THE OCCURRENCE OF PYTHIUM IN THE NETHERLANDS: I. HETEROTHALLIC SPECIES

Abstract

Among about 15 different species of Pythium, collected in the Netherlands, three species turned out to be heterothallic. By means of a great number of crossings they could be identified as: Pythium sylvaticum Campbell & Hendrix, P. heterothallicum Campbell & Hendrix and P. intermedium de Bary.