| Antitrichia curtipendula | |
|---|---|
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| Antitrichia curtipendula close up | |
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Bryophyta |
| Class: | Bryopsida |
| Subclass: | Bryidae |
| Order: | Hypnales |
| Family: | Leucodontaceae |
| Genus: | Antitrichia |
| Species: | A. curtipendula |
| Binomial name | |
| Antitrichia curtipendula | |
Antitrichia curtipendula (also known as pendulous wing moss or hanging moss) is a species of feather-moss found predominantly in western North America and the western coast of Europe.
Antitrichia curtipendula has dark red stems and green “leaves” that give the overall matt of intertwined steams and roots a rusty yellow looking color. This color varies in intensity depending on the level of moisture being held within the organism. [1] The stems of Hanging Moss can grow up to 15–30 cm long and are host to a leaf with, upon close examination, three midribs. One main and longer midrib going down the center and two fainter and shorter ones on either side. This particular aspect of the leaf sets it apart from other similar Epiphytes like the Lanky Moss (R. Loreus). [2] Found higher in the canopy than some mosses, Antitrichia curtipendula likes to form large clumps on branches, stumps, and tree trunks, looking like a cross between a blanket and a carpet.
Antitrichia curtipendula is native to North America, spanning the western coastline from southern Alaska down to northern California. In California particularly, this moss’ distribution is almost entirely similar to that of the coastal redwoods. This moss likes a moderate coastal climate that renders its habitat seasonally moist. Some other locations that this particular species has been found are Denmark, the Eastern coast of Norway near Stockholm, Austria, the Western coast of France, and the Western coast of Spain. The locations in Western Europe where Hanging Moss has been found are much smaller areas than those in Western North America, where the moss’ habitat is more extensive. [3] This moss prefers a temperate climate with moderate temperatures and moderate to high amounts of precipitation. This moss is found in low to high elevation forests, ranging from around 0–2100 meters in elevation that are predominantly coniferous type trees. They can be found in the forest canopy growing on limbs, branches, stumps and sometimes rocks. [4]
While not being parasites, Epiphytes need a host to grow on. Unlike parasites, they do not cause any damage to the host on which they grow. Their host plant only provides support and a vantage point at which to reach the nutrients needed to grow. Hanging moss does not grow roots into the ground, instead growing complex root systems upon their host plant, that weave themselves into a tight matt[ citation needed ] and provide structure and support to the overall moss community. Living up off the forest floor allows these epiphytes to gain access to the precipitation falling through the forest canopy. Epiphytes engage in photosynthesis, gaining their energy from the incoming solar radiation. Living in the canopy not on the forest floor also gives these organisms access to more sunshine than they would get otherwise. They obtain nutrients and water from the air, eliminating the need for roots that occupy the soil. [5]
Similar to Rhytidiadelphus mosses, Antitrichia curtipendula is close to Rhytidiadelphus loreus (lanky moss) a moss which also has red stems and green leaves and forms mat like structures with their root systems. Unlike Antitrichia curtipendula, this epiphyte will sometimes grow on the ground, climbing upwards with long creeping branches. Unlike the Antitrichia curtipendula, which has three midribs on its leaf, Rhytidiadelphus loreus has a double midrib leaf. Like Antitrichia curtipendula, Rhytidiadelphus loreus and other Rhytidiadelphus species thrive in coastal maritime environments with high potential evapotranspiration. [6] Also related to Antitrichia curtipendula is Rhytidiadelphus squarrosus or bent-leaf moss. As its name implies, the leaf of Rhytidiadelphus squarrosus is characteristically bent and it prefers to grow in open shady areas where persistent moisture is present and other vegetation is minimal, instead of in the forest canopy. [7]
 | This sextion needs additional citations for verification .(February 2024) |
Mosses prefer a shady environment that allows for a consistently moist environment. Antitrichia curtipendula is a small flowerless and seedless plant that reproduces by spores. After germination and when first developing, moss will develop a thin, felt like structure on damp soil, rocks, tree bark, or rocks. This transitional stage in the life cycle of moss leads to the growth of gametophore which then develops into stems and leaves. Wind is an important distributor of moss spores. Since these mosses do not want to grow on the forest floor, they cannot simply fall to the ground and take root. Wind distribution allows for the moss spores to reach a greater distance than they otherwise would and allows for the spores to attach to surfaces within the canopy. Along with wind, insects and birds play a role in helping the reproduction of epiphytes like the hanging moss. When birds and insects land on or brush against moss, they can retain spores on their bodies, carrying them through the forest to where ever they land next. This process has the ability to spread moss spores even farther than the wind might.
| | This section needs additional citations for verification .(February 2024) |
Antitrichia curtipendula is susceptible to anything that threatens the hosts on which they grow. Since epiphytic mosses generally grow on trees, factors that threaten tree growth and health also threaten their growth. Threats such as deforestation alter the habitat in which these mosses grow. After this habitat is altered, they need to wait for the tree canopy to grow back before they are able to then inhabit the area once again. These mosses tend to inhabit mid to old growth forests for the particular reason that these forests are already established enough to provide good structural support for these epiphytes. Also, because these mosses are slow growing, which means to get a structurally sound community in one spot, they need to develop over time.
A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest, is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level, formally described in the International Cloud Atlas (2017) as silvagenitus. Cloud forests often exhibit an abundance of mosses covering the ground and vegetation, in which case they are also referred to as mossy forests. Mossy forests usually develop on the saddles of mountains, where moisture introduced by settling clouds is more effectively retained.
In forestry and ecology, understory, or understorey, also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but above the forest floor. Only a small percentage of light penetrates the canopy so understory vegetation is generally shade-tolerant. The understory typically consists of trees stunted through lack of light, other small trees with low light requirements, saplings, shrubs, vines and undergrowth. Small trees such as holly and dogwood are understory specialists.
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophytasensu stricto. Bryophyta may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically 0.2–10 cm (0.1–3.9 in) tall, though some species are much larger. Dawsonia, the tallest moss in the world, can grow to 50 cm (20 in) in height. There are approximately 12,000 species.
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