Virtual Herbarium

of Forest Diseases

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Armillaria sp.

	Diseased tree showing chlorosis on the whole crown.
	Widespread chlorosis and white mycelium under the bark, in the root collar.
	Abundant fruiting bodies at the tree base.
	Sporocarps of Armillaria.
	White mycellium growing under the bark, in the root collar; and subcortical flat rhizomorphs.
	Subcortical flat rhizomorphs and detail of mycellium growing in fans.
	Rounded shaped rhizomorphs growing in the soil.
	Subcortical flat rhizomorphs growing in the bole of a fallen tree.

Back to "Virtual Herbarium"

This web page (http://labpatfor.udl.es/herbariovirtual/armillaria2.html) has been created by:

Carlos Colinas
Vegetal Production and Forest Science Department
University of Lleida

Last update: November 14th, 2004.