Agrostis dyeri
| Agrostis dyeri | |
|---|---|
.jpg) | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Pooideae |
| Genus: | Agrostis |
| Species: | A. dyeri |
| Binomial name | |
| Agrostis dyeri Petrie | |
Agrostis dyeri is a species of grass in the family Poaceae, endemic to the North and South Islands of New Zealand.[2] It was described by Scottish-New Zealand botanist Donald Petrie in 1889.[3][4]
Habitat
A. dyeri grows in subalpine to alpine zones, in tussock grassland, scrub, herbfield and scree.[5]
Distribution
A. dyeri is endemic to the New Zealand North and South Islands. In the North, it is found from Mount Hikurangi south to Tararua Range, including Taranaki, the mountains of the Central Plateau, and Ruahine Ranges.[5][6] South Island widespread west and south of main divide and Fiordland, in the east in Marlborough and Canterbury.[5]
The type specimen, WELT 69294!, was collected on the eastern side of the Ruahine Ranges at around 1,400 meters above sea level by Donald Petrie in 1889.[7][8]
Description
A. dyeri forms stiff tufts 15-55 cm tall, with culms overtopping leaves and intravaginal branching. Culms are erect, bearing (4)-5-12-(20) cm panicles with narrowly branches, either contracted after flowering or remaining open. The spikelets are 3-3.5-(4) mm, green to brownish purple, with equal glumes, 2.3-3.3 mm awnless or finely awned lemmas. The palea is 0.5-0.8 mm.[8]
A. dyeri is a septoploid, with 2n = 42 chromosomes. [9]
Ecology
A. dyeri is a host of Ovularia pusilla, a fungus that causes leaf spots.[10][11] It is also a host of Puccinia coronata, a rust fungus that grows on grass leaves.[12][13]
Taxonomy
A. dyeri was described by Scottish-New Zealand botanist Donald Petrie in 1889, and has retained its name since.[3][4]
Two forms can be found in A. dyeri. Throughout its range one form has a contracted panicle after flowering, and has smooth leaf sheaths and anthers 0.6-0.8mm long. In drier parts of the South Island, however, the panicle remains open after flowering, the leaf sheaths scabrous and the anthers 0.8-1.2 mm long. Druce stated that "Occasionally plants of the two may be found growing side by side in the same community".[8]
Hybrids between A. dyeri and naturalised A. capillaris were recorded by Alan Cockayne and H. Allan in 1935, and were described as common.[14] Putative hybrids have not been recorded since.[8]
Agrostis personata used to be called Agrostis dyeri var delicatior, but was elevated to a full species by Elizabeth Edgar in 1991.[15]
Etymology
Agrostis - from the Latin and Greek names for bent grasses, from Greek agron or agros, field or pasture.[16]
dyeri - Named for Sir William Turner Thiselton-Dyer, a 19th-century director of the Royal Botanic Gardens at Kew.[17]
Gallery
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References
- ↑ "Species Details: Agrostis dyeri". New Zealand Threat Classification System. Retrieved 10 August 2026.
- ↑ "Flora of New Zealand | Taxon Profile | Poa subvestita". www.nzflora.info. Retrieved 4 August 2026.
- 1 2 "Descriptions of New Native Plants". Royal Society of New Zealand. 1889. Retrieved 9 August 2026 – via Papers Past.
- 1 2 "Agrostis dyeri Petrie | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 9 August 2026.
- 1 2 3 "Agrostis dyeri". New Zealand Plant Conservation Network. Retrieved 9 August 2026.
- ↑ Herbaria, jurisdiction:Australian Government Departmental Consortium;corporateName:Council of Heads of Australasian. "Partners". avh.ala.org.au. Retrieved 9 August 2026.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ↑ "Agrostis dyeri Petrie". collections.tepapa.govt.nz. Retrieved 9 August 2026.
- 1 2 3 4 Edgar, E.; Forde, M. B. (1 April 1991). "Agrostis L. in New Zealand". New Zealand Journal of Botany. 29 (2): 139–161. Bibcode:1991NZJB...29..139E. doi:10.1080/0028825X.1991.10416717. ISSN 0028-825X.
- ↑ Murray, B. G.; De Lange, P. J.; Ferguson, A. R. (1 December 2005). "Nuclear DNA Variation, Chromosome Numbers and Polyploidy in the Endemic and Indigenous Grass Flora of New Zealand". Annals of Botany. 96 (7): 1293–1305. doi:10.1093/aob/mci281. ISSN 1095-8290. PMC 4247080. PMID 16243852.
- ↑ McKenzie, E. H. C.; Latch, G. C. M. (January 1984). "New plant disease records in New Zealand: Graminicolous fungi". New Zealand Journal of Agricultural Research. 27 (1): 113–123. Bibcode:1984NZJAR..27..113M. doi:10.1080/00288233.1984.10425739. ISSN 0028-8233.
- ↑ "Ramularia pusilla Unger 1833 - Biota of NZ". biotanz.landcareresearch.co.nz. Archived from the original on 10 February 2026. Retrieved 9 August 2026.
- ↑ Mckenzie, E. H. C. (1998). "Rust fungi of New Zealand—An introduction, and list of recorded species". New Zealand Journal of Botany. 36 (2): 233–271. Bibcode:1998NZJB...36..233M. doi:10.1080/0028825X.1998.9512564. ISSN 1175-8643.
- ↑ "McKenzie, E.H.C. 1998: Rust fungi of New Zealand - an introduction, and list of recorded species. New Zealand Journal of Botany 36(2): 233-271. - Biota of NZ". biotanz.landcareresearch.co.nz. Archived from the original on 15 March 2026. Retrieved 9 August 2026.
- ↑ Cockayne, L.; Allan, H. H. (1934). "An Annotated List of Groups of Wild Hybrids in the New Zealand Flora". Annals of Botany. 48 (189): 1–55. doi:10.1093/oxfordjournals.aob.a090429. ISSN 0305-7364. JSTOR 43237520.
- ↑ "Flora of New Zealand | Taxon Profile | Agrostis personata". www.nzflora.info. Retrieved 9 August 2026.
- ↑ "Great Plains Herbaria - Agrostis stolonifera". ngpherbaria.org. Retrieved 9 August 2026.
- ↑ Quattrocchi, Umberto (26 April 2006). "CRC World Dictionary of Grasses : Common Names, Scientific Names, Eponyms, Synonyms, and Etymology - 3 Volume Set". Taylor & Francis. doi:10.1201/9781420003222. ISBN 978-0-429-12268-2. Archived from the original on 31 December 2022.
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