Fungi on Juncus roemerianus. 8. New bitunicate ascomycetes

Abstract

Heleiosa barbatula gen. et sp.nov., Massariosphaeria erucacea sp.nov., and Scirrhia annulata sp.nov. are described from Juncus roemerianus in salt marshes of the United States east coast. Whereas H. barbatula is very rare, the other two species do not show a seasonality because they occurred in almost every one of the monthly collections made throughout 2 years. The new genus Heleiosa is of unknown affinity but may belong to Dothideales s.l. Keywords: ascomycetes, Heleiosa, Juncus, Massariosphaeria, salt marsh, Scirrhia.