Abstract
Using a combination of morphological and molecular data, the genus Micropsalliota is shown to represent a monophyletic lineage in the Agaricaceae sister to Hymenagaricus. Features that distinguish the genus from Agaricus and allied genera include usually small, gracile basidiomes with a membranous partial veil, dextrinoid basidiospores with an apically thickened endosporium and lack of a germ pore, capitate or subcapitate, conspicuous cheilocystidia, and incrusted pileipellis hyphae that turn green in ammonia solution. We provide a monographic treatment of 23 taxa of Micropsalliota from Northern Thailand, of which 13 taxa represent new distribution reports for Thailand and 10 represent new taxa, including M. allantoidea, M. bifida, M. furfuracea, M. lateritia var. vinaceipes, M. megarubescens, M. megaspora, M. pusillissima, M. rubrobrunnescens var. rubrobrunnescens, M. rubrobrunnescens var. tibiicystis, and M. suthepensis. Included in this monograph are comprehensive descriptions, illustrations of micromorphological features, photographs of basidiomes, comparisons with allied species, phylogenetic trees inferring relationships amongst Thai species based on nrITS and nrLSU sequence datasets, and a key to aid in diagnosis.































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References
Capelari M, Rosa LH, Lachance M-A (2006) Description and affinities of Agaricus martineziensis, a rare species. Fungal Divers 21:11–18
Desjardin DE, Binder M, Roekring S, Flegel T (2009) Spongiforma, a new genus of gastroid boletes from Thailand. Fungal Divers 37:1–8
Farris JS, Källersjö M, Kluge AG, Bult C (1995) Testing significance of incongruence. Cladistics 10:315–319
Guzmán-Dávalos L (1992) First record of the genus Micropsalliota (Basidiomycotina, Agaricaceae) in Mexico. Mycotaxon 43:199–205
Guzmán-Dávalos L, Heinemann P (1994) Micropsalliota subalpina nov. sp. (Agaricaceae) from Mexico. Bull Jard Bot Natl Belg 63:195–199
Heinemann P (1956) Champignons récoltés au Congo Belge par Madame M. Goossens-Fontana. II. Agaricus Fries ss. Bull Jard Bot Brux 26:1–127
Heinemann P (1976) The genus Micropsalliota. Kew Bull 31:581–583
Heinemann P (1980) Les genres Agaricus et Micropsalliota en Malaisie et en Indonésie. Bull Jard Bot Natl Belg 50:3–68
Heinemann P (1981) Hymenagaricus Heinem. gen. nov. (Agaricaceae). Bull Jard Bot Natl Belg 51:465–466
Heinemann P (1982) Quelques Psalliotes de Nouvelle Guinée (Papua New Guinea). Bull Jard Bot Natl Belg 52:405–413
Heinemann P (1983) Clé de determination de Micropsalliota (Agaricaceae) et description de deux espèces nouvelles. Bull Jard Bot Natl Belg 53:85–95
Heinemann P (1988) Novitates generis Micropsalliota (Agaricaceae). Bull Jard Bot Natl Belg 58:540–542
Heinemann P (1989) Le genre Micropsalliota en Amérique tropicale et subtropicale. Bull Jard Bot Natl Belg 59:459–466
Heinemann P (1990) Le genre Micropsalliota (Agaricaceae). Bull Soc Myc France 160:1–30
Heinemann P, Little Flower S (1983) Micropsalliota de Kerala (Inde). Bull Jard Bot Natl Belg 53:75–84
Heinemann P, Little Flower S (1984) Hymenagaricus (Agaricaceae) de Kerala (Inde) et de Sri Lanka. Bull Jard Bot Natl Belg 54:151–182
Heinemann P, Leelavathy KM (1991) The genus Micropsalliota (Agaricaceae) in Kerala State, India. Mycol Res 95:341–346
Höhnel F. von (1914) Fragments sur mykologie XVI. Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl., Abt. 1 123:49–155
Holmgren PK, Holmgren NH (1998) onwards (continuously updated). Index Herbariorum. New York Botanical Garden. http://sciweb.nybg.org/science2/IndexHerbariorum.asp
Huelsenbeck JP, Ronquist F (2001) MrBayesian: Bayesian inferance of phylogeny. Biometrics 17:754–755
Huelsenbeck JP, Ronquist F, Bollback JP (2001) Bayesian inference of phylogeny and in its impact on evolutionary biology. Science 294:2310–2314
Kerekes JF, Desjardin DE (2009) A monograph of the genera Crinipellis and Moniliophthora from Southeast Asia including a molecular phylogeny of the nrITS region. Fungal Divers 37:101–152
Kishino H, Hasegawa M (1989) Evolution of the maximum likelihood estimate of the evolutionary tree topologies from DNA sequence data, and the branching order of Hominoidea. J Mol Evol 29:170–179
Kornerup A, Wanscher JH (1978) Methuen handbook of colour, 3rd edn. Eyre Methuen, London
Largent DL (1986) How to identify mushrooms to genus I: macroscopic features. Mad River, Eureka, 166
