Campylopus bicolor | |
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close up of moss after rain | |
Scientific classification | |
Kingdom: | Plantae |
Division: | Bryophyta |
Class: | Bryopsida |
Subclass: | Dicranidae |
Order: | Dicranales |
Family: | Leucobryaceae |
Genus: | Campylopus |
Species: | C. bicolor |
Binomial name | |
Campylopus bicolor | |
Synonyms [1] | |
Campylopus bicolor is a species of moss found in Australia, New Zealand, [2] [3] and South Africa. It is characterised by blackish colouration, leaves with distinctive hood-like tips, and a broad central strand occupying up to four-fifths of the leaf width. The species plays an important role in rock colonisation, forming moss "aprons" or mats that can store significant moisture and provide microhabitats for other plants. Two varieties are recognised: the typical form (var. bicolor) with hood-like leaf tips, and the rarer var. ericeticola with hair-like points. In Australia, it is found across several states from Western Australia to Tasmania, while in South Africa it occurs only in the Table Mountain area.
Campylopus bicolor was first described by the German bryologist Karl Müller, and the combination was later made by William Wilson in Joseph Dalton Hooker's work Flora Novae-Zelandiae (1854). [4]
The species has two recognised varieties:
Campylopus subbicolorGeh. & Broth. is now considered synonymous with C. bicolor. [5] While C. atroluteus from South Africa was initially considered a subspecies of C. bicolor due to morphological similarities, molecular studies have since revealed them to be distinct species. The genetic distance between them is characteristic of separate species, with no evidence of gene flow between the South African and Australian/New Zealand populations, suggesting long-term geographical isolation. [6]
The distribution pattern of C. bicolor between Australia and Southern Africa parallells that of the plant family Proteaceae, reflecting ancient continental connections from approximately 90 million years ago when Australia and Southern Africa were connected via Antarctica. [4]
Campylopus bicolor is a species of moss characterised by several distinctive features. The plants appear blackish in colour and grow upwards to reach heights of around 2 centimetres. The leaves are arranged around the stem and end in blunt, hood-like ( cucullate ) tips, rather than the pointed tips found in many related species. While these cucullate tips are typically short and broad, they can sometimes be very long and narrow, making the hood-like shape less distinct. A notable anatomical feature is its very broad central strand ( costa ) which occupies between two-thirds and four-fifths of the leaf width. The costa, which appears as a thickened band running up the middle of each leaf, lacks the additional side nerves seen in some other Campylopus species. [4] [5]
When examined under a microscope, the cells of the leaf reveal diagnostic features. The basal cells are notably thickened ( incrassate ), while the upper cells appear more or less rectangular to oval in shape. The spore capsules (sporophytes) are occasionally present, measuring approximately 1.5 millimetres in length. [4]
A less common variant of this moss, known as variety ericeticola, differs from the typical form by having leaves that end in hair-like points rather than hood-like tips. While this variety has been observed growing alongside the typical form, suggesting it may be genetically distinct, some specimens have been found with both types of leaf tips on the same plant. This apparent mixture of forms can be explained by the fact that male reproductive structures (perichaetia) in the typical variety are surrounded by leaves with hyaline (translucent) tips, even though the regular leaves are cucullate. Cultivation experiments conducted with var. ericeticola showed that the hair-pointed leaves persisted even under very wet conditions in laboratory settings, suggesting some genetic basis for this trait. [4] [5]
Campylopus bicolor is found in several Australian states, including Western Australia, South Australia, Victoria, New South Wales, and Tasmania. Outside Australia, the species occurs only in South Africa, specifically in the Table Mountain area. [4] [5]
Within its range, C. bicolor grows on open soil, particularly favouring wet sand or earth-covered rocks. It can be found on both sandstone and granite substrates. [4] Historical collections demonstrate the species' long-term presence in Australia, including specimens from Waverley Cemetery, Sydney, dating back to 1899. [5]
The species plays an important role in rock colonisation, forming moss "aprons" or mats on rock faces that can grow on slopes up to 20 degrees. These mats are often held in place by the roots of surrounding shrubs. The moss cushions accumulate 1–2 cm of humus sand and gravel and exist in a constant state of build-up and break-down, with flat and domed forms representing different stages of development. While these moss mats can store significant amounts of moisture, this water is quickly lost through evaporation, and during drought periods, the mats are often close to wilting point in their upper layers. The mats provide important microhabitats for annual plants and geophytes, which grow there during winter and spring. [7]
The variety ericeticola is considerably rarer, being recorded only from South Australia and Victoria. [4] [5] On at least one occasion, both varieties have been found growing together in the same location, specifically near Nerriga, New South Wales. [5]
Chlorophytum comosum, usually called spider plant or common spider plant due to its spider-like look, also known as spider ivy, airplane plant, ribbon plant, and hen and chickens, is a species of evergreen perennial flowering plant of the family Asparagaceae. It is native to tropical and Southern Africa but has become naturalized in other parts of the world, including Western Australia and Bangladesh. Chlorophytum comosum is easy to grow as a houseplant because of its resilience, but it can be sensitive to the fluoride in tap water, which commonly gives it "burnt tips". Variegated forms are the most popular.
