Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 66. (Budapest 1974)
Bohus, G.: Agaricus studies, IV.
B. Spores thinner: 3 — 4 — (4-2) , ellipsoid C. Pileus at first white and also later, when growing in shadow. Against A. pilatianus: With a stature not squat, stem slender, mostly bulbous, marginal cystidia globately ovoid or balloon-shaped, smell mostly weak or moderate, rather of ink, but also carbolic, savoury as food A. xanthodermus GENEV S. str. C. Pileus cinnamon brown squamulose A. phaeolepidotus (MOELL.) MOELL C. Pileus with fine brown, grey or black scales A. placomyces PECK (meleagrisJ. SCHAEFF.) and its form group Agaricus pilatianus sp. n. (Fig. 1) Syn. A. xanthodermus var. pilatianus BOHUS, Ann. Hist.-nat. Mus. Nat. Hung., 1971, 03: 80. This taxon was separated in 1971 only as a variety of A. xanthodermus. But the further investigation of the taxon revealed that certain other species stand closer to this taxon than the nominate species A. xanthodermus itself. Pileus convexo-expansus, primum nonnunquam par urn truncatus, 6—12 cm diam., in statu recenti et juvenili, in locis umbrosis: albus, caeterum plerumque maiorem partem fumoso-brunneolus vel rarius brunneo-griseolus (in locis soli expositis obscurior) et tantum albido- vel cremeo-maculatus, superficie rarius levis, plerumque leniter vel asperius fuscosquamosus, non raro rimose areolato-squamosus ; in statu recenti et juvenili tactu chromio-flavus. Lamellae liberae, 3—5 mm latae, ad ambos fines angustatae, vel raro parum obtusae, primum albidae dein roseae, tandem chocolatario-brunneae, raro purpureo-tinctae. Stipes basin versus gradatim attenuatus, clavatus, subtus et superne attenuatus vel cylindricus, 4,5—8 cm longus (15)—20—30 cmm crassus (satis crass us in comparatione illius Agarici xanthodermi) , albus, fortuitu superne vel subtus fumoso-brunneolus vel brunneolus, in statu recenti et juvenili tactu chromio-flavus; levis. Annulus superne adnatus, duplex, acie non raro brunneolus vel pallide ochraceus. Caro albus, albidus, in stipite fracto prope basin et raro infra cutem colore chromio-flavescens. Odor, praesertim tempore cocturae, plus-minus intense carbolicus (extraordinarie : odor moderatus). Sporae late ovoideae (rotundate ovatae) vel rarius ovoideae (nonnullae sporarum ellipsoideae tantum), 5,5—6,7 X 4,3 —5,0—(5,3) p. Basidia tetraspora, clavata, 20—27 X 6—8 p. Cystidia marginalia, clavata vel late clavata, magnitudine basidiorum aequalia velmaiora, 22—30 X 11,0— 13,5 p.* Fructificat praesertim in locis ab hominibus affectis: in hortis publicis et privatis, in coemeteriis, etc. Typus: 44.849 in Herbario Mus. Hist.-nat. Hung., Budapest. Budapest: Farkasrét, in coemeterio, 1 Junii 1962, leg. G. BOHUS. Further herbarial data: Budapest: Városliget, in park, 11 June 1959, leg. G. BOHUS. - Budapest: Farkasrét, in cemetery, 6 June 1971, 6 August 1972, leg. J. et G. BOHUS. •They are readily recognized when appearing in tufts. The given dimensions - greater than those of basidia - and Fig. 1 do not refer to the marginal cystidia of the type specimen but to another specimen collected at the very same locality though at a different time.
