Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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Leucoagaricus houaynhangensis (Agaricaceae), A New Yellowish-green Species from Lao People’s Democratic Republic

Phongeun Sysouphanthong*, Somsanith Bouamanivong, Thaviphone Salichanh, Nakhonekham Xaybouangeun, Phuping Sucharitakul, Maslin Osathanunkul and Chatmongkon Suwannapoom
* Author for corresponding; e-mail address: laofungi@gmail.com
Volume: Vol.45 No.3 (May 2018)
Research Article
DOI:
Received: 6 October 2016, Revised: -, Accepted: 7 September 2017, Published: -

Citation: Sysouphanthong P., Bouamanivong S., Salichanh T., Xaybouangeun N., Sucharitakul P., Osathanunkul M., et al., Leucoagaricus houaynhangensis (Agaricaceae), A New Yellowish-green Species from Lao People’s Democratic Republic, Chiang Mai Journal of Science, 2018; 45(3): 1287-1295.

Abstract

Leucoagaricus houaynhangensis, a yellowish-green agaric species, is described as a new species from Laos. It is characterised by light yellow to yellowish-green basidioma, covered with dark to dark grayish-brown squamules on pileus, free lamellae, subcylindrical and smooth stipe, membranous and fragile annulus, oblong ovoid and hyaline basidiospore with a germ pore, clavate and 4-spored basidia, clavate to utriform cheilocystidia with slightly a long apical appendage, a hymeniderm pileus covering made up of cylindrical elements, a cutis stipe covering made up of cylindrical elements and absence of clamp-connections in all tissue. Photographs on field and illustrator line drawing of microscopic characters are given. Two known species, La. flavovirens J.F. Liang, Zhu L. Yang & J. Xu and La. viridivavus (Petch) T.K.A. Kumar & Manim., share some morphological similarities with the newly described taxon here, but they difference by both morphological characters and nrITS DNA.

Keywords: Basidiomycota, diversity × distribution, lepiotaceous fungi, phylogeny, taxonomy

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