Foodplant / saprobe
internal Diplophlyctis intestina is saprobic on Chara
Foodplant / parasite
internal Diplophlyctis laevis parasitises moribund internode of Chara
Plant / associate
internal Entophlyctis helioformis is associated with filament of Chara
Foodplant / saprobe
Rhizophydium chaetiferum is saprobic on Chara
Molecular Biology and Genetics
Locations of barcode samples
Statistics of barcoding coverage
|Specimen Records:||203||Public Records:||201|
|Specimens with Sequences:||204||Public Species:||21|
|Specimens with Barcodes:||201||Public BINs:||0|
|Species With Barcodes:||21|
Chara is a genus of green algae in the family Characeae. They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures. They are found in fresh water, particularly in limestone areas throughout the northern temperate zone, where they grow submerged, attached to the muddy bottom. They prefer less oxygenated and hard water and are not found in waters where mosquito larvae are present. They are covered with calcium carbonate deposits.
The branching system of Chara species is complex with branches derived from apical cells which cut off segments at the base to form nodal and internodal cells alternately. They are typically anchored to the littoral substrate by means of branching underground rhizoids. Chara plants are rough to the touch because of deposited calcium salts on the cell wall. The metabolic processes associated with this deposition often give Chara plants a distinctive and unpleasant smell of hydrogen sulfide.
The plant body is a gametophyte. It consists of a main axis (differentiated into nodes and internodes), dimorphic branches (long brach of unlimited growth and short branches of limited growth), rhizoids (multicellular with oblique septa) and stipulodes (needle shaped structures at the base of secondary laterals.
Chara reproduces vegetatively and sexually. Vegetative reproduction takes place by tubers, amylum stars and secondary protonema. The fructifications for sexual reproduction are globule or antheridium (male) and nucule or archegonium (female).
- Chara braunii (ITIS)
- Chara canescens (ITIS)
- Chara contraria (ITIS) opposite stonewort
- Chara corallina (ITIS)
- Chara elegans (ITIS)
- Chara excelsa (ITIS)
- Chara fibrosa (ITIS)
- Chara formosa (ITIS)
- Chara fragilis (ITIS)
- Chara globularis (ITIS)
- Chara hispida (ITIS)
- Chara hornemannii (ITIS)
- Chara intermedia (ITIS)
- Chara nataklys
- Chara sejuncta (ITIS)
- Chara virgata (ITIS)
- Chara vulgaris (ITIS)
- Chara zeylanica (ITIS)
- Chara connivens (convergent stonewort)
|This section requires expansion. (December 2012)|
- Palmer, Douglas; et al. (2009), Prehistoric Life: The Definitive Visual History of Life on Earth (first American ed.), Dorling Kindersley, p. 419, ISBN 978-0-7566-5573-0
- F.E.Round, The Biology of the algae, Ernest Arnold, 1966
- Pybus, C. and O'Halloran, P. 2009. Distribution of some submerged aquatic macrophytes in Eglinton Canal, Galway. Ir. Nat. J. 30: 51 - 53
|This Alga-related article is a stub. You can help Wikipedia by expanding it.|
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