Agaricus Species Research Articles

Schwermetalle in höheren Pilzen Cadmium, Zink und Kupfer Heavy Metals in Higher Fungi Cadmium, Zinc, and Copper

Abstract In a series of 190 samples, higher fungi, especially from the genus Agaricus, were analyzed by atomic absorption spectroscopy on their content of the trace metals cadmium, zinc, and copper. Cd was found to be present in high concentrations in some Agaricus species belonging to special taxonomic groups. In relation to soil concentrations, Cd is highly enriched in some Agaricus spec., the enrichment being a taxonomic criterion of special value. Among the remaining genera of higher fungi, only Leucoagaricus and Amanita showed similiar enrichment properties for cadmium. The chemically related metals Zn and Cu were found to be relative uniformely distributed in all analyzed fungi. No synergistic or antagonistic relationship between Cd and the other two metals could be detected in the mushrooms.

Hitherto unreported Agaricus species of Central India

Abstract. Karwa A, Rai MK. 2010. Hitherto unreported Agaricus species of Central India. Nusantara Bioscience 2: 141-145. Melghat forest region from Central India was surveyed for occurrence of medicinal and culinary mushrooms during the years 2005-2008. Out of total 153 species, ten species of Agaricus were recorded from different localities. Of these, seven species namely Agaricus bitorquis, A. subrufescens, A. augustus, A. placomyces, A. essettei, A. basioanolosus and Agaricus sp. nov (a new species) are being reported for the first time from the region. The commercial button mushroom Agaricus bisporus lacks good breeding characters due to its bisporic nature. These wild cousins of the button mushroom can definitely prove to be a good source of genetic manipulations to the existing strains and also to develop new strains with improved characters.

A NEW EDIBLE SPECIES OF GENUS AGARICUS IN THE PUNJAB (INDIA).

A NEW EDIBLE SPECIES OF GENUS AGARICUS IN THE PUNJAB (INDIA).

Agarici Austro-Americani: I: Agaricus of Trinidad

Several colleagues having sent to me material of Agaricus from different countries of South America, I am able to start a set of publications on the subject. The present paper concerns the island of Trinidad which was visited in the autumn of 1949 by my colleague and friend Dr. R. W. G. Dennis who has already published some valuable papers on the fungi of this country. I beg the reader to refer to the first of them (Dennis, 195 I) for general remarks concerning geography, climate and vegetation. I know but two papers bearing directly on the subject. The first by W. A. Murrill (1918) summarizes the knowledge of his time on the Agaricaceae of Tropical America; 16 species of Agaricus are recorded, 13 of which are new. Unfortunately, as with most old descriptions, they are generally not sufficiently detailed for a later recognition of the species. Later on the types of Murrill's species were examined by A. H. Smith (1940) who gave valuable sketches of their spores and occasionally was able to add some anatomical details.