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单词 volva
释义

Definition of volva in English:

volva

noun ˈvɒlvəˈvälvə
Botany
  • (in certain fungi) a veil which encloses the fruiting body, often persisting after rupture as a sheath at the base of the stalk.

    Example sentencesExamples
    • Gomphidius and Chroogomphus species have neither volvas nor skirtlike rings, although most species have a veil when young which leaves a fragmentary ring on the stem of the mushroom as it matures.
    • The saccate volva is attached only near the base of the stem, grayish on the outer surface, and 20-35 mm wide.
    • Volvariella is the third genus in which one encounters an obvious volva in the gilled fungi.
    • Amanita fulva is tawny and has a volva that is not constricted and often stains rusty brown.
    • Amanitas have many superficial resemblances which can confuse amateur mushroom hunters: it is better to avoid veiled mushrooms with bulbed bases or volvas unless you are very experienced with mushrooms.

Origin

Mid 18th century: modern Latin, from Latin volvere 'to roll, wrap round'.

 
 

Definition of volva in US English:

volva

nounˈvälvə
Botany
  • (in certain fungi) a veil which encloses the fruiting body, often persisting after rupture as a sheath at the base of the stalk.

    Example sentencesExamples
    • Amanitas have many superficial resemblances which can confuse amateur mushroom hunters: it is better to avoid veiled mushrooms with bulbed bases or volvas unless you are very experienced with mushrooms.
    • Volvariella is the third genus in which one encounters an obvious volva in the gilled fungi.
    • Gomphidius and Chroogomphus species have neither volvas nor skirtlike rings, although most species have a veil when young which leaves a fragmentary ring on the stem of the mushroom as it matures.
    • The saccate volva is attached only near the base of the stem, grayish on the outer surface, and 20-35 mm wide.
    • Amanita fulva is tawny and has a volva that is not constricted and often stains rusty brown.

Origin

Mid 18th century: modern Latin, from Latin volvere ‘to roll, wrap round’.

 
 
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更新时间:2024/12/23 0:49:24