Definition of sporangium in English:
sporangium
nounPlural sporangia spəˈran(d)ʒɪəmspəˈrændʒiəm
Botany (in ferns and lower plants) a receptacle in which asexual spores are formed.
Example sentencesExamples
- None of these sporophyte plants produced fertile sporophylls bearing sporangia.
- In each case, fragments of lamina were collected with mature but closed sporangia.
- Thousands of sporangia were also collected on a moss covered decaying conifer log on a ground site at night with the use of a flashlight.
- A parental fern grows, protects, and ultimately ejects its spores from a stalked structure: the sporangium.
- The fungus can be identified microscopically by the production of its reproductive structures: the sporangiophores and sporangia.
Derivatives
adjective
Botany However, sporangia are not always available for fossil ferns; and when present, determining sporangial type is often difficult.
Example sentencesExamples
- The genera are characterized by the sporangiophore and sporangial features and their relationship to and appearance of the rhizoid structures.
- Figure 2 illustrates asexual sporangial structures seen with several of the common Mucoraceae.
- The cone axis is not visible, but the sporangial clusters appear to be arranged spirally.
- However, closer evaluation of sporangial shape shows clearly that there is more variation within the genus than was previously suspected.
Origin
Early 19th century: modern Latin, from Greek spora 'spore' + angeion 'vessel'.
Definition of sporangium in US English:
sporangium
nounspəˈranjēəmspəˈrændʒiəm
Botany (in ferns and lower plants) a receptacle in which asexual spores are formed.
Example sentencesExamples
- In each case, fragments of lamina were collected with mature but closed sporangia.
- Thousands of sporangia were also collected on a moss covered decaying conifer log on a ground site at night with the use of a flashlight.
- The fungus can be identified microscopically by the production of its reproductive structures: the sporangiophores and sporangia.
- A parental fern grows, protects, and ultimately ejects its spores from a stalked structure: the sporangium.
- None of these sporophyte plants produced fertile sporophylls bearing sporangia.
Origin
Early 19th century: modern Latin, from Greek spora ‘spore’ + angeion ‘vessel’.