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 5. Current list of Xanthagaricus species and their diagnostic characteristics. Newly examined data in this study are in bold. Non-English descriptions from references are not translated to avoid misunderstandings.

Taxa	Strongly	Color of pileus background	Pileus	Structure of	Basidiospore	Basidiospore	References
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	caespitose	and squamules (descriptions	diameters pileus squamules		sizes (μm as unit	surface under
	or not	were shortened from the	(mm)	(descriptions of	for length and	SEM
		original text in references)		the cell shape and	width; av. means
				size were shortened	average)
				from the original
				text in references
				and shown in the
				brackets)
X. appendiculatus	not	pale violet to violet	15–20	epithelioid (globose	(6) 6.5–7.5 (8.5)	unknown	Al-Kharousi et
		background with dark		to subglobose (13.5– × (3.5) 4–5 (5.5),			al. (2022)
		reddish-purple to very dark		21.5 µm diam) cells	av. 7.00 × 4.60, Q
		reddish-purple squamules		in the upper layer,	= 1.50–1.70, av.
				broadly ellipsoid to	Q = 1.60
				oblong cells (18–57
				× 12–15 µm) in the
				lower layer)
X. boluoshanensis	yes	background ceramic white; 2.5–9		epithelioid (globose	(4.5) 5–5.5 ×	smooth	This study
		squamules thatch yellow,		to subglobose cells	3–3.5, av. 5.16 ×
		dull thatch yellow, bright		measured 8–23 ×	3.05, Q = (1.43)
		teak brown, tea orange,		7–18.5 µm)	1.50–1.83, av. Q
		earthy orange to dirty			= 1.70 ± 0.10
		brass brown, becoming
		lighter towards margin;
		margin with distinct but
		fugacious appendices
		concolorous with the
		squamules on the pileus or
		butter orange, dull dirty
		orange to bright earthy
		orange colored