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Saunders, G. W.; McDonald, B. (2010). DNA barcoding reveals multiple overlooked Australian species of the red algal order Rhodymeniales (Florideophyceae), with resurrection of Halopeltis J. Agardh and description of Pseudohalopeltis gen. nov. Botany. 88(7): 639-667.
170678
10.1139/b10-038 [view]
Saunders, G. W.; McDonald, B.
2010
DNA barcoding reveals multiple overlooked Australian species of the red algal order Rhodymeniales (Florideophyceae), with resurrection of Halopeltis J. Agardh and description of Pseudohalopeltis gen. nov
Botany
88(7): 639-667
Publication
Available for editors  PDF available [request]
The DNA barcode (COI-5P) was used to investigate cryptic diversity among Rhodymenia spp. in southern Australia. Whereas eight species are currently recognized, we uncovered ca. 20 genetic species groups, phylogenetically assigned to four genera in two families. Procumbent specimens with molecular and anatomical signatures of the Fryeellaceae are assigned to Pseudohalopeltis tasmanensis gen. et sp. nov. Collections from Lord Howe Island recorded in the field as Rhodymenia/Fauchea sp. are assigned to the poorly known genus Microphyllum as Microphyllum robustum sp. nov. A cluster of species with distinct molecular and anatomical attributes is included in a resurrected Halopeltis J.G. Agardh, including Halopeltis australis (J. Agardh) comb. nov. (type species); Halopeltis austrina (Womersley) comb. nov.; Halopeltis cuneata (Harvey) comb. nov. [including Rhodymenia halymenioides (J. Agardh) Womersley]; Halopeltis gracilis sp. nov.; Halopeltis prostrata sp. nov.; and Halopeltis verrucosa (Womersley) comb. nov. Four additional species of Halopeltis from Lord Howe Island (LH1, LH2), Tasmania (TAS), and Western Australia are not characterized further. For Rhodymenia sensu stricto, similar levels of cryptic diversity were noted. Samples tentatively field-identified as ‘‘Rhodymenia sonderi,’’ but having affiliations to Rhodymenia rather than Halopeltis, are referred to Rhodymenia novahollandica sp. nov. Collections field-identified as R. obtusa are genetically distinct from that species and are assigned to Rhodymenia wilsonis (Sonder) comb. nov. Two highly divergent species currently identified as Rhodymenia leptophylla (LH from Lord Howe Island; TAS from Tasmania), as well as two additional cryptic previously unnamed taxa from South Australia (SA) and Victoria (VIC), are not characterized further.
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Date
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2013-10-24 11:34:16Z
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Decock, Wim
2016-09-06 08:09:18Z
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Dekeyzer, Stefanie

 Type locality
 for Halopeltis gracilis G.W.Saunders, 2010

Balls Pyramid (–31.80798, 158.98528), Lord Howe Island, NSW, Australia; depth 22 m on rock wall. [details]
 Type locality
 for Halopeltis prostrata G.W.Saunders, 2010

Flinders Jetty (–38.46678, 145.01678), Victoria, Australia; depth 4 m on jetty piling. [details]
 Type locality
 for Microphyllum robustum G.W.Saunders, 2010

Balls Pyramid (–31.80798, 158.98528), Lord Howe Island, Australia; depth 22 m. [details]
 Type locality
 for Pseudohalopeltis tasmanensis G.W.Saunders, 2010

Governor Island Reserve (–41.87018, 148.30588), Bicheno, Tasmania, Australia; depth 23 m. [details]
 Type locality
 for Rhodymenia novaehollandica G.W.Saunders, 2010

Queenscliff Jetty (–38.26698, 144.66788), Port Phillip Heads, Victoria, Australia; from 4 m on jetty piling. [details]

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