Ulotrichales
Order of algae
From Wikipedia, the free encyclopedia
Ulotrichales is an order of green algae in the class Ulvophyceae.[2] Members of this order are most common in freshwater and marine habitats, although some are terrestrial or aerophytic.[3]
| Ulotrichales | |
|---|---|
| |
| Ulothrix zonata | |
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Ulotrichales Borzì |
| Families[1] | |
|
See text | |
| Synonyms | |
|
Acrosiphoniales | |
Algae in the Ulotrichales are diverse in morphology, and include coccoid (round single cells), sarcinoid (three-dimensional packet-like), filamentous (thread-like), and blade-like forms. The cells generally contain a single parietal chloroplast with one to several pyrenoids, and one or several nuclei.[3]
Some algae in the Ulotrichales are diplohaplontic; in these algae the gametophyte stage is dominant and the sporophyte consists of a single club-shaped to spherical, attached zygote. This zygote is known as the Codiolum stage.[3] In other Ulotrichales, sexual reproduction is unknown.[3]
Families
- †Anatoliporaceae
- Binucleariaceae
- Collinsiellaceae
- Gayraliaceae
- Gloeotilaceae
- Gomontiaceae
- Hazeniaceae
- Helicodictyaceae
- Kraftionemaceae
- Monostromataceae
- Planophilaceae
- Sarcinofilaceae
- Tupiellaceae
- Ulotrichaceae
- †Vermiporellaceae
Genera unplaced to family (incertae sedis):[1]
- Caulinema
- Trichosarcina
