Nototrichium humile

• Overview
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Endangered

Common Names

Description

Family Amaranthaceae

Herbs, clambering subshrubs , shrubs , or lianas. Leaves alternate or opposite, entire , exstipulate . Flowers small, bisexual or unisexual , or sterile and reduced, subtended by 1 membranous bract and 2 bracteoles, solitary or aggregated in cymes. Inflorescences elongated or condensed spikes (heads ), racemes , or thyrsoid structures of varying complexity. Bracteoles membranous or scarious . Tepals 3-5, membranous, scarious or subleathery, 1-, 3-, 5-, or 7(-23) -veined. Stamens as many as tepals and opposite these, rarely fewer than tepals; filaments free , united into a cup at base or ± entirely into a tube , filament lobes present or absent, pseudostaminodes present or absent; anthers (1- or) 2-loculed, dorsifixed , introrsely dehiscent . Ovary superior, 1-loculed; ovules 1 to many; style persistent , short and indistinct or long and slender; stigma capitate, penicillate , 2-lobed or forming 2 filiform branches. Fruit a dry utricle or a fleshy capsule, indehiscent, irregularly bursting, or circumscissile. Seeds lenticular , reniform , subglobose, or shortly cylindric , smooth or verruculose .

About 70 genera and 900 species: worldwide; 15 genera (one introduced ) and 44 species (three endemic, 14 introduced) in China.

Morphology of the androecium, perianth (tepals), and the inflorescence has traditionally been used to circumscribe genera and tribes . Pseudostaminodia are interstaminal appendages with variously shaped apices. Filament appendages are the lateral appendages of filaments (one on each side) . The basic structure of the inflorescence is the cyme (branchlets arising from the bracteole axils, the bracteoles serving as bracts for upper flowers), which can be reduced to one flower with two bracteoles and a bract. Units of dispersal vary considerably (capsules opening with lower part persistent, flower and bracteoles falling together, or cymose partial inflorescences breaking off above bract) and can be characteristic for genera. Several genera possess long trichomes serving dispersal at the base of the tepals.[1]

Physical Description

Biology

Reproduction

Duration: Perennial

Taxonomy

Unambiguous Synonyms

1. Nototrichium humile var. parvifolium O. Deg. & Sherff
2. Nototrichium humile var. subrhomboideum Sherff

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Place of publication : Fl. Hawaiian Isl. 373. 1888

Name verified on 31-Mar-1994 by ARS Systematic Botanists. Last updated: 22-May-1997

Similar Species

Members of the genus Nototrichium

There are approximately 5 species in this genus:

N. divaricatum (Na Pali Rockwort) · N. fulvum · N. humile (Kaala Rockwort) · N. sandwicense (Hawaiian Nototrichium) · N. viride

More Info

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• Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books

Further Reading

• Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. (L US Can ed2)
• St. John, H. 1973. List and summary of the flowering plants in the Hawaiian islands. (L Hawaii) [with three vars.].
• United States Fish and Wildlife Service. U.S. Fish & Wildlife Service. Species Information: threatened and endangered animals and plants - on-line resource. (US Fish & Wildl List)
• Wagner, W. L. et al. 1990. Manual of the flowering plants of Hawai'i. (F Hawaii)
• Wagner, W. L. et al. 1999. Hawaiian vascular plants at risk:1999. Bishop Mus. Occas. Pap. 60:15.
• Kuan Ke-chien. 1979. Amaranthaceae. In: Kung Hsien-wu & Tsien Cho-po, eds., Fl. Reipubl. Popularis Sin. 25(2): 194241.

Notes

Contributors

• Global Biodiversity Information Facility. Accessed February 02, 2008. http://www.gbif.org Mediated distribution data from 3 providers.
• USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 29, 2008)

Data Sources

Accessed through GBIF Data Portal February 02, 2008:

• Bernice Pauahi Bishop Museum, Bishop Museum Natural History Specimen Data
• USDA PLANTS, USDA PLANTS Database

Identifiers

• Biodiversity Heritage Library NamebankID: 2646982
• Catalogue of Life Accepted Name Code: ITS-20827
• Global Biodiversity Information Facility Taxonkey: 13738844
• GRIN Nomen Number: 319781
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 20827
• Natural Heritage Network Species Identifier: PDAMA0H010
• U.S. Fish and Wildlife Service Species Identifier: Q1ZL
• U.S.D.A. Plant Symbol: NOHUS
• Zipcode Zoo Species Identifier: 51980

Footnotes

1. Bojian Bao, Thomas Borsch & Steven E. Clemants "Amaranthaceae". in Flora of China Vol. 5 Page 415. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

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