| Uncinia | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Uncinia Pers. |
| Type species | |
| Uncinia australis Pers.[1]
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| Synonyms [2] | |
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Uncinia is a genus of flowering plants in the family Cyperaceae, known as hook-sedges in Australia[3] and as hook grasses or bastard grasses in New Zealand.[4] The genus is characterised by the presence of a long hook formed by an extension of the rachilla,[5] which is used to attach the fruit to passing animals (epizoochory), especially birds,[6] and it is this feature which gives the genus its name, from the Latin uncinus, meaning a hook or barb.[7]
Systematics
Uncinia is a "satellite genus" of the very large genus Carex, alongside other satellites such as Cymophyllus, Kobresia, Schoenoxiphium, Vesicarex.[8] Uncinia seems to form a monophyletic group, with the most distinct species being U. kingii, a species which has sometimes been placed in the genus Carex.[5] Similarly, Carex microglochin has sometimes been included in Uncinia, as U. microglochin.[9]
Distribution
Uncinia has a Gondwanan distribution,[5] with most species found Australia, New Zealand and South America,[3] as far north as Mexico and Jamaica.[10] Of the 50–60 species, 30 are endemic to New Zealand,[11] 6 are endemic to the east coast of Australia,[3] and 4 are endemic to the Juan Fernández Islands.[12] Smaller numbers of species are also found in New Guinea, Borneo, the Philippines, Hawaii, Tristan da Cunha, Kerguelen, Île Amsterdam, Île Saint-Paul, and the Prince Edward Islands, although none are known from the mainland of Africa.[10] This distribution suggests that the genus had an origin in Antarctica.[13]
It contains the following species:
- Uncinia affinis (C. B. Clarke) Hamlin – New Zealand
- Uncinia andina G. A. Wheeler – Argentina
- Uncinia angustifolia Hamlin – New Zealand
- Uncinia araucana G. A. Wheeler – Chile
- Uncinia aspericaulis G. A. Wheeler – Juan Fernández Islands
- Uncinia astonii Hamlin – New Zealand
- Uncinia aucklandica Hamlin – New Zealand
- Uncinia austroamericana G. A. Wheeler – Tierra del Fuego
- Uncinia banksii Boott – New Zealand
- Uncinia bracteosa Phil. – Chile
- Uncinia brevicaulis Thouars – Hawaii, South America, Falkland Islands, Tristan da Cunha, Juan Fernández Islands
- Uncinia caespitosa Boott – New Zealand
- Uncinia chilensis G. A. Wheeler – Chile
- Uncinia clavata (Kük.) Hamlin – New Zealand
- Uncinia compacta R. Br. – Australia
- Uncinia costata Kük. – Juan Fernández Islands
- Uncinia dawsonii Hamlin – New Caledonia
- Uncinia debilior F. Muell. – Lord Howe Island
- Uncinia dikei Nelmes – Marion Island
- Uncinia distans Col. ex Boott – New Zealand
- Uncinia divaricata Boott – New Zealand
- Uncinia douglasii Boott – Juan Fernández Islands
- Uncinia drucei Hamlin – New Zealand
- Uncinia ecuadorensis G. A. Wheeler & Goetgh. – Ecuador
- Uncinia egmontiana Hamlin – New Zealand
- Uncinia elegans (Kük.) Hamlin – New Zealand, Tasmania
- Uncinia erinacea Pers. – South America
- Uncinia ferruginea Boott – New Zealand
- Uncinia filiformis Boott – New Zealand
- Uncinia flaccida S. T. Blake – Victoria (Australia)
- Uncinia fuscovaginata Kük. – New Zealand
- Uncinia gracilenta Hamlin – New Zealand
- Uncinia hamata (Sw.) Urb. – Neotropics
- Uncinia hookeri Boott – New Zealand's subantarctic islands, Macquarie Island
- Uncinia involuta Hamlin – New Zealand
- Uncinia kingii R.Br. ex Boott – Chile
- Uncinia koyamai Gómez-Laur. – Costa Rica
- Uncinia lacustris G. A. Wheeler – Ecuador
- Uncinia laxiflora Petrie – New Zealand
- Uncinia lechleriana Steud. – Magellan Region
- Uncinia leptostachya Raoul – New Zealand
- Uncinia loliacea Phil. – Chile
