Lesions i estructures fúngiques en arbustos espontanis de Catalunya. II. Sobre fulles i branquillons de Buxus sempervirens

Abstract

Lesions and fungal structures on wild shrubs of Catalonia. II. On leaves and twigs of Buxus sempervirens. Descriptions are given of different types of lesions and fungal populations observed on leaves and twigs of Buxus sempervirens collected in 25 sites of Catalonia since Oct. 1994. The date, collecting sites, implicated taxa and frequency of each one are indicated. In the lesions showing picnidial or ascomatal cavities, the presence or absence of fertile elements into the cavities is noted and its relationship with the season is stated. Twenty-one fungal species (5 coelomycets, 6 hyphomycetes, 9 ascomycetes and 2 basidiomycetes) and 2 lichens have been identified. Dothiorella candollei, Fusarium buxicola, Sesquicillium buxi , Discosphaerina miribelii , Dothidea puccinioides, Gibberella buxi, Nectria desmazierii>and Pseudonectria rousseliana had not been reported until now in our works. The colour photographs that illustrate this study contribute to its practical utility.