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Introduction to Fungi, Third Edition

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Plate 4 Archiascomycetes (a c) and Plec<strong>to</strong>mycetes (d f). (a) Peach leaf infected withTaphrina deformans.(b)Taphrina betulina<br />

causing witches’ broom disease on birch. (c) Taphrina amen<strong>to</strong>rum causing abnormal enlargement of individual catkin segments on<br />

Alnus glutinosa.(d)Aspergillus parasiticus. Petri dish with parasexual recombinants deficient in melanin biosynthesis leading <strong>to</strong><br />

colourless spores, and/or in afla<strong>to</strong>xin biosynthesis which leads <strong>to</strong> the accumulation of bright yellow or orange pigments. (e) Orange<br />

rotted by Penicillium digitatum. (f) Excavated cleis<strong>to</strong>thecium of Elaphomyces infected by Cordyceps ophioglossoides.Germinating<br />

ascospores have accumulated as whitish pustules around the perithecial ostioles. (d) kindly provided by J.F. Peberdy, (f) by J. Benn.

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