You are here
Plant Taxonomy
Serianthes nelsonii
EOL Text
Historic Range:
Western Pacific Ocean-U.S.A. (GU, MP-Rota)
Perennial, Trees, Woody throughout, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems greater than 2 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Extrafloral nectary glands on petiole, Stipules inconspicuous, absent, or caducous, Leaves compound, Leaves bipinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets alternate or subopposite, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescence panicles, Inflorescence axillary, Bracts very small, absent or caducous, Flowers sessile or nearly so, Flowers actinomorphic or somewhat irregular, Calyx 5-lobed, Calyx hairy, Petals separate, Petals ochroleucous, cream colored, Petals orange or yellow, Stamens numerous, more than 10, Stamens monadelphous, united below, Stamens long exserted, Filaments glabrous, Filaments pink or red, Style terete, Fruit a legume, Fruit unilocular, Fruit indehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit torulose or moniliform, strongly constricted between seeds, Fruit hairy, Fruit 3-10 seeded, Seed with elliptical line or depression, pleurogram, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Compiled from several sources by Dr. David Bogler, Missouri Botanical Garden in collaboration with the USDA NRCS NPDC |
Source | http://plants.usda.gov/java/profile?symbol=SENE9 |
Isotype for Serianthes nelsonii Merr.
Catalog Number: US 1699612
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): P. Nelson
Year Collected: 1918
Locality: "Hayun Lago"., Guam, Mariana Islands, Pacific Islands
- Isotype: Merrill, E. D. 1919. Philipp. J. Sci. 15: 542.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2141694 |
Habitat and Ecology
Systems
- Terrestrial
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/30437 |
Red List Criteria
Version
Year Assessed
- Needs updating
Assessor/s
Reviewer/s
History
-
1998Endangered (E)
-
1978Endangered (E)
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/30437 |
Current Listing Status Summary
Status: Endangered
Date Listed: 02/18/1987
Lead Region: Pacific Region (Region 1)
Where Listed:
Population detail:
Listing status: E
For most current information and documents related to the conservation status and management of Serianthes nelsonii, see its USFWS Species Profile
Population
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/30437 |
Major Threats
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/30437 |
Conservation Actions
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/30437 |
Serianthes nelsonii is a large tree endemic to Guam and Rota of the Mariana Islands. Only one mature tree exists on Guam, while 121 mature trees have been identified on Rota since 1984.[1]
The tree is found in limestone forests in Rota and Guam. It has bipinnately compound leaves and brush-like flowers with long pinkish filaments. Seedpods contain one to seven smooth brown seeds.[1]
Contents
Name[edit]
There are three local names for S. nelsonii. On Guam, it is known as hayun lågu, meaning "northern tree" or "foreign tree", referring to Rota, which is located north of Guam. The common name on Rota is trongkon guåfi, meaning "fire tree". Another name on Rota is trongkon fi'a may have originated in a region on Rota called Fia. Alternatively, "fi'a" may have derived from the Chamorro pronunciation of "fire", from "guåfi". The species was named "nelsonii" by E.D. Merrill in 1919 to honor Peter Nelson of the Guam Department of Agriculture, the discoverer of the plant.[1]
Conservation[edit]
S. nelsonii was declared an endangered plant in 1987[1] and was assessed as critically endangered in 1998.[2] The University of Guam began a program to save the plant in 1998 with the help of numerous other agencies. S. nelsonii seedlings are being raised on protected lands for transplantation back into the wilds of Guam. On Rota, the Department of Lands and Natural Resource is monitoring the plant population and growing seedlings in a plant nursery.[1]
Insufficient regeneration is blamed for the decline of the population. Possible causes include insect predation on seeds and predation on seedlings by invasive ungulates and mealybugs. The subpopulation on Rota is expected to decline as older trees die.[2]
References[edit]
- ^ a b c d e Serianthes nelsonii, poster by Agricultural Experiment Station, College of Agriculture and Life Sciences, University of Guam
- ^ a b "Serianthes nelsonii", IUCN Red List
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Serianthes_nelsonii&oldid=653285839 |