Cirriphyllum is a genus of mosses belonging to the family Brachytheciaceae. These mosses are typically found in temperate regions across the globe, growing in various habitats such as soil, rocks, decaying wood, and tree bases.
Etymology
The name "Cirriphyllum" is derived from two Greek roots:
- Cirrus: Referring to a tendril or hair-like appendage, possibly alluding to some species' leaf tips or overall growth form.
- Phyllon: Meaning leaf. The name thus roughly translates to "tendril-leaf" or "hair-leaf," likely describing a characteristic appearance of the leaves or shoots in some members of the genus.
Description
Mosses in the genus Cirriphyllum typically exhibit the following characteristics:
- Growth habit: They often form mats or loose tufts, with stems that can be creeping or ascending, usually branched irregularly or pinnately (feather-like).
- Stems: Stems are typically relatively robust, often shiny when dry.
- Leaves: The leaves are usually ovate to lanceolate, concave, and often pointed (acuminate) or hair-tipped (piliferous). They can be erect-spreading to secund (curved to one side), and often appear somewhat shriveled or wavy when dry. The leaf margins are typically serrulate (finely toothed) near the apex. The costa (midrib) is single and extends halfway or more up the leaf.
- Cells: Laminal cells (leaf cells) are typically linear-vermicular (worm-like) in the middle of the leaf, becoming shorter and broader towards the base and margins.
- Capsules: The sporophytes (spore-producing structures) consist of a seta (stalk) and a capsule. Capsules are typically ovoid to oblong-cylindrical, often inclined or horizontal, and asymmetrical. The operculum (lid) is conic or rostrate (beaked).
- Peristome: The peristome (teeth around the capsule mouth) is double.
Habitat and Distribution
Cirriphyllum species are primarily found in temperate zones of the Northern Hemisphere, though some species have broader distributions. They typically thrive in moist, shaded environments, such as:
- Forest floors
- Damp soil banks
- Rocks (especially calcareous ones)
- Decaying logs and stumps
- Bases of trees
Selected Species
Some well-known species within the genus Cirriphyllum include:
- Cirriphyllum piliferum: Commonly known as the "hair-pointed feather-moss," this species is widespread in Europe and North America. It is characterized by its slender, hair-like leaf tips, giving the mats a soft, feathery appearance.
- Cirriphyllum crassinervium: Often found on calcareous rocks and soil.
- Cirriphyllum flotowianum: A less common species, often associated with wet, nutrient-rich habitats.
Classification
- Kingdom: Plantae
- Phylum: Bryophyta (Mosses)
- Class: Bryopsida
- Order: Hypnales
- Family: Brachytheciaceae
- Genus: Cirriphyllum Grout, 1898