Boros István (szerk.): A Magyar Természettudományi Múzeum évkönyve 51. (Budapest 1959)
Babos, M.: Notes on the occurrence in Hungary of Lactarius species with regard to their range in Europe
pannonicum festucetosum heterophyllae, Querceto petraeae-Carpinetum pannonicum, Querceto-Carpinetum luzuletosum, and Fagetum silvaticae. In the period of our surveys, it fructified in masses in primarily the Luzulo — Quercetum types (Mt. Samassa in the Mts. Bükk ; Mt. Tökhegy in the Mts. Buda), and in the association Fagetum silvaticae in Lillafüred (Mts. Bükk). Lactarius controversus Pers. ex Fr. A rather rare Central European species (Neuhoff), infrequent also in Hungary. Herb. : under Populus, Mt. Jánoshegy, Mts. Buda, 25 July 1948, leg. Bohus; under Populus, Vácrátót, Com. Pest, 5 Oct. 1949, leg. Bohus ; under Populus in wet grove near stream, in the neighbourhood of Szokolya, Com. Nógrád, 18 August 1951. leg. Jósvafői. — Lit. : Dömös, Com. Esztergom (Szemere) Moesz (1942) ; in locust tree grove mixed with poplars at Gyömrö, Com. Pest, Konecsni (1954—55). Lactarius torminosus Schaeff. ex Fr. A very frequent species in mostly all Europe. We dispose, however, of relatively few data from the area of Hungary, because its mycorrhizal tree, the birch, is also of a subordinate role in our forest communities. Herb. : under Betula, Mts. Karancs, 12 Oct. 1949, leg. Bohus; in fageto (??), Mátraháza, Mts. Mátra, Oct. 1937, leg. Moesz; under Betula and Populus, Mátraháza, Mts. Mátra, 4 Oct. 1940,leg. M o e s z ; in betuleto, Mt. Nagykerekhegy, Mts. Zemplén, 16 Sept. and 26 Oct. 1958, leg. Bohus & Babos. — Lit. : The species referred to as L. torminosus in Hungarian literature is frequently identical with L. mairei, because, up to date, we have not separated these two species, rather similar externally but different as regards habitats. Lactarius mairei Malençon (fig. 1) Even if we take into consideration the fact that the bireh-tree stock of Hungary is very small, it is still very strange that there is a larger material of this species in the collection of the Botanical Department of our Museum than from L. torminosus, very frequent in the larger part of Europe. L. mairei was unknown from Europe (1956) ; it was described from the Atlas in North Africa. L. mairei var. zonatus Pears, was shown from two countries in Europe up to now ; England (1952), and Czechoslowakia 1953). Most of the home data of L. mairei originate from the Mts. Buda, with not only the nominate form but also its zonated variation occurring in that district. The separate state of this latter will probably not be possible to uphold on the basis of a future investigation on any comprehensive material. It fructifies in various deciduous forests, on limestone (but also on other kinds of rocks), in July —September. Its differentiating characteristics (concerning nearly related forms), as derived from our material, are the followings ; diameter of cap 2,5—8,5 cm ; ochreous yellow, ochreous orange, smudgy orange, fallow rufous ; cap of some specimens zonated ; adorned by matted squamous hairs ; hairs later and
