Ovularia pusilla, Hadrotrichum virescens, Deightoniella arundinacea and Discosia artocreas on grasses in Finland

Authors: Mäkelä, Kaiho & Koponen, Hilkka
Journal: Karstenia, Volume 15 (1976), pages 38-45.
Doi: https://doi.org/10.29203/ka.1976.114
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Abstract:  “Material of this study consists of c. 4650 grass samples gathered on leys, field borders and forests throughout the country during 1966-1974. Collections of Department of Plant Pathology, and Botanical Museum, University of Helsinki, and Mr. Pentti Alanko’s herbarium were also examined. Ovularia pusilla (Ung.) Sacc. et D. Sacc. was found on 29 samples of 11 grass species: Agrostis borealis Hartm., A. tenuis Sibth., Calamagrostis canescens (Web.) Roth, C. epigeios (L.) Roth, C. purpurea Trin., Cinna latifolia (Trevir.) Griseb., Deschampsia caespitosa (L.) PB., D. flexuosa (L.) Trin., Festuca rubra L., Hierochloii odorata (L.) PB., and Poa annua L., throughout the country, being most common on P. annua. Hadrotrichum virescens Sacc. et Roum. was found on nine specimens of four grass species: Agropyron repens (L.) PB., Agrostis stolonifera L., A. tenuis, and Poa Chaixii Vill. in some places as far as Lapland. Deightoniella arundinacea (Sacc.) Hugh. was found on three specimens of three grass species: Calamagrostis purpurea, Molinia coerulea (L.) Moench, and Phragmites communis Trin. in the neighbourhood of Helsinki. Discosia artocreas (Tode) Fr. was found on two specimens of two grass species: Lolium perenne L., and Melica nutans L. in Helsinki.
All these fungi were found to be accidental and infrequent, usually on wild grasses on field borders, and forests. All fungi are of negligible importance.”