters and phylogenetic evidence. Phylogenetic analyses showed that the specimens of formed a distinct clade nested in the clade.

 (Polypodiaceae), a new fern species from Myanmar.

The genus is a small, phylogenetically isolated genus belonging to the fern family Polypodiaceae. This study describes a new species, , based on collections obtained during field surveys of Shan State, Myanmar. This new species is distinct from other species of in its small size and presence of sclerenchyma strands in the rhizome.

Plastid genome evolution of a monophyletic group in the subtribe Lauriineae (Laureae, Lauraceae).

, a non-monophyletic group of the tribe Laureae (Lauraceae), plays important roles in the tropical and subtropical forests of Asia, Australia, Central and North America, and the islands of the Pacific. However, intergeneric relationships between and , , and of the tribe Laureae remain unresolved. In this study, we present phylogenetic analyses of seven newly sequenced plastomes, together with 47 Laureae plastomes obtained from public databases, representing six genera of the Laureae.

Data on pteridophyte species diversity and status of the International Union for Conservation of Nature in each political unit of Myanmar.

The data in this article provide information about the species richness of each political unit in Myanmar and their preliminary conservation status. The dataset was compiled by gathering scattered data from different sources. The majority of the data were compiled from the authors' collections and historical and recent floristic treatments.

Correction to: Towards the conservation of the Mesozoic relict fern Christensenia: a fern species with extremely small populations in China.

In the original publication of the article, one of the author names, "Tao Fuijwara" was published incorrectly. The correct name is Tao Fujiwara.

Towards the conservation of the Mesozoic relict fern Christensenia: a fern species with extremely small populations in China.

The Chinese occurrences of the marattioid fern genus Christensenia have been considered as requiring protection because of its extreme rarity and very small population size. Here, we explored different biological aspects to enable protection of these rare ferns, well known as Mesozoic living fossils. Firstly, we documented the cytology of the Chinese occurrences for the first time.

Selliguea kachinensis (Polypodiaceae), a new fern species of uncertain affinity from Northern Myanmar.

We describe Selliguea kachinensis as a new species from Northern Myanmar and discuss its generic placement in either Selliguea or Arthromeris. The conservation status is assessed as Data Deficient. In addition, we make the new combination Selliguea erythrocarpa (Mett.