Heinemannomyces, Hymenagaricus and Xanthagaricus revisited (Basidiomycota, Agaricaceae) Author Yang, Kun L. 0000-0001-5365-6693 College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, Guangdong, China. & Turemugo Lab, Guangzhou 510290, Guangdong, China. mugoture@gmail.com Author Lin, Jia Y. 0009-0000-3488-2169 College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China. & Turemugo Lab, Guangzhou 510290, Guangdong, China. mycofloscula@gmail.com Author Li, Guang-Mei 0009-0005-9487-735X Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China. liguangmei@mail.kib.ac.cn Author Liu, Zhen-Chao 0009-0006-0755-6425 Guangzhou Yuehua Property Co., Ltd., Guangzhou 510060, Guangdong, China. 1828732265@qq.com Author Hosen, Md. Iqbal 0000-0003-2731-6841 Planning and Evaluation Division, Technology Transfer and Monitoring Unit, Bangladesh Agricultural Research Council, Dhaka 1215, Bangladesh. iqbalmyco@gmail.com Author Yang, Zhu L. 0000-0001-9745-8453 Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China. fungi@mail.kib.ac.cn text Phytotaxa 2024 2024-07-10 659 2 112 164 http://dx.doi.org/10.11646/phytotaxa.659.2.2 journal article 302174 10.11646/phytotaxa.659.2.2 e3d56924-a916-4259-8eca-36f140a31cac 1179-3163 13217850

TABLE 4. Current list of Hymenagaricus species and their diagnostic characteristics. Newly examined data in this study are

Taxa	Strongly	Color of pileus background	Pileus	Structure of pileus squamules	Basidiospore sizes	References
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	caespitose	and squamules (descriptions	diameters	(descriptions of the cell shape	(μm as unit for length
	or not	were shortened from the	(mm)	and size were shortened from the	and width; av. means
		original text in references)		original text in references and	average)
				shown in the brackets)
Hy.	not	grande squame centrale	20–35	hymeniform (cellules de 17–27 ×	5.4–6.4 × 3.9–4.5, av.	Heinemann
alphitochrous		jaunâtre clair, laissant		10–16 μm)	5.79 × 4.17, Q = 1.31–	& Little
		apparaître la chair sous-			1.49, av. Q = 1.39	Flower
		jacente blanche puis grisâtre				(1984)
Hy.	unknown	gris ardoise, finement	40–60	trichoid (3–8 μm de diamètre)	5.8–6.5 × 3.9–4.5	Heinemann
ardosiaecolor		furfuracé-moucheté de				(1956)
		flocons bruns
Hy.	yes	light-grey to brownish grey	28–43	trichoid (cylindrical and long and	(4.1) 5.1–6.2 (6.4) ×	Crous et al.
brunneodiscus		with greyish brown to very		irregular hyphae 1.6–3.3 μm diam,	(3) 3.3–3.9 (4), av. 5.6	(2023)
		dark brown squamules		avw = 2.2 μm)	× 3.6, Q = 1.30–1.80,
					av. Q = 1.60