tetrasporangium


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tet·ra·spo·ran·gi·um

 (tĕt′rə-spə-răn′jē-əm)
n. pl. tet·ra·spo·ran·gi·a (-jē-ə)
A unicellular sporangium found in certain red algae in which four tetraspores are produced through meiosis.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tetrasporangium

(ˌtɛtrəspəˈrændʒɪəm)
n
(Botany) a sporangium having four asexual spores
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tetrasporangium - a sporangium containing four asexual spores
sporangium, spore case, spore sac - organ containing or producing spores
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Saenger & Wollaston (1982), however, found slightly elongate terminal cells in the type specimen of the taxon and stated that "in the limited material available, no more than one tetrasporangium has been observed on each fertile whorl-branchlet" (page 81) suggesting that they had limited access to tetrasporic material of the species, and they could not dismiss a priori the presence of several tetrasporangia per whorl.
Usually one, rarely two, tetrasporangium per node, tetrahedrally divided, 30-45 [micro]m in diam.