- Uncinia longifructus (Kük.) Petrie – New Zealand
- Uncinia macloviformis G. A. Wheeler – Juan Fernández Islands
- Uncinia macrophylla Steud. – Chile
- Uncinia macrotricha Franch. – Patagonia
- Uncinia meridensis Steyerm. – Venezuela
- Uncinia multifaria Nees ex Boott – Chile
- Uncinia multifolia Boeckeler – Colombia
- Uncinia negeri Kük. – Chile
- Uncinia nemoralis K. L. Wilson – Australia
- Uncinia nervosa Boott – New Zealand, Tasmania
- Uncinia obtusifolia Boott – New Zealand
- Uncinia ohwiana Koyama – New Guinea
- Uncinia paludosa G. A. Wheeler & Goetgh. – Ecuador
- Uncinia perplexa Boott – Surville Cliffs (New Zealand)
- Uncinia phleoides (Cav.) Pers. – Juan Fernández Islands, South America
- Uncinia purpurata Petrie – New Zealand
- Uncinia rapaensis H. St. John – Tubuai
- Uncinia rubra Boott – New Zealand
- Uncinia rupestris Raoul – New Zealand
- Uncinia scabra Boott – New Zealand
- Uncinia scabriuscula G. A. Wheeler – Argentina, Chile
- Uncinia sclerophylla Nelmes – New Guinea
- Uncinia silvestris Hamlin – New Zealand
- Uncinia sinclairii Boott – New Zealand
- Uncinia smithii Phil. – South Georgia, Falkland Islands
- Uncinia strictissima Petrie – New Zealand
- Uncinia subsacculata G. A. Wheeler & Goetgh. – Ecuador
- Uncinia subtrigona Nelmes – Borneo, New Guinea
- Uncinia sulcata K. L. Wilson – Australia
- Uncinia tenella R. Br. – Australia
- Uncinia tenuifolia G. A. Wheeler & Goetgh. – Ecuador
- Uncinia tenuis Poeppig ex Kunth – Juan Fernández Islands, South America
- Uncinia uncinata (L. f.) Kük. – New Zealand, Hawaii
- Uncinia viridis (C. B. Clarke) Edgar – New Zealand
- Uncinia zotovii Hamlin – New Zealand
References
- ^ "Uncinia". Flora of Australia Online. Australian National Botanic Gardens. Retrieved 2009-11-19.
- ^ Kew World Checklist of Selected Plant Families
- ^ a b c National Herbarium of New South Wales. "Genus Uncinia". New South Wales Flora Online. Retrieved 2009-11-17.
- ^ Peter Johnson (2009). "Wetlands — Reeds, rushes, sedges and low growers'". Te Ara — the Encyclopedia of New Zealand.
- ^ a b c Julian R. Starr & Bruce A. Ford (2009). "Phylogeny and evolution in Cariceae (Cyperaceae): current knowledge and future directions". The Botanical Review. 75 (1): 110–137. doi:10.1007/s12229-008-9020-x. S2CID 38500919.
- ^ Charles T. Bryson and Richard Carter (2008). "The Significance of Cyperaceae as Weeds" (PDF). In Robert A. Naczi & Bruce A. Ford (ed.). Sedges: Uses, Diversity, and Systematics of the Cyperaceae. Missouri Botanical Garden Press. pp. 15–101. ISBN 978-1-930723-72-6.
- ^ "Uncinia". Flora of Australia Online. Australian National Botanic Gardens. Retrieved 2009-11-19.
- ^ Julian Richard Starr (2002). "Systematics of Uncinia Pers. (Cyperaceae)" (PDF). Oxford Plant Systematics. 9: 4–5.
- ^ Julian R. Starr, Stephen A. Harris and David A. Simpson (2004). "Phylogeny of the unispicate taxa in Cyperaceae Tribe Cariceae I: generic relationships and evolutionary scenarios". Systematic Botany. 29 (3): 528–544. doi:10.1600/0363644041744455. S2CID 86230977.
- ^ a b E. Nelmes (1949). "Notes on Cyperaceae: XX. The genus Uncinia in Malaysia". Kew Bulletin. 4 (2): 140–145. doi:10.2307/4113666. JSTOR 4113666.
- ^ L. B. Moore & E. Edgar (1970). "Uncinia Pers., 1807". Flora of New Zealand. Volume II: Indigenous Tracheophyta — Monocotyledons except Graminae. ISBN 0-477-01889-0.
- ^ Gerald A. Wheeler (2007). "Carex and Uncinia (Cyperaceae, Cariceae) from the Juan Fernández archipelago, Chile". Darwiniana. 45 (1).
- ^ E. Nelmes (1951). "Facts and speculations on phylogeny in the Tribe Cariceae of the Cyperaceae". Kew Bulletin. 6 (3): 427–436. doi:10.2307/4118022. JSTOR 4118022.
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This page was last edited on 16 October 2023, at 18:20