Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 81. (Budapest 1989)
Bohus, G.: Agaricus studies, X. (Basidiomycetes, Agaricaceae)
Agaricus arvensis ScHFF.: FR. ssp. macrolepis (PlL. et Pouz.) comb. n. (Fig. 3) Basionyme:A arvensisvar.macrolepis PlL.etPouz., 1951, ActaMuseiNat.Prague VIIB, 1:134. According to BON (1985): „Mériterait le rang d'espèce". However, it differs mainly in two features from A. arvensis: pileus imbricated squamose and habitat in Picea woods. And hence is the proposition for a subspecific status. Agaricus macros porn s (MOELL. et J. SCHFF.) PlL. var. excellens (MOELL.) comb. n. B a s i o ny m e : A macrosporus (MOELL, et J. SCHFF.) PIL. ssp. excellens (MOELL.) BOH. 1978, Annls hist-nat. Mus. natn. hung. 70:105. Further recent A. macrosporus gatherings confirmed the earlier observation that the stem-length may reach and exceed the cap-width in this species, too, which is however, one of the criteria of A. excellens „stem at most as long as the cap is wide". Thus, for the separation of the two taxons, only the ecological difference remains: the habitat of A excellens is woodland. Agaricus cappelliiBOHUS et ALBERT-This species of \he Arvensis-grouy with rather great and relatively wide spores was described not long ago (BOHUS & ALBERT 1985). It could be found several times in the habitat of the „type". Further habitat was in the environs of Gödöllő. Here, too, it grew under trees, in frondose wood, by the roadside and also early in the year: 23 April. In this latter material the spore-sizes were mainly 8.5-10 x 6.2-7 urn, but several spores were of bigger size. Agaricus xantholepis (MOELL.) MOELL - Description of gathering - Börzsöny Mts.: Márianosztra, in frondose wood, leg. K. BUCZKÓ, 30 Aug. 1987. -: Pileus 5-6.5 cm; semiglobate; cuticle breaking up into ochrebrownish fibrinöse scales on whitish ground. Gills pale then grey without any rosy colour. Stem 5-6 x 1-1.2 cm; cylindrical, a little clavate; white, turning in most cases immediately deeper yellow. Ring white, membranaceous. Flesh initially white. Spores 4.6-5.2 x 3.5-4 urn. Agaricus cupreobrunneus (J. SCHFF. et STEER: MOELL.) PlL. (Fig. 4) - Descriptions generally characterize the cap-surface uniformly, the same way as does BON (1985) in his monograph, too: „Revetement fibrilleux apprimé, brun vineux, un peu squamuleux au début vers le centre mais finement peigné ensuite comme lustré à la fin vers les bords." Considering this, it was not easy to identify correctly such gatherings, where the structure of the cuticle is not as above described, but the caps have distinct dark squames on light underground, standing densely, sparsely or very sparsely, giving a decorative picture. This is shown partly on the XVI. phototable of MÖLLER'S monography (1950,1951), but it is not referred in the text. Herbarial data of such gatherings: Pilis Mts.: Pilisszentkereszt, on pasture, 11 Nov. 1983, leg. G. VASAS. - Roumania: near Cluj, on meadow, 14 Oct. 1972, leg. K. LÁSZLÓ.
