Illustration of prothallus
- 1 antheridium
- 2 archegonium
- 3 rhizoid
prothallus
noun
pro·thal·lus
(ˌ)prō-ˈtha-ləs 
1
: the gametophyte of a pteridophyte (such as a fern) that is typically a small flat green thallus attached to the soil by rhizoids
2
: a greatly reduced structure of a seed plant corresponding to the pteridophyte prothallus
Dictionary Entries Near prothallus
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“Prothallus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prothallus. Accessed 26 Nov. 2024.
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