Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 70. (Budapest 1978)

Bohus, G.: Agaricus studies, VIII. (Basidiomycetes, Agaricaceae)

Herbarial data: 1. Hortobágy: Kónya, saline pasture, 17 Nov. 1966, leg. BOHUS et VÉSSEY; 22 May 1974, 18 Sept. 1975, 9 Nov. 1976, leg. BABOS. — 2. Hortobágy: Nyárijárás, saline pasture, 6 June 1975, 14. Sept. 1976, leg. BABOS et FRIESZ. — 3. Hortobágy: Újszentmargita, saline pasture, 2 June 1976, leg. BABOS; 6 Oct. 1976, leg. BABOS, GRÚSZ et RIMÓCZI. — 4. Hortobágy: Nagyiván, saline pasture, Oct. 1974, leg. SZABÓ; 9 Sept. 1976, leg. KOMÁROMY. — 5. Hortobágy: between Kaparó-csárda and Nagyiván, saline pasture, 2. June 1976, leg. BABOS; 14 Sept. 1976, leg. BABOS et FRIESZ. — 6. Hortobágy: Hagymás, saline pasture, 6 Oct. 1976, leg. BABOS, GRÚSZ et RIMÓCZI. — 7. Gödöllő, grassy place, 23 Oct. 1966, leg. TÓTH. Agaricus campester (L.) FR. var. equestris MOELL The characteristic yellow colouring is of different extent: (1) it is already in the habitat that the untouched fruit body is sometimes remarkably yellow, while on other occasions it is ± yellow (such is s. n. Psalliota campestris var. isabellina in Fig. 28/1. of ESSETTE 1964); or, (2) it is turning yellow at touching; or, (3) the yellowish colour appears only during drying. Even on these occasions, the small spores of the fungus, which is still white while fresh, is an indication of the fact that the species belongs to this taxon. Herbarial data: 1. Nadap, meadow, May 1951, leg. BOHUS. — 2. Mts. Börzsöny: near Királyr ét, grassy place, 22 July 1957, leg. SZUJKÓ-LACZA. — 3. Mts. Zempléni: near rivulet Kemence, meadow, 2 Sept. 1958, leg. BABOS et BOHUS. — 4. Mts. Pilis: near Budakalász, pasture, 11 Nov. 1966, leg. BABOS, BOHUS et VÉSSEY. — 5. Mts. Mátra: near Parádsasvár, pasture, 19 Sept. 1967, leg. BABOS et BOHUS; 27 Sept. 1967, 25 Sept. 1968, 2 Sept. 1969, leg. BABOS, BOHUS et VÉSSEY. — 6. Kölesd, pasture, 2 Oct. 1972, leg. BABOS, BOHUS et IMREH. — 7. Hortobágy: near village Hortobágy, pasture, 3 Sept. 1970, leg. BABOS et VÉSSEY. — 8. Hortobágy: Kónya, saline pasture, 18 Sept. 1975, leg. BABOS. — 9. Hortobágy: Nyárijárás, saline pasture, 14 Sept. 1976, leg. BABOS et FRIESZ. — 10. Hortobágy: Egyek-Ohat, saline pasture, 27 May 1974, leg. BABOS. — 11. Hortobágy: Újszentmargita, saline pasture, 6 Oct. 1976, leg. BABOS, GRÚSZ et RIMÓCZI. — 12. Hortobágy: Hagymás, saline pasture, 14 Sept. 1976, leg. BABOS et FRIESZ; 6 Oct. 1976. leg. BABOS, GRÚSZ et RIMÓCZI. — 13. Hortobágy: between Kaparó-csárda and Nagyiván, saline pasture, 14 Sept. 1976, leg. BABOS et FRIESZ. Agaricus campester (L.) FR. var. squamulosus REA Pileus breaking up into ochreous brownish, brownish or brown squamules or squames. Diameter of pileus according to MOELLER (1950) 3-4 cm, at PILÂT (1953) 4-8 cm and in our material up to 12 cm. Spores bigger than in the type: according to MOELLER 7-8X5-5.5 u.m, at PILÂT 8.3X5.5 um and in the Hungarian material 7-9x4.8-6.3 u.m. Not rarely the exsiccata yellowish, yellow or rusty yellow. Herbarial data: 1. Mts. Zempléni: near village Pálháza, pasture, 16 Sept. 1957, leg. BABOS et BOHUS. — 2. Nagydorog, pasture, I Aug. 1966, leg. BABOS, BOHUS, IMREH et VÉSSEY; 12 Aug. 1968, leg. FERENCZ et VÉSSEY; 30 Aug. 1969, leg. BABOS, BOHUS et IMREH. — 3. Pétervására, 28 Aug. 1969, leg BABOS. — 4. Szil, meadow, 30 Sept. 1973, leg. SZILI. — 5. Hortobágy: Kónya, saline pasture, 15 Nov. 1967, leg. ŐRI; 11 Nov. 1971, leg. Szűcs. —6. Szalkszentmárton, saline pasture, 15 May 1974, leg. BABOS et BOHUS. Agaricus floccipes (MOELL.) BOHUS emend. BOHUS stat. n. (Figs. 1-3) Syn. A. campestris (L.) FR. var. floccipes MOELLER, FRIESIA, 1950, 4: 57-58. In studying the material selected from two gatherings (2 kg and 5 kg) of different localities, it was concluded that war. floccipes of A. campester should be raised to specific level: (1) Because of the well-developed velum universale, the young fungi are similar to the young specimens of Edules, i. e. they are of a Lycoperdon appearance. (2) Margin of pileus in the young specimens with a more or less sulcate-striate edge on the underside exceeding the gills as at the species of Edulis-grouv. (This is visible in MUELLER'S figure, 1950, p. 58; see also Fig .2). (3) The flocci, observable later in the upper part of the stem, originate from the velum partiale which is of a very loose tissue. Because of the loose structure, the ring is very small, and often absent. The velum universale is also loose, its remnants are the flocci and scales occurring in the lower part of the stem, also in zones. Therefore stem is not rare like that of Hebeloma sinapizans. (4) Smell is anis-like unusual in the Campester-group. (5) Fruit body is oft larger and flesh thicker than in A. campester. (6) Pileus turning more or less lemon yellow when touched. The habitat is mainly in meadows-pastures, but the species also occurs in forests neighbouring pastures, under Robinia, Acer and Fraxiims.