| Vertebrata thuyoides | |
|---|---|
Scientific classification  | |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Rhodomelaceae |
| Genus: | Vertebrata |
| Species: | V. thuyoides |
| Binomial name | |
| Vertebrata thuyoides (Harvey) Kuntze | |
Vertebrata thuyoides [1] (Boergeseniella thuyoides (Harvey in Mackay) Kylin) [2] is a small marine algae in the Division Rhodophyta.
Vertebrata thuyoides is a small marine algae growing to 15 cm high in dense tufts of erect branches borne alternately and in one plane. The erect branches have 8 to 10 pericentral cells surrounding the central axis and are all of the same length. The whole plant is corticated, and is attached by rhizoids. It is very similar to Vertebrata fruticulosa . [2] [1] Pterosiphonia complanata is similar but can be distinguished by having 5 pericentral around the central cells of the axes. [1]
Common in the British Isles on the southern coasts and Orkney. Also recorded from Morocco and the Mediterranean. [2]
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The sexes are separate. Cystocarps are very small, sessile and borne on the branches. Spermatangial occur in tufts at the apices of the branches and the tetrasporangia occur in the branches in a spiral series. [2]
Polysiphonia lanosa is a common species of the red algae (Rhodophyta) often to be found growing on Ascophyllum nodosum.
Polysiphonia atlantica is a small filamentous species of red marine algae Rhodophyta. The thalli form small tufts up to 3 cm long. The axes are ecorticate consisting of axial cells surrounded by four periaxial cells.
Polysiphonia denudata is a small red alga, Rhodophyta, growing as tufts up to 20 cm long without a main branch axis.
Polysiphonia devoniensis is a species of marine algae. It is a small red alga in the Division Rhodophyta. It is a species new to science only described recently and first published in 1993.
Polysiphonia elongata is a small red marine algae in the Rhodophyta.
Polysiphonia fibrata is a species of Polysiphonia that grows as small dense tufted and finely branched marine alga in the Rhodophyta.
Polysiphonia foetidissima Cocks ex Bornet is small red marine alga in the Rhodophyta.
Polysiphoides fucoides (Hudson) Greville is a common marine alga in the Division Rhodophyta.
Polysiphonia furcellata (C.Agardh) Harvey is small marine red alga in the Division Rhodophyta.
Melanothamnus harveyi, Harvey's siphon weed, is a small marine red alga in the division of Rhodophyta.
Polysiphonia nigra is a species of marine alga in the division Rhodophyta.
Polysiphonia simulans is a small marine alga in the division Rhodophyta.
Polysiphonia stricta is a small red marine alga in the Division Rhodophyta.
Vertebrata simulans Harvey is a small densely branched alga in the Division Rhodophyta.
Vertebrata subulifera is rather small marine alga in the division Rhodophyta.
Vertebrata fruticulosa(Boergeseniella fruticulosa Kylin) is a small marine alga in the Division Rhodophyta.
Ceramium botryocarpum is a small red marine alga in the Division Rhodophyta.
Ceramium secundatum is a small marine red alga.
Brongniartella byssoides Schmitz is a small red marine alga.
Gymnogongrus griffithsiae is a small uncommon seaweed.