Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA)
Abstract: Background and aims Planothidium haynaldii (Schaarschm.) Lange-Bert. (≡Achnanthes haynaldii Schaarschm.) is a widely reported species from temperate and cold zones of southern and northern hemispheres despite being originally described from a high altitude stratovolcano (Antisana, 4100 m a...
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Online Access: | https://hdl.handle.net/10067/1207720151162165141 https://repository.uantwerpen.be/docman/irua/61b732/27fa79f3.pdf |
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ftunivantwerpen:c:irua:120772 2024-10-06T13:43:12+00:00 Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) Wetzel, Carlos E. Van de Vijver, Bart Kopalová, Kateřina Hoffmann, Lucien Pfister, Laurent Ector, Luc 2014 pdf https://hdl.handle.net/10067/1207720151162165141 https://repository.uantwerpen.be/docman/irua/61b732/27fa79f3.pdf eng eng info:eu-repo/semantics/altIdentifier/isi/000344581500013 info:eu-repo/semantics/altIdentifier/doi/10.5091/PLECEVO.2014.1058 info:eu-repo/semantics/openAccess 2032-3913 Plant ecology and evolution Biology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftunivantwerpen https://doi.org/10.5091/PLECEVO.2014.1058 2024-09-10T04:06:34Z Abstract: Background and aims Planothidium haynaldii (Schaarschm.) Lange-Bert. (≡Achnanthes haynaldii Schaarschm.) is a widely reported species from temperate and cold zones of southern and northern hemispheres despite being originally described from a high altitude stratovolcano (Antisana, 4100 m a.s.l.) in Ecuador (tropical climatic zone). Although widely cited in the literature, studies concerning the original material were never carried out. The main objective of this paper is to clarify the identity of Planothidium haynaldii and two related species from North-western USA and Antarctic environments. Methods The original type slide of Achnanthes haynaldii Schaarschm. was observed. Additionally, selected samples containing populations currently identified either as Planothidium haynaldii or Achnanthes lanceolata var. capitata O.Müll. collected in Oregon (USA) and James Ross Island (Antarctica) were observed. The samples were analyzed using light (LM) and scanning electron microscopy (SEM). Key results A new species, commonly improperly identified as Planothidium haynaldii, is described as Planothidium amphibium C.E.Wetzel, Ector & L.Pfister sp. nov. from aerial and aquatic habitats of Oregon (USA). This species is widely distributed in the northern hemisphere according to illustrated literature records. Achnanthes lanceolata var. capitata is erected to species level and transferred to the genus Planothidium. Planothidium capitatum (O.Müll.) Van de Vijver, Kopalová, C.E.Wetzel & Ector comb. & stat. nov. seems to be an important component of the communities in the Antarctic region where large populations were found on James Ross Island and Livingston Island living in the epilithon and epipelon of large lakes. Finally, Planothidium haynaldii seems to be rarer than initially expected and its occurrence is confirmed only in the Andes mountain range in South America (recent freshwater sample from Ecuador and as fossil in Chile). Article in Journal/Newspaper Antarc* Antarctic Antarctica James Ross Island Livingston Island Ross Island IRUA - Institutional Repository van de Universiteit Antwerpen Antarctic Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Ross Island The Antarctic Plant Ecology and Evolution 147 3 439 454 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Wetzel, Carlos E. Van de Vijver, Bart Kopalová, Kateřina Hoffmann, Lucien Pfister, Laurent Ector, Luc Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
topic_facet |
Biology |
description |
Abstract: Background and aims Planothidium haynaldii (Schaarschm.) Lange-Bert. (≡Achnanthes haynaldii Schaarschm.) is a widely reported species from temperate and cold zones of southern and northern hemispheres despite being originally described from a high altitude stratovolcano (Antisana, 4100 m a.s.l.) in Ecuador (tropical climatic zone). Although widely cited in the literature, studies concerning the original material were never carried out. The main objective of this paper is to clarify the identity of Planothidium haynaldii and two related species from North-western USA and Antarctic environments. Methods The original type slide of Achnanthes haynaldii Schaarschm. was observed. Additionally, selected samples containing populations currently identified either as Planothidium haynaldii or Achnanthes lanceolata var. capitata O.Müll. collected in Oregon (USA) and James Ross Island (Antarctica) were observed. The samples were analyzed using light (LM) and scanning electron microscopy (SEM). Key results A new species, commonly improperly identified as Planothidium haynaldii, is described as Planothidium amphibium C.E.Wetzel, Ector & L.Pfister sp. nov. from aerial and aquatic habitats of Oregon (USA). This species is widely distributed in the northern hemisphere according to illustrated literature records. Achnanthes lanceolata var. capitata is erected to species level and transferred to the genus Planothidium. Planothidium capitatum (O.Müll.) Van de Vijver, Kopalová, C.E.Wetzel & Ector comb. & stat. nov. seems to be an important component of the communities in the Antarctic region where large populations were found on James Ross Island and Livingston Island living in the epilithon and epipelon of large lakes. Finally, Planothidium haynaldii seems to be rarer than initially expected and its occurrence is confirmed only in the Andes mountain range in South America (recent freshwater sample from Ecuador and as fossil in Chile). |
format |
Article in Journal/Newspaper |
author |
Wetzel, Carlos E. Van de Vijver, Bart Kopalová, Kateřina Hoffmann, Lucien Pfister, Laurent Ector, Luc |
author_facet |
Wetzel, Carlos E. Van de Vijver, Bart Kopalová, Kateřina Hoffmann, Lucien Pfister, Laurent Ector, Luc |
author_sort |
Wetzel, Carlos E. |
title |
Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
title_short |
Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
title_full |
Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
title_fullStr |
Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
title_full_unstemmed |
Type analysis of the South American diatom **Achnanthes haynaldii** (Bacillariophyta) and description of **Planothidium amphibium** sp. nov., from aerial and aquatic environments in Oregon (USA) |
title_sort |
type analysis of the south american diatom **achnanthes haynaldii** (bacillariophyta) and description of **planothidium amphibium** sp. nov., from aerial and aquatic environments in oregon (usa) |
publishDate |
2014 |
url |
https://hdl.handle.net/10067/1207720151162165141 https://repository.uantwerpen.be/docman/irua/61b732/27fa79f3.pdf |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic Livingston Island Ross Island The Antarctic |
geographic_facet |
Antarctic Livingston Island Ross Island The Antarctic |
genre |
Antarc* Antarctic Antarctica James Ross Island Livingston Island Ross Island |
genre_facet |
Antarc* Antarctic Antarctica James Ross Island Livingston Island Ross Island |
op_source |
2032-3913 Plant ecology and evolution |
op_relation |
info:eu-repo/semantics/altIdentifier/isi/000344581500013 info:eu-repo/semantics/altIdentifier/doi/10.5091/PLECEVO.2014.1058 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5091/PLECEVO.2014.1058 |
container_title |
Plant Ecology and Evolution |
container_volume |
147 |
container_issue |
3 |
container_start_page |
439 |
op_container_end_page |
454 |
_version_ |
1812179411354517504 |