Studies of Vietnamese Pteridophyte Flora 1

Abstract

The history of the study on pterido-flora in Vietnam is reviewed. Two new records, Adiantum capillus-junonis and Actinostachys wagneri are reported for Vietnam based on our new collections. A new species, Hymenophyllum bryoides, is described to accommodate its morphological and genetic distinctiveness from other congeneric species. Photographs of key characters, distributions, ecology, and notes on all the above species are provided.Keywords—Fern, Indochina, new species

Studies of Vietnamese Pteridophyte Flora 2

“…The highlands provide a consistently cool and moist habitat which is probably similar to where these species were previously known. Altogether, these nine new records reinforce the review of Chen et al (2021) who show that the pterido-flora of Vietnam is currently undergoing a period of rapid increase in species numbers. On the other hand, it also reminds us that considerable work remains to be done in order to have a proper understanding of ferns in Vietnam.…”

“…This is the second paper of the series that deals with the pterido-flora of Vietnam (Chen et al 2021). Firstly, we report nine new national records for Vietnam after studying the type materials, herbarium specimens, and relevant references (Figs.…”

Hymenophyllum chamaecyparicola (Hymenophyllaceae), a new filmy fern species from Taiwan

“…In total, 49 sequences were used for analyses, including 23 newly generated ones from 13 samples and those used in Hsu et al (2019) and Chen et al (2021). These sequences were first aligned using MUSCLE (Edgar 2004) implemented in AliView (Larsson 2014), and the resulting alignments of the two cpDNA regions were then concatenated.…”

Langbiangia, a new genus of Gesneriaceae endemic to Langbiang Plateau, southern Vietnam and a taxonomic endeavor to achieve key targets of the post-2020 global biodiversity framework

“…(Rafflesiaceae) in Vietnam [ 28 ]. Langbiang Plateau is also known as the prime habitats of numerous vascular plant species and in the recent decade, a wide range of vascular plant taxa have also been described and/or recorded, including 16 ferns [ 29 – 32 ], one Schisandraceae [ 33 ], three Lauraceae [ 33 , 34 ], five orchids [ 35 , 36 ], one bamboo [ 37 ], one Zingiberaceae [ 33 ], one legume [ 38 ], one aroid [ 39 ], one Menispermaceae [ 40 ], one Daphniphyllaceae [ 33 ], four stone oaks [ 41 , 42 ], one Euphorbiaceae [ 43 ], two Rosaceae [ 33 ], two begonias [ 44 ], one Clusiaceae [ 45 ], one Rutaceae [ 33 ], seven camellias [ 46 – 50 ], four Nyssaceae [ 33 , 51 ], one ginseng [ 52 ], one Loranthaceae [ 53 ], two hollies [ 33 ], one Icacinaceae [ 33 ], one Symplocaceae [ 33 ], one Rubiaceae [ 54 ], and five gesneriads [ 55 – 58 ]. However, the rich and unique biological diversity of the Langbiang Plateau has continuously been threatened by growing land demands for agriculture ( Fig 1 ) and residency [ 59 ].…”