Gasteria is a genus of succulent plants, native to South Africa and the far south-west corner of Namibia.
Campylopus introflexus, also known as the heath star moss, is a species of moss. The first description of the species was made by Johannes Hedwig as Dicranum introflexum in 1801.
Haworthia truncata, locally known as horse's teeth, is a species of succulent plant in the genus Haworthia. It is found in the Little Karoo region, in the far east of the Western Cape Province, South Africa.
Sphagnum squarrosum, commonly known as the spiky bog-moss or spreading-leaved bog moss, is a peat moss species found in nutrient-rich, damp soils and wetlands across the Northern Hemisphere, with isolated populations in South America. Its spiky appearance, resulting from strongly spreading branch leaves, distinguishes it from other peat moss species. Playing an important role in wetland succession, the species is one of the first Sphagnum mosses to colonise developing wetlands. It shows considerable tolerance to mineral-rich conditions and actively modifies its habitat through cation exchange processes.
Dawsonia superba is a moss in the family Polytrichaceae that is found in Australia, New Guinea, Malaysia, and New Zealand. D. superba is the tallest self-supporting moss in the world, reaching heights of 60 cm (24 in). It has analogous structures to those in vascular plants that support large size, including hydroid and leptoid cells to conduct water and photosynthate, and lamellae that provide gas chambers for more efficient photosynthesis. D. superba is a member of the class Polytrichopsida, although it has a sporophyte that is unique from other hair-cap mosses.
Hypnodendron comosum, commonly known as palm moss or palm tree moss, is a ground moss which can be divided into two varieties: Hypnodendron comosum var. comosum and Hypnodendron comosum var. sieberi. Both Hypnodendron varieties most commonly grow in damp locations in the temperate and tropical rainforests of New South Wales, Victoria, and Tasmania in southern Australia and in New Zealand.
Gasteria bicolor is a species of succulent flowering plant in the family Asphodelaceae, native to the Eastern Cape, South Africa.
Hookeria lucens, the shining hookeria, is a species of moss in the family Hookeriaceae. It is native to Europe, east to the Caucasus, Turkey and China, as well as Scandinavia and the Faeroe Islands and western North America.
Campylopus is a genus of 180 species of haplolepideous mosses (Dicranidae) in the family Leucobryaceae. The name comes from the Greek campylos, meaning curved, and pous, meaning foot, referring to the setae which curve downwards.
Ptychominon aciculare is a species of moss found predominantly in Australia, New Zealand, New Caledonia, Samoa, Juan Fernandez Islands and Chile. It is easily recognised given its similarity, especially when partially dried, to a pipe-cleaner. This name is commonly accepted across Australia and New Zealand. It has been observed growing from between sea level to sub-alpine altitudes (1200m).
Orthotrichum lyellii, also known as Lyell's bristle moss, is a species of acrocarpous moss belonging to the family Orthotrichaceae. O. lyellii can be found throughout western North America and Europe. It is found most commonly growing epiphytically on a variety of trees, and less commonly on rocks or boulder substrates.
Polytrichastrum formosum, commonly known as the bank haircap moss, is a species of moss belonging to the family Polytrichaceae.
Polytrichum piliferum, the bristly haircap, is an evergreen perennial species of moss in the family Polytrichaceae. The bristly haircap moss is small-sized to medium-sized and forms loose tufts with wine-reddish stems. It is an acrocarpous moss that appears bluish-green to grey. This moss grows in clumps on erect shoots and becomes a red-brown colour as it grows older. The most distinguishing feature of P. piliferum is the long, white awn at the tips of the leaves, which also give this moss its grey colour. It is the only species in its genus where the awn is completely hyaline.
Wahlenbergia tenella is a herbaceous plant in the family Campanulaceae native to the southern Cape regions of South Africa.
Andreaea blyttii, also commonly known as Blytt's rock moss, is a moss belonging to the family Andreaeaceae, commonly known as rock moss, granite moss, or lantern moss because of this family's unique sporangium. It is part of the genus Andreaea which is known for forming dark brownish or reddish-black carpets in high elevations. This species was first described by Schimper in 1855.
Leptodontaceae is a family of mosses belonging to the order Hypnales. There are 3 genera with a worldwide distribution.
Fissidens taxifolius, the common pocket moss, is a species of moss in the family Fissidentaceae. First described by Johann Hedwig in 1801, it is a small to medium-sized moss that typically grows in dense, yellowish-green to dark green tufts. The species is characterised by its distinctive flattened appearance, with leaves arranged in two opposite rows resembling tiny fern fronds, and by its pointed leaf tips with projecting central nerves. It can grow in artificial light and is known to form extensive turfs in suitable conditions.
Wijkia extenuata, commonly known as spear moss or spiky wiki, is a species of moss from the family Pylaisiadelphaceae. It can be divided into two varieties Wijkia extenuata var. caudata and Wijkia extenuata var. extenuata. It is commonly found throughout the tropical, subtropical, and temperate forests of eastern Australasia and New Zealand.