family Cycadaceae
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Definition
Noun: - A family of ancient, palmlike plants closely related to ferns, characterized by fertilization via spermatozoids: This term refers to a specific botanical family of gymnosperms. These plants are notable for their primitive reproductive method, which involves motile sperm cells (spermatozoids), a trait they share with ferns. They have a stout, woody trunk and a crown of large, pinnate leaves, giving them a superficial resemblance to palms or tree ferns.
Usage Examples
- Noun:
- The family Cycadaceae includes some of the most ancient seed plants on Earth.
- Botanists study the family Cycadaceae to understand early plant evolution.
- A key characteristic of the family Cycadaceae is fertilization by spermatozoids.
Advanced Usage
- In taxonomic context: Used to specify a particular rank (family) within the order Cycadales.
- The genus Cycas is classified within the family Cycadaceae.
Variants and Related Words
- Cycadaceae: The standard, non-prefixed form of the taxonomic family name.
- Cycadaceae are often found in tropical and subtropical regions.
- Cycad (n): A common name for any plant belonging to the order Cycadales, which includes the family Cycadaceae.
- Many cycads are endangered in the wild.
- Cycas (n): The type genus of the family Cycadaceae.
- Cycas revoluta is a popular ornamental species.
Synonyms
- Cycad family: A common descriptive synonym.
- The cycad family is known for its slow growth.
Related Terms (Not Synonyms)
- Gymnosperm (n): The larger group of seed plants to which the family Cycadaceae belongs.
- Spermatozoid (n): The motile male gamete, a defining feature in the reproduction of this family.
- Fern (n): A group of plants to which cycads are distantly related, sharing the primitive trait of spermatozoid-based fertilization.
Noun
- ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids