Gymnogongrus griffithsiae
| Gymnogongrus griffithsiae | |
|---|---|
| |
Scientific classification 
| |
| Clade: | 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.
Description
[edit]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 multiaxial with elongated cells surrounded cortical cells.[1][2]
Reproduction
[edit]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]
Distribution
[edit]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]
Habitat
[edit]The plants grow in rock pools of the lower littoral and in the upper sublittoral.[2]
Possible confusion
[edit]This species is similar to Ahnfeltia plicata which usually has wiry irregular branching.[2]
Further reading
[edit]Guiry, M.D., Irvine, L.M., Morton, O. 1981. Notes on Irish marine algae- 4 Gymnogongrus devoniensis (Greville) Schotter (Rhodophyta. Irish Naturalists Journal 20: 288 - 292.
References
[edit]- ^ Bunker, F.StP, D., Brodie, J.A.Brodie, Maggs, C.A. and Bunker, A.R. 2017. Seaweeds of Britain and Ireland Second edition Wild Nature Press, Plymouth, UK. ISBN 978-0-9955673-3-7
- ^ a b c d e Dixon, P.S. and Irvine, L.M. 1977. Seaweeds of the British Isles Volume 1 Rhodophyta Part 1 Introduction, Nemaliales, Gigartinales. British Museum (Natural History) ISBN 0 565 00781 5
- ^ Fritsch, F.E. 1965 The Structure and Reproduction of Algae Volume 11 Cambridge University Press
- ^ Irvine, L.M.1983 Seaweeds of the British Isles Volume 1 Rhodophyta.p.99.British Museum (Natural History) ISBN 0-565-00871-4
- ^ Morton, O. 1994 Marine Algae of Northern Ireland. Ulster Museum ISBN 0900761288
- ^ Morton, O. 2003. The marine macroalgae of County Donegal, Ireland. Bulletin of Irish biogeographical Society. No. 27
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