Mel`an*co`ni*a"les (?), n. pl. [NL., fr. Melanconium, name of the typical genus, fr. Gr. &?; black + &?; dust, in allusion to the dark spores.] (Bot.)

The smallest of the three orders of Fungi Imperfecti, including those with no asci nor pycnidia, but as a rule having the spores in cavities without special walls. They cause many of the plant diseases known as anthracnose.

 

© Webster 1913

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