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How to use prothallus in a sentence
With L. inundatum, however, the prothallus is green and leaf-like.
It is obviously important that the male and the female prothallus should be together.
Malic acid has, however, been discovered to be present in the prothallus as a whole.
prothallus, the leaf-shaped green organism that grows from the spore of a fern and produces sexual organs, 49.The Biological Problem of To-day | Oscar Hertwig
prothallus green, formed upon the ground, often variously lobed, usually dicious.
British Dictionary definitions for prothallus
botany the small flat free-living gametophyte that bears the reproductive organs of ferns, horsetails, and club mosses. It is either a green disc on the soil surface or it is colourless and subterranean
- prothallic or prothallial, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for prothallus
The gametophyte of homosporous ferns and some other plants. Prothalli have chlorophyll for photosynthesis, but they are not differentiated into roots, stems, or leaves. They are usually small, flat, and delicate. Prothalli develop from germinated spores, and they bear both archegonia for producing eggs and antheridia for producing sperm. See more at alternation of generations.
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