| Gymnogongrus griffithsiae | |
|---|---|
 | |
Scientific classification  | |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Gigartinales |
| Family: | Phyllophoraceae |
| Genus: | Gymnogongrus |
| Species: | G. griffithsiae |
| Binomial name | |
| Gymnogongrus griffithsiae (Turner) C.Martius | |
Gymnogongrus griffithsiae is a small uncommon seaweed.
This small alga grows to 5 cm long from a small disc. The fronds are erect, stiff and branch dichotomously in 1 plane, the tips a little flattened. In colour it is dark purplish brown. The structure is muliaxial with elongated cells surrounded cortical cells. [1] [2]
Male spermatangia are unknown. [2] [3] Carpotetasporangial outgrowths, that is sporangia containing four spores, [4] by a carposporophyte outgrowth which develops during the year. [2]
Found in Great Britain and Ireland with a southern range, as far north as Lough Swilly. In the north Atlantic in the Azores in Europe to Massachusetts to Virginia in North America. [5] [6]
The plants grow in rock pools of the lower littoral and in the upper sublittoral. [2]
This species is similar to Ahnfeltia plicata which usually has wiry irregular branching. [2]
Guiry, M.D., Irvine, L.M., Morton, O. 1981. Notes on Irish marine algae- 4 Gymnogongrus devoniensis (Greville) Schotter (Rhodophyta. Irish Naturalists Journal20: 288 - 292.
Palmaria palmata, also called dulse, dillisk or dilsk, red dulse, sea lettuce flakes, or creathnach, is a red alga (Rhodophyta) previously referred to as Rhodymenia palmata. It grows on the northern coasts of the Atlantic and Pacific Oceans. It is a well-known snack food. In Iceland, where it is known as söl[ˈsœːl̥], it has been an important source of dietary fiber throughout the centuries.
Ceramium is a genus of Ceramium algae. It is a large genus with at least 15 species in the British Isles.
Dilsea carnosa, commonly known as the poor man's weather glass or the sea belt, is a species of red algae in the Dumontiaceae family of the order Gigartinales.
Dumontia contorta is a relatively small epiphytic algae of the sea-shore.
Schottera nicaeensis is a species of red algae (Rhodophyta) similar to other small red algae particularly Phyllophora.
Polysiphonia lanosa is a common species of the red algae (Rhodophyta) often to be found growing on Ascophyllum nodosum.
Polysiphonia denudata is a small red alga, Rhodophyta, growing as tufts up to 20 cm long without a main branch axis.
Polysiphonia elongata is a small red marine algae in the Rhodophyta.
Melanothamnus harveyi, Harvey's siphon weed, is a small marine red alga in the division of Rhodophyta.
Polysiphonia stricta is a small red marine alga in the Division Rhodophyta.
Vertebrata thuyoides is a small marine algae 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 shuttleworthianum is a small marine red alga.
Membranoptera alata is a small red alga in the Rhodophyta.
Phyllophora crispa is a medium-sized fleshy, marine red alga. This alga forms dense mats of up to 15 cm thickness, which influence environmental factors, thus creating habitat for several associated organisms.
Phyllophora pseudoceranoides, the stalked leaf bearer, is a small marine red alga.
Phyllophora sicula, the hand leaf bearer, is a small red marine alga.
Polyides rotunda is a species of small red marine alga in the family Polyidaceae.
Gastroclonium reflexum is a small red marine seaweed.