Hordeum vulgare Erysiphe graminis f. hordei (3)
描述：
Description: English: Blumeria graminis at Hordeum vulgare Nederlands: Echte meeldauw op wintergerst. Date: 2 June 2016. Source: Own work. Author: Rasbak.
Description: English: Blumeria graminis at Hordeum vulgare Nederlands: Echte meeldauw op wintergerst. Date: 2 June 2016. Source: Own work. Author: Rasbak.
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