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cluster cup

noun
  1. aecium.
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Origin of cluster cup

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cluster cup

Historical Examples of cluster cup

  • The first form met with in most rusts is sometimes called the “cluster-cup” stage, and in many species is the only stage known.

    Elements of Structural and Systematic Botany

    Douglas Houghton Campbell

  • They are thick-walled, and the contents resemble those of the cluster-cup spores described above.