Polysiphonia fibrata
Species of alga
From Wikipedia, the free encyclopedia
Polysiphonia fibrata is a species of Polysiphonia that grows as small dense tufted and finely branched marine alga in the Rhodophyta.
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| Polysiphonia fibrata | |
|---|---|
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| Polysiphonia fibrata | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Rhodomelaceae |
| Genus: | Polysiphonia |
| Species: | P. fibrata |
| Binomial name | |
| Polysiphonia fibrata (Dillwyn) Harvey in W.J.Hooker | |
Description
The branches of P. fibrate are numerous and much interwoven forming tufts up to 20 cm long. They are fine, terete, cylindrical, erect and dull brownish-red in colour. The branches consist of a central axis with 4 pericentral cells all of the same length as the axial cells. The branches become corticated near the base. Rhizoids and trichoblasts are abundant.[1]
Reproduction
The plants are dioecious. Spermatangia are borne near the tips of the branches. The cystocarps are clearly shortly stalked. Tetrasporangia are formed in the branches near the tips.[1]
Habitat
Distribution
Note
Other species are similar to P. fibrata and difficult to distinguish.[1]
