Melanothamnus harveyi (Bailey) Díaz-Tapia & Maggs
Melanothamnus harveyi: https://marylandbiodiversity.com/species/9623
Synonyms
Neosiphonia harveyi  Polysiphonia harveyi  Polysiphonia novae-angliae 
Tags

Map Snapshot

1 Record

GAALWAFRCLMOHOBABCHACEPGAACVCHSMKEQACNTADOWISOWO

Seasonality Snapshot

Resources

View at iNaturalist View at Nature Serve Search Google Images Search MBP Facebook posts
View at Maryland Plant Atlas Search Flora of North America Search Mid-Atlantic Herbaria Consortium Search Norton-Brown Herbarium
Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Source: Wikipedia

Melanothamnus harveyi
Scientific classification Edit this classification
Clade: Archaeplastida
Division: Rhodophyta
Class: Florideophyceae
Order: Ceramiales
Family: Rhodomelaceae
Genus: Melanothamnus
Species:
M. harveyi
Binomial name
Melanothamnus harveyi
(Bailey) Díaz-Tapia & Maggs
Synonyms

Polysiphonia harveyi Bailey

Melanothamnus harveyi (Polysiphonia harveyi), Harvey's siphon weed,[1] is a small marine red alga in the division of Rhodophyta.

Description

[edit]

Melanothamnus harveyi is a small marine alga which grows in tufts no more than 10 centimetres (3.9 in) high. The erect branches are formed by a central axis surrounded by four perecentral cells of the same length. A cortex may develop by cells growing downwards in the grooves between the perecentrals. Latteral branches are usually dense. The holdfast is a disk of downgrowing filaments from which further erect branches develop. The general appearance is very variable.[2]

Reproduction

[edit]

This species is dioecious, meaning that individuals either have male or female reproductive systems. Spermatangial axes develop on trichoblasts. The cystocarps are globular borne on wide stalks. Tetrasporangia occur in series near the tips of the branches.[2]

Habitat

[edit]

Melanothamnus harveyi grows epiphytically on other algae as well as on artificial material.[2]

Distribution

[edit]

This species can be found in England, Scotland, Ireland, Norway, France, Denmark and the east coast of North America.[2][3]

References

[edit]
  1. ^ Bunker, F.StP. D., Brodie, J.A., Maggs, C. and Bunker, A.R. 2017. Seaweeds of Britain and Ireland. Second Edition, Wild Nature Press, Plymouth, UK ISBN 978-0-9955673-3-7
  2. ^ a b c d Maggs, C.A. and Hommersand, M.H. 1993. Seaweeds of the British Isles Volume 1 Rhodophyta Part 3A Ceramiales The Natural History Museum, London ISBN 0-11-310045-0
  3. ^ Morton, O. 2003. The marine macroalgae of County Donegal, Ireland. Bulletin of the Irish biogeographicaln Society no. 27: pp3 - 164


Stub icon

This Rhodophyta-related article is a stub. You can help Wikipedia by expanding it.