Hawaiian Ecosystems at Risk project (HEAR)

Hypnea musciformis
(Hypneaceae)

 
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Hypnea musciformis is a seaweed that forms clumps or masses of loosely intertwined, cylindrical branches, 4-8 inches cm tall, 0.1-0.2 inches in diameter, that become progressively more slender towards the tips. It is firm, cartilaginous, and highly branched. Branching is variable and irregular, often tendril-like and twisted around axes of other algae. The ends of many axes and branches are flattened with broad hooks. Holdfasts are small, inconspicuous, or lacking. It is usually red, but can be yellowish brown in high light environments or in nutrient poor waters. This species is easily distinguished from other native Hypnea species by the presence of flattened, broad hooks at the tips of the branches. It is often found as an epiphyte on other reef algae. 


Species description or overview

Information about Hypnea musciformis from IUCN's ISSG/GISD
Information about Hypnea musciformis is available from the Global Invasive Species Database (GISD) (a product of IUCN's Invasive Species Specialist Group [ISSG]).

Hypnea musciformis overview View info about Adobe Acrobat PDF format
Taxonomy, images, description, ecology, impacts and distribution of Hypnea musciformis are provided by University of Hawaii Botany Department.

Hypnea musciformis: an invasive marine alga in Hawaii
Hypnea musciformis: an invasive marine alga in Hawaii

Hypnea musciformis information
Hypnea musciformis ecology, habitat, dispersal, and management are from The Global Invasive Species Database.

Hypnea musciformis description and ecology from GISD (ISSG)
A species description and information about the ecology of Hypnea musciformis as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Taxonomy & nomenclature

GRIN nomenclature info for Hypnea musciformis
Nomenclatural information about Hypnea musciformis is provided by USDA/ARS/NGRP/GRIN.

Hypnea musciformis information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Hypnea musciformis, as well as other plants, animals, fungi, and microbes of North America and the world.

IPNI nomenclature info for Hypnea musciformis
Nomenclatural information about Hypnea musciformis is provided by The International Plant Names Index (IPNI).


Identification

ReefWatcher's Field Guide to Alien and Native Hawaiian Marine Algae (Common Limu of Hawaii)
Images, descriptions, habitat, and ecology of common Hawaiian limu are provided by the University of Hawaii Sea Grant program.


Impacts

Dr. Lu Eldridge: testimony on H.R. 3558 "Species protection and conservation of the environment"
Dr. Lu Eldridge presented testimony on H.R. 3558 "Species protection and conservation of the environment."

Hypnea musciformis (Hypneaceae): species information from GCW
Information on Hypnea musciformis as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Hypnea musciformis impact information from GISD (ISSG)
Impact information regarding Hypnea musciformis as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Control methods

Hypnea musciformis management information from GISD (ISSG)
Management information for Hypnea musciformis as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Legislation/regulation

Dr. Lu Eldridge: testimony on H.R. 3558 "Species protection and conservation of the environment"
Dr. Lu Eldridge presented testimony on H.R. 3558 "Species protection and conservation of the environment."


Images

Hypnea musciformis information from the Smithsonian Flora of the Hawaiian Islands
Information about Hypnea musciformis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Marine algae of Hawaii: red algae
Alien algae and corresponding competing native species are shown on this site from the University of Hawaii Botany Department.


Distribution

Hypnea musciformis information from the Smithsonian Flora of the Hawaiian Islands
Information about Hypnea musciformis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Hypnea musciformis worldwide distribution from GISD (ISSG)
Worldwide distribution information about Hypnea musciformis is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Books

Hawaiian Reef Plants
Huisman, John M., Isabella A. Abbott, and Celia M. Smith. 2007. Hawaiian Reef Plants. A publication of the University of Hawaii Sea Grant College Program. Report no. UNIHI-SEAGRANT-BA-03-02. ISBN: 1-929054-04-1.


In the news

A little invasive algae goes a long way View info about Adobe Acrobat PDF format
Invasive algae are the topic of the Maui Invasive Species Committee (MISC) Kiai Moku Maui News column (7/6/2008).


Experts

Hypnea musciformis contacts from GISD (ISSG)
Contact information for experts on Hypnea musciformis as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Other resources

Hypnea musciformis references from GISD (ISSG)
References regarding Hypnea musciformis as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


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The Hawaiian Ecosystems at Risk (HEAR) project was historically funded by the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII) through PIERC (USGS) with support from HCSU (UH Hilo). More details are available online. Pacific Basin Information Node (PBIN) National Biological Information Infrastructure (NBII)

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