Largent DL, Johnson D, Watling R (1977) How to identify mushrooms to genus III: microscopic features. Mad River, Eureka, p 148
Matheny PB, Curtus JM, Hofstetter V, Aime MC, Moncalvo JM, Ge ZW, Yang ZL, Slot JC, Ammirati JF, Baroni TL, Bougher NL, Lodge DJ, Kerrigan RW, Seidl MT, Aanen DK, DeNitis MD, Daiele GM, Desjardin DE, Kropp BR, Norvell LL, Parker A, Vellinga EC, Vilgalys R, Hibbett DS (2007) Major clades of Agaricales: a multilocus phylogenetic overview. Mycologia 98(6):982–995
Mitchell AD, Bresinsky A (1999) Phylogenetic relationships of Agaricus species based on ITS-2 and 28 S ribosomal DNA sequences. Mycologia 91(5):811–819
Moncalvo J-M, Lutzoni FM, Rehner SA, Johnson J, Vilgalys R (2000) Phyligenetic relationships of Agaric fungi based on nuclear large subunit ribosomal DNA sequences. Syst Biol 49:278–305
Moncalvo J-M, Vilgalys R, Redhead SA, Johnson JE, James TY, Aime MC, Hofstetter V, Verduin SJW, Larsson E, Baroni TJ, Thorn RG, Jacobsson S, Clemencon H, Miller OK Jr (2002) One hundred and seventeen clades of euagarics. Mol Phylogenet Evol 23(3):357–400
Natarajan K, Manjula B (1982) South India Agaricales-XI. Mycologia 74(1):130–137
Nylander JAA (2004) MrModeltest 2.2 Program distributed by the author. Uppsala University, Evolutionary Biology Centre
Pegler DN (1977) A preliminary agaric flora of East Africa. Kew Bull 6:1–615
Pegler DN (1983) Agaric flora of the Lesser Antilles. Kew Bull 9:1–668
Pegler DN (1986) Agaric flora of Sri Lanka. Kew Bull 12:1–519
Pegler DN, Rayner RW (1969) A contribution to the Agaric flora of Kenya. Kew Bull 23:347–412
Ronquist F, Heulsenbeck JP (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572–1574
Saccardo PA, Trotter A (1925) Basidiomycetae. Syllog Fung 23:1–1026
Singer R (1977) Interesting and new species of Basidiomycetes from Ecuador II. Nova Hedwig 29:1–98
Singer R (1986) The Agaricales in modern taxonomy. 4th ed. Koeltz Scientific Books, Koenigstein, 981p. 88pl
Singer R, Gomez LD (1982) Basidiomycetes of Costa Rica. I. Brenesia 19(20):31–47
Swofford DL (2004) PAUP*: phylogenetic analysis using Parsimony, Version 4.0b10. Sinauer, Sunderland
Thomson JD, Gibson TJ, Plewniak F, Jeanmougin F, Higgins DG (1997) The Clustal_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Res 25:4875–4882
Vellinga EC (2004) Genera in the family Agaricaceae: evidence from nrITS and nrLSU sequences. Mycol Res 108:354–377
Vellinga EC, de Kok RPJ, Bruns TD (2003) Phylogeny and taxonomy of Macrolepiota (Agaricaceae). Mycologia 95(3):442–456
Walther G, Garnica S, Weiss M (2005) The systematic relevance of conidiogenesis modes in the gilled Agaricales. Mycol Res 109(PT 5):525–544
Wannathes N, Desjardin DE, Hyde KD, Perry BA, Lumyong S (2009) A monograph of Marasmius (Basidiomycota) from Northern Thailand based on morphological and molecular (ITS sequences) data. Fungal Divers 37:209–306
Weiss M, Oberwinkler F (2001) Phylogenetic relationships in Auriculariales and related groups -hypotheses derived from nuclear ribosomal DNA sequences. Mycol Res 105:403–415
White TJ, Burns T, Lee S, Taylor J (1990) Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis MA, Gelfand DH, Sninsky JJ, White TJ (eds) PCR protocols, a guide to methods and applications. Academic, San Diego, pp 315–322
Acknowledgments
We are grateful to the following people for their help with fieldwork: Thitiya Boonpratuang, Edward Grand, Tran Thi My Hanh, Amy Honan, Samantha Karunarathna, Jennifer Kerekes, Thanh Huyen Le, Jiankui Liu, Maria Alice Neves, Todd Osmundson, Dirk Stubbe, Phongeun Sysouphanthong, Chan Hong Twu, Nopparat Wannathes and Nilam Wulandari. Dr Annemieke Verbeken is thanked for correcting the Latin diagnoses of new species. We thank the National Science Foundation (USA) for providing financial support to Rui-Lin Zhao from a PEET-grant to Desjardin (DEB-0118776). King Mongkut’s Institute of Technology Ladkrabang (KMITL) is thanked for providing the Materials Transfer Agreement.
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Zhao, Rl., Desjardin, D.E., Soytong, K. et al. A monograph of Micropsalliota in Northern Thailand based on morphological and molecular data. Fungal Diversity 45, 33–79 (2010). https://doi.org/10.1007/s13225-010-0050-4
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DOI: https://doi.org/10.1007/s13225-010-0050-4