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Enzo Musumeci

The fungal flora of Central Europe. Fungi of the Basel area. 2nd contribution

The author proposes a second contribution towards the knowledge of the fungal flora of the area surrounding Basel (Switzerland, France and Germany); nine species are presented with a full description and illustrations of the macro- and microscopical features: Agaricus pequinii, Psathyrella hirtosquamulosa, Psathyrella laevissima, Cystodermella lactea, Cheimonophyllum candidissimum, Camarophyllopsis atrovelutina, Volvariella terrea, Cordyceps gracilis and Cordyceps larvicola. Cystodermella lactea is described as a new species belonging to the Cystodermella cinnabarina-complex, based on several collections from the Solothurn region.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 9-57.

Lorenzo Lanconelli

New data about Coprinopsis fluvialis, an ink-cap hitherto known only from Italy (RA, FE, Low Padan Plain)

This work reports the results of researches on Coprinopsis fluvialis, a species to be considered very rare and distributed in a restricted area in the Ravenna and Ferrara provinces (Emilia-Romagna). This species was described in 1997 as Coprinus fluvialis, and was later transferred to the genus Coprinopsis, based on molecular phylogenetic studies. Coprinopsis fluvialis is characterised by the very small size, the grey colours, the peculiar ecology on slimy soil of river banks, preferably with Salix and Populus, and microscopic features. The taxon is compared with some other species with different ecology, i.e. C. lagopus, C. xenobia, C. goudensis, and C. epichloea, all of them differing at least in the microscopic features.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 59-65.

Ennio Colucci

A better knowledge of biodiversity serving taxonomic common sense: the example of phytogeographer van Steenis

The author describes the work and the taxonomic thought, as expressed in Flora Malesiana, of C.G.G.J. van Steenis (1901-1986), one of the main phytogeographers of the twentieth century, whose experience about the tropical biodiversity led him to refuse a too narrow species concept.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 67-74.

Mario Cervini

The fungal flora of the Varese province: Inocybe glabrodisca

In this paper several collections of I. glabrodisca P.D. Orton, coming from the Varese and Ticino areas, are reported and described. This species is compared with I. decemgibbosa (Kühner) Vauras, with which it has been erroneously synonymised for a long time.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 75-82.

Angela Lantieri

Contribution to the study of the genus Scutellinia in Sicily: Scutellinia hyperborea, S. legaliae and S. trechispora. 2nd contribution

After a previous contribution to the knowledge of the genus Scutellinia in Sicily, dealing with the first Sicilian records of S. minor, in this work the Author reports three records of other remarkable species with globose spores: S. hyperborea, S. legaliae and S. trechispora. The three species are described macro- and microscopically and illustrated by means of colour photographs. A table comparing the characteristics of the main globose spored species of Scutellinia is presented.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 83-91.

Carmelina Signorino

First records of Chlorophyllum molybdites in Sicily

The Author describes the first Italian collections of Chlorophyllum molybdites, collected in Sicily by the seaside, on grassy soil, near Mascali (Sicily, province of Catania), providing pictures of the specimens collected and of the microscopical features. This species has been collected repeatedly in the same place, growing singly, scattered or forming fairy rings. The Author's findings are probably the first European collections made in a natural and open environment (C. molybdites has been occasionally collected in European greenhouses). C. molybdites is a well-known toxic species, causing frequent gastro-intestinal upsets, and occasionally other problems.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 95-100.

Pierluigi Angeli

A remarkable species: Pseudoomphalina pachyphylla

The Author describes a collection of Pseudoomphalina pachyphylla, an uncommon agaric found in mid November near Sabaudia (Latina, Italy). The description is supplemented by colour pictures of the fresh specimens and of the microscopical characters, as well as a line drawing of the spores.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 101-106.

Eliseo Battistin & Norberto Righetto

Interesting Leptonias: Entoloma caeruleum and E. euchroum. 3rd contribution

Entoloma caeruleum and E. euchroum, two uncommon species in subgenus Leptonia, are described and illustrated macro- and microscopically. Resemblances and differences with respect to similar taxa are discussed. Observations on some microscopical features of the spores of E. euchroum are added.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 107-112.

Alberto Mua & Massimo Sanna

Contribution to the knowledge of the genus Clitocybe in Sardinia

The authors describe some interesting species in the genus Clitocybe collected in Sardinia: Clitocybe cistophila, Clitocybe phaeophthalma, Clitocybe alkaliviolascens, Clitocybe houghtonii, Clitocybe fragrans, Clitocybe nivea. Some critical notes are added.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 113-124.

Marco Donini & Marco Floriani

The genus Albatrellus in Trentino

The authors give a concise account of the species of the genus Albatrellus occurring in Trentino. The genus Albatrellus comprehends fleshy mycorrhizal polypores, some of which are widely appreciated as edible species. The six species occurring in Trentino (including Albatrellus citrinus, recently described from Sweden and recorded for the first time in Italy) are briefly described and illustrated by colour photographs. A key to the species occurring in Italy, mainly based on macroscopical features, is added.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 125-134.

Paolo Davoli & Nicola Sitta

Natural occurrence of formaldehyde in Lentinula edodes fruiting-bodies

Literature data on the occurrence of formaldehyde in shiitake mushrooms (Lentinula edodes), one of the most consumed fungal species worldwide, are reviewed. Apparently, formaldehyde occurs naturally in shiitake fruiting-bodies and does not arise from chemical contamination by man. In particular, formaldehyde would form endogenously as a by-product of the biosynthesis of lenthionine, a sulphur-containing volatile organic compound that is responsible for the typical flavour of shiitake mushrooms and is produced by enzymatic degradation of lentinic acid in L. edodes fruiting-bodies. Although formaldehyde is classified as carcinogenic by inhalation, it is not considered harmful to humans at the con-centrations that are usually found in drinking water and other food items through which it is introduced into the human body. Accordingly, regulatory agencies such as the BgVV (Germany) and FSA (UK) have stated that exposure to formaldehyde at the levels found in shiitake mushrooms (100-300 mg/kg fresh weight) through consumption is unlikely to pose an appreciable risk to human health.

Boll. Gr. micol. G. Bres. (n.s.) 49 (1-3): 135-146.