Online ISSN : 1618-2545
Print ISSN : 1340-3540
Full paper
Lamproderma vietnamense: a new species of myxomycetes with reticulate spores from Phia Oắc - Phia Đén National Park (northern Vietnam) supported by molecular phylogeny and morphological analysis
Yuri K. Novozhilov Ilya S. PrikhodkoNadezhda A. FedorovaOleg N. ShchepinVladimir I. GmoshinskiyMartin Schnittler
ジャーナル オープンアクセス HTML

2022 年 63 巻 4 号 p. 149-155


A new species of Lamproderma (Myxomycetes), described herein as L. vietnamense, was recovered in the field on ground litter from mountain subtropical forests (Phia Oắc - Phia Đén National Park) of northern Vietnam. Morphological details were examined by light and scanning electron microscopy. The species is characterized by a distinct and unique combination of morphological features, including a bright blue, shiny and very thin membranous peridium, a small dome-shaped columella, rigid, straight, branched, brown capillitial threads which gradually become pale at the periphery and finally colorless at the tips and small-meshed, banded-reticulate spores with 9-12 meshes across the spore diameter and solid walls without perforations 0.3-0.5 µm high. The stability of the taxonomic characters of L. vietnamense is supported by two well-developed collections found in 2018 and 2019. Partial sequences of three molecular markers (SSU, EF1α, COI) for both collections are identical. A two-gene phylogeny of the first two markers displays the two known accessions as a well-separated entity and indicates affinity of the new species with L. columbinum (the type taxon of the genus), L. violaceum, and several nivicolous Lamproderma species.

© 2022, by The Mycological Society of Japan

This article is licensed under a Creative Commons
[Attribution-NonCommercial-ShareAlike 4.0 International] license.
前の記事 次の記事