This study was undertaken to investigate the mineral
nutrition of aquatic Hyphomycetes by determining the mineral
requirements of several species. On the basis of rapidity
and reproducibility of growth, tour species were selected.
These were Hellscus lugdunensis Webster (Nectria lugdunensis
Webster), Flagellospora penici11ioides Ingold (Nectria
penicillioides Ranzoni), Clavariopsis aquatics DeWi1deman
and Lunulospora curvula Ingold. These were grown in liquid
culture on a rotary shaker at constant temperature.