Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 64. (Budapest 1972)

Bohus, G.: Hebeloma studies I.

Üllő, Com. Pest, in oakwoods, under poplar on sand, 4 Oct., 1906, leg. M. BABOS, E. VÉSSEY. The species Hebeloma populinum ROMAGN., fructifying also under poplar trees, differs by having a smaller stature (diam. of pileus 2-6 cm, stipe 2-6 X X 0.3-0.8 cm), a cap occasionally also recldish-creme coloured, a stipe light yellowish brown basad, a strong more or less cocoa-smell, and a bitter taste. Hebeloma erustuliniforme (BULL, ex FR.) QUEL. var. minus CKE. em. REA This variety, almost unrecorded since REA (1922), appears regularly and in numerous specimens in certain woods on an acidic substrate. Characteristics: Pileus light (as in the type); 1.7-3.5 cm in diam. Stem 2.5-6 cm high, 0.3-0.6 cm wide. Smell more or less radish-like. Spores 11-13-(14) x 6-7-(7.5) p., amygdaliform. thick-walled, more or less punctate, melleous, Cheilocystidia numerous, 50-65 x 7-10 p., shape elongated clavate (as in the type). Herbaria! data: Mts. Bükk: Vöröskő valley, in deiciduous forest, 30 Sept., 1957, leg. M. BABOS; Samassa valley, in deciduous forest, 25 Oct., 1957, leg. G. BOHUS, M. BABOS; between Alsóhámor and Lillafüred, Lnzula

—Carex pilosa, beechwood, 16 Oct., 1964, leg. G. BOHUS, M. BABOS. Szakonyfalu, Com. Vas, in pine-oakwoods, 30 Oct., 1962, leg. G. BOHUS ,M. BABOS. Hebeloma sacehariolens QUEL. Concerning the smell of this species, there are two designations used in literature. The majority of authors denote it as "sweetish, aromatic". Thus, among others, BRESADOLA (1930) tab. 719, LANGE (1938) p. 96, KONRAD & MAUBLANC (1948), p. 183, PILÂT (1951) p. 327, BUCH (1952) p. 168, KÜHNER & ROMAGNESI (1953) p. 246, HEIM (1957) II. p. 370, MOSER (1967) p. 266. On the other hand, WAKEFIELD & DENNIS (1950) describe it as "a peculiar sickly smell which has been variously described but to us suggests cheap scented soap". According to his letter communication, F. GRÖGER is of the same opinion. My own opinion concurs, based on the observation of many hundreds of specimens (Szenta, Com. Somogy, 10 Oct., 1967) ; the smell of not merely the single specimens but also the scent pervading the forest in the vicinty of the habitat may also be identified with that of a "cheap scented soap". Hebeloma pumilum LGE. (Fig. 2.) There is a relatively copious material of this allegedly rare species in the Museum, since we had been able to collect it as one of the characteristic species of deciduous forests on acidic soils (associations which we had investigated for some time), so that certain supplementary observations can be made, namely 1. though the fungus has a small stature, it is not seldom larger than the dimensions given by several authors (LANGE 1938; HENNIG 1967; REID 1968; according to LANGE, "a very characteristic pygmean species") ; 2. the stem may have a longer root ; 3. the cheilocystidia with a characteristic structure.