…flap of tissue called an indusium. In rust and smut fungi, a sorus is a spore mass produced on the leaf of an infected plant. Reproductive structures called sori also occur in various species …

In some species, they are protected during development by a scale or film of tissue called the indusium (pl.: indusia), which forms an umbrella-like cover.

Mar 22, 2025 · One is the so-called false indusium, a rolled-over leaf margin under which sporangia form and mature. The true indusium is a separate and unique formation, the …

The meaning of INDUSIUM is an investing outgrowth or membrane; especially : an outgrowth of a fern frond that covers the sori.

Indusium is a delicate membranous structure that protects the sporangium or sorus in pteridophytes Based on the origin, Indusium may be true or false. True indusium: In the figure, …

The indusium is round, shaped like a tiny umbrella and attached to the leaf from the middle. These sword fern indusia do not quite reach the edge of the sori. Individual sporangia are …

Jul 21, 2021 · Indusium in the largest biology dictionary online. Free learning resources for students covering all major areas of biology.

Oct 18, 2023 · A true indusium is an outgrowth from the underside of a fern leaf, evolving to cover and protect the sporangia. Conversely, a false indusium isn't a separate structure; instead, it's …

Feb 4, 2025 · indusium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette. De Vaan, Michiel (2008) “-uō, -uere”, in Etymological Dictionary of Latin and the other Italic …

The sorus is sometimes covered and protected by an indusium, a flap-like tissue arising from the leaf blade. In addition to its protective function for the developing sporangia, indusia may …