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Unveiling Thuidium Moss: An Enduring Wonder of the Plant Kingdom

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Thuidium-delicatulum-var.-radicans.png from: https://ohiomosslichen.org/new_species_thuidium_delicatulum_var-_radicans/

Exploring the Fascinating World of Thuidium involvens var. thomeanum Broth. Moss



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Mosses are some of the most ancient and resilient plants on Earth. Among the diverse array of moss species, Thuidium involvens var. thomeanum Broth.


thuidium_philibertii.jpeg from: https://www.korseby.net/outer/flora/bryophyta/thuidiaceae/index.html

, commonly known as Thuidium moss, stands out for its unique characteristics and ecological importance. In this blog post, we’ll take a closer look at this fascinating member of the Thuidiaceae family.


Thuidium involvens var. thomeanum Broth. is a species of moss belonging to the division


2021-04-26-11-38-17.jpg from: https://www.britishbryologicalsociety.org.uk/learning/species-finder/thuidium-delicatulum/

Bryophyta and class Bryopsida. The genus Thuidium contains around 200 species worldwide. This particular variety was named after the German botanist


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Carl Müller, who first described it in 1898.

Morphology and Identification

Thuidium involvens var. thomeanum is a pleurocarpous moss, meaning it has a creeping or trailing growth habit. Its stems are pinnately branched and can grow up to 10 cm long


THUIDIUM%2BTOMENTOSUM%2BD.jpg from: https://popmicrosoftnueva.blogspot.com/2020/01/briofitas-pleurocarpicas-hypnales.html

. The leaves are small, ovate-lanceolate in shape, and have a distinctly serrated margin. Under a microscope, you can see the characteristic papillose leaf cells.


Thuidium-recognitum-AH-259-480×360.jpg from: https://sites.cortland.edu/bryophytes/field-guide/mosses/pleurocarp/thuidium-recognitum/

One key feature that helps identify Thuidium mosses is the presence of paraphyllia – small, leaf-like appendages on the stem between the true leaves. In T. involvens var. thomeanum, the paraphyllia are branched and filamentous.

Global Distribution and Habitat

This moss has a wide distribution, found in many parts of Europe, Asia, Africa, and the Americas. It typically grows on soil, rocks, tree bases, and decaying wood in moist, shaded habitats such as forests and ravines.
Thuidium involvens var. thomeanum is able to tolerate a range of environmental conditions, from lowland to montane elevations and from temperate to tropical climates. However, it prefers


Selaginella-involvens-Spikemoss.jpg from: https://www.santhionlineplants.com/product/selaginella-involvens-spikemoss/

humid, calcium-rich substrates.

Ecological Roles and Adaptations

Like other mosses, Thuidium plays important ecological roles:

  • Helps retain moisture and prevent soil erosion
  • Provides habitat and shelter for micro-organisms and small invertebrates
  • Contributes to nutrient cycling by trapping and breaking down organic matter

Thuidium involvens var. thomeanum has several adaptations that allow it to thrive:


From its intricate branching patterns to its global distribution, Thuidium involvens var. thomeanum Broth. is a prime example of the incredible diversity and resilience of mosses. The next time you’re out in nature, take a moment to appreciate the miniature world of these amazing non-vascular plants. What other secrets might they hold?

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