sphaeriales
Definition
Noun: 1. A large taxonomic order of ascomycetous fungi: This order historically encompassed many fungi characterized by having a dark, hard, flask-shaped fruiting body (a perithecium) with a distinct opening (ostiole). In modern mycological classification, the fungi once grouped under Sphaeriales are often distributed among several more specific orders.
Usage Notes
- Taxonomic Context: The term "Sphaeriales" is primarily used in historical or specialized mycological texts. It represents a former taxonomic grouping. In contemporary scientific usage, you are more likely to encounter the names of the successor orders (e.g., Xylariales, Diaporthales).
- Formality: This is a highly technical, scientific term used almost exclusively in biology and mycology.
Examples
- Noun:
- The classic description of the Sphaeriales emphasized their perithecial ascomata.
- Molecular phylogenetic studies led to the splitting of the Sphaeriales into multiple orders.
Advanced Usage
- In Taxonomic Discussion: The term is often used when discussing the evolution of fungal classification.
- Fungi formerly placed in the Sphaeriales are now classified based on ascus morphology and genetic data.
Variants and Related Words
- Sphaeriaceous (adj): Relating to or characteristic of the former order Sphaeriales.
- The fungus had a sphaeriaceous appearance.
- Perithecium (n): The specific type of fruiting body (ascocarp) that defines this group.
- Pyrenomycete (n): A common name for fungi producing perithecia, which included members of Sphaeriales.
Synonyms
- Pyrenomycetes (in a broad, historical sense): This was an informal name for perithecia-forming fungi, largely overlapping with the Sphaeriales.
Different Meanings
This word has no common meanings outside of its specific taxonomic use in mycology. It does not have idiomatic or phrasal verb uses.
Noun
-
large order of ascomycetous fungi usually having a dark hard perithecia with definite ostioles; in more recent classifications often divided among several orders
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