Clitopilus cretoalbus sp. nov. (Entolomataceae, Agaricales), a new species from Pakistan Author Izhar, Aiman Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. aimanizhar25@gmail.com Author Khan, Zaman Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. zamanangra93@gmail.com Author Asif, Muhammad Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. asifgondal101@gmail.com Author Bashir, Hira Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. & Department of Botany, University of Okara, Okara 56300, Pakistan. hira.b21@hotmail.com Author Rani, Afifa Kainat Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. afifakainatrani6771@gmail.com Author Niazi, Abdul Rehman Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. mushroomniazi@gmail.com Author Khalid, Abdul Nasir Fungal Biology and Systematics Research Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan. drankhalid@gmail.com text European Journal of Taxonomy 2023 2023-03-17 861 168 184 journal article 58613 10.5852/ejt.2023.861.2075 4b6fee54-3673-4c7c-b207-ebf563ea3fb6 2118-9773 7746593

Table 1. Comparison of important characters of Clitopilus cretoalbus A.Izhar, Zaman, M.Asif, H.Bashir, Niazi & Khalid sp. nov. and related species.

Taxa	Pileus	Basidia	Basidiospores	Cheilocystidia	Caulocystidia	Origin	References
C. albominutellus	3–8 mm, pale cream, concave to funnel-shaped	12–5 × 5–8 μm	4.5‒7.5 × 2.5‒3.5 μm, ellipsoid to ovoid	absent	absent	Germany	Ludwig 2001
C. apalus	20–30 mm, white, umbilicate to infundibuliform	up to 25 μm, clavate	6–8.5 × 4.5–5.5 μm, broadly oval	present, size and shape not specified	absent	Sri Lanka	Petch 1917; Ahmad et al. 1997
C. bigelowii	6–8 mm, gray, convex to umbilicate to infundibuliform	16‒23 × 6.4‒7.2 μm, 5.6‒7.6 × 3.2–4.5 μm, clavate ellipsoid		absent	26‒40 × 3‒5 μm, cylindric to subcapitate	USA	Baroni 1995
C. chichawatniensis	50–65 mm, surface white to light pale, pleurotoid	25–32 × 7.2–11 µm, clavate to broadly clavate	6.17–8.4 × 4.75– 6.6 µm, ovoid to ellipsoid	absent	absent	Pakistan	Fatima et al. 2022
C. cretoalbus sp. nov.	25–30 mm, white to chalk white, concave to infundibuliform or umbilicate	13‒25 × 6.3‒8 μm, clavate	6.4‒8.5 × 3.6‒5.5 μm, oblong to broadly ellipsoid or amygdaliform	17‒30 × 5.5‒8.8 μm, polymorphic, subcylindrical, lageniform, some filiform	absent	Pakistan	this study
C. peri	8–22 mm, white, convex to infundibuliform	16–18 × 5–7 μm,	5‒8 × 3–5 μm, ellipsoid	absent	absent	Sri Lanka	Petch 1917; Pegler 1977a, 1977b; Ahmad et al. 1997; Baroni & Watling 1999
C. pinsitus	Up to 60 mm, white to pinkish, convex to flattened	19.6‒30 × 6‒8.8 μm, 6.7‒8.7 × 4.1–5.2 μm clavate		absent	absent	France	Josserand 1937; Ahmad et al. 1997
C. scyphoides	5–25 mm, white, convex to umbilicate to infundibuliform	17‒28 × 6.5‒8.5 μm, 7.5‒11.5 × 4–5.5 μm, clavate ellipsoid to oblong		absent	absent	Europe	Singer 1946; Ahmad et al. 1997; Sultana et al. 2011
C. shanglayensis	50–60 mm, white, light yellowish to yellowish red, umbonate	19‒22 × 5‒6 μm, clavate	7‒8 × 4–5 μm, ellipsoid to amygdaliform	absent	absent	Pakistan	Rehman et al. 2022