ulva
Học thuậtThân thiện
Definition
Noun 1. The type genus of the family Ulvaceae: A genus of green algae, serving as the reference genus for its family. 2. Green seaweed having a thallus two cells thick: A common marine algae characterized by its bright green color and a simple, leafy structure (thallus) that is typically two cell layers thick. It is commonly known as sea lettuce.
Usage Examples
- Noun:
- The biologist identified the green seaweed on the rock as Ulva.
- Ulva lactuca is a widespread species often found in tidal pools.
- The study focused on the growth rate of Ulva in nutrient-rich waters.
Advanced Usage
- As a common name: While "Ulva" is the scientific genus name, it is often used informally to refer to any of its species, which are collectively called sea lettuce.
- After the storm, the beach was covered in washed-up ulva.
Variants and Related Words
- Sea lettuce: The common name for algae of the genus , describing its edible, lettuce-like appearance.
- Ulvaceae: The botanical family name to which the genus belongs.
- Ulvales: The name of the taxonomic order encompassing the family Ulvaceae.
Synonyms
- Sea lettuce (common name)
- Green algae (broader category)
Related Terms (Scientific Context)
- Genus: The taxonomic rank above species and below family. is a genus.
- Thallus: The undifferentiated body of an algae, fungus, or lichen. has a sheet-like thallus.
- Chlorophyta: The division (phylum) of green algae to which belongs.
Noun
- type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce