| Ceramium shuttleworthianum | |
|---|---|
 | |
Scientific classification  | |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Ceramiaceae |
| Genus: | Ceramium |
| Species: | C. shuttleworthianum |
| Binomial name | |
| Ceramium shuttleworthianum (Kützing) Silva | |
| Synonyms | |
| |
Ceramium shuttleworthianum is a small marine red alga.
Ceramium shuttleworthianum is a small alga fundamentally monosiphonous [1] with densely interwoven branches. The cylindrical branches are incompletely corticate. Spines are formed in whorls on the cortical bands near the apices of the branches which are inrolled near the tips. The spines have a multicellular base merging with the cortical bands cells and are 2 to 3 cells long. [2] Only 3 other species in the British Isles have spines which help in identification: Ceramium echionotum , Ceramium ciliatum , Ceramium gaditanum . on the rocks, mussels and in rock pools in the littoral. [2]
Generally growing in the littoral zone and is common on exposed shores on barnacles and on mussel Mytilus [3] [4] and limpets. [5]
Common around Great Britain, Isle of Man and Ireland. Recorded from the Atlantic coast of Europe [2] and Iceland. [6]
The gametophytes are dioecious. Spermatangia are produced as are cystocarps and tetrasporangia.
In Iceland, Ceramium shuttleworthianum has the conservation status of a vulnerable species (VU). [6]
Ceramium is a genus of Ceramium algae. It is a large genus with at least 15 species in the British Isles.
Osmundea pinnatifida is a species of red alga known by the common name pepper dulse.
Ceramium diaphanum is a species of marine red algae.
Polysiphoides fucoides (Hudson) Greville is a common marine alga in the Division Rhodophyta.
Ceramium botryocarpum is a small red marine alga in the Division Rhodophyta.
Ceramium echionotum is a small marine alga in the division Rhodophyta.
Ceramium flaccidum is a small red marine alga in the Division Rhodophyta.
Ceramium ciliatum is a small marine red alga in the Division Rhodophyta.
Ceramium cimbricum is a small red alga in the division Rhodophyta.
Ceramium deslongchampsii is a small marine red alga in the Division Rhodophyta.
Ceramium gatitanum is a small marine red alga.
Ceramium pallidum is a small marine alga. It occurs in waters off of Europe and Africa (Morocco).
Ceramium secundatum is a small marine red alga.
The taxon Ceramium siliquosum is a small marine alga. It belongs to the red algae genus Ceramium.
Ceramium strictum is a small marine red alga.
Ceramium circinatum is a small marine red algae.
Ceramium virgatum, or the red hornweed, is a small red marine alga.
Membranoptera alata is a small red alga in the Rhodophyta.
Prasiola crispa is a small terrestrial green alga. It has been recorded world-wide mostly from cold-temperate to polar regions.
Gymnogongrus griffithsiae is a small uncommon seaweed.