hypothallus
Americannoun
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hypothalli
plural
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a layer of hyphae rimming the thallus of certain lichens.
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a filmlike residue at the base of the sporangia of certain slime molds.
Other Word Forms
Noun Inflected Forms
Etymology
Origin of hypothallus
From New Latin, dating back to 1850–55; see origin at hypo-, thallus
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Apart from the peculiar incrustation in the present species, the larger spores, and especially the peculiar white hypothallus, are distinctive.
From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride
Sporangia sub-globose, crowded or superimposed, irregular sessile; hypothallus none; capillitium of slender tubules, arising from the sporangium base, branched, marked with branching veins in an irregular reticulation, and terminating in free extremities.
From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride
Fries thought the species might represent a less perfectly-developed reticularia, and therefore wrote Reticularia olivacea noting, however, the clustered spores and the lack of hypothallus.
From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride
The hypothallus, sometimes entirely wanting, is anon well developed, even continuous, venulose, from stipe to stipe.
From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride
Stipe very short, erect, red-brown, plicate, arising from a small hypothallus.
From The Myxomycetes of the Miami Valley, Ohio by A. P. (Andrew Price) Morgan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
