The International Botanical Congress in Berlin 1987 accepted a change of Art. 63 of the nomenclatural rules. According to the new, changed wording of Art. 63 the generic name Leccinum is now legitimate. This fact is respected by the author of this paper and therefore Leccinum is here used as a correct name for the genus in question. The genus Leccinum S. F. Gray (Boletaceae) is distinguished from the other boletes by a peculiar arrangement of the surface tissues of the stipe. This peculiar type of the stipe covering is here described. The differences between the stipe coverings of the genera Leccinum and Boletus Fries are discussed in detail. A list of the examined material with notes on some species is appended. The following new combinations are proposed: Leccinum depilatum, Leccinum fragrans, Leccinum luteoporum, Leccinum niveum, Leccinum pseudoscabrum and Leccinum rufescens.
Šutara J. (1989): The delimitation of the genus Leccinum. – Česká Mykologie 43(1): 1–